dive2408ln.htm010066400202500000012000000740000733561211600142100ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2408 (line)

Alvin 1991 Dive 2408 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2408 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2408
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 745

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2408_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2408_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2408_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 894
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 894
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9492
          Range_Domain_Maximum: 47.9505
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.098
          Range_Domain_Maximum: -129.096
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4957.4
          Range_Domain_Maximum: 5143.1
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6153.6
          Range_Domain_Maximum: 6292.1
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.385069
          Range_Domain_Maximum: 0.649826
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2003.2
          Range_Domain_Maximum: 2219.8
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 914.3
          Range_Domain_Maximum: 1535.45
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.4
          Range_Domain_Maximum: 100.5
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2003.2
          Range_Domain_Maximum: 2219.8
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.9
          Range_Domain_Maximum: 349.1
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.721
          Range_Domain_Maximum: 1.99
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.565
          Range_Domain_Maximum: 1.715
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.359
          Range_Domain_Maximum: 3.909
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 2.978
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4966
          Range_Domain_Maximum: 5146
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6148
          Range_Domain_Maximum: 6290
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 51.94
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
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dive2409ln.htm010066400202500000012000000737610733561207300142300ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2409 (line)

Alvin 1991 Dive 2409 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2409 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2409
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin). 
	4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 806

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2409_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2409_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2409_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 987
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 3
          Range_Domain_Maximum: 1044
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9489
          Range_Domain_Maximum: 47.9498
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.099
          Range_Domain_Maximum: -129.097
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4899.1
          Range_Domain_Maximum: 5012.4
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6118.4
          Range_Domain_Maximum: 6211.8
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.386458
          Range_Domain_Maximum: 0.6375
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2008.2
          Range_Domain_Maximum: 2205.9
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 916.3
          Range_Domain_Maximum: 1518
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.4
          Range_Domain_Maximum: 100.4
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2008.2
          Range_Domain_Maximum: 2205.9
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.5
          Range_Domain_Maximum: 358.8
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.937
          Range_Domain_Maximum: 2.062
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.513
          Range_Domain_Maximum: 1.632
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 8.86
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.19
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4897
          Range_Domain_Maximum: 5009
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6118
          Range_Domain_Maximum: 6212
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 44.53
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
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bute_Definitiondive2410ln.htm010066400202500000012000000740010733561205200142010ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2410 (line)

Alvin 1991 Dive 2410 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2410 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2410
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 111

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2410_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2410_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2410_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 112
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 11
          Range_Domain_Maximum: 143
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9633
          Range_Domain_Maximum: 47.9673
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.097
          Range_Domain_Maximum: -129.087
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5057.8
          Range_Domain_Maximum: 5812.3
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 7713.6
          Range_Domain_Maximum: 8160.3
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.402431
          Range_Domain_Maximum: 0.434375
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2007.4
          Range_Domain_Maximum: 2190.6
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 939.3
          Range_Domain_Maximum: 1025.3
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 3.3
          Range_Domain_Maximum: 34.1
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2007.4
          Range_Domain_Maximum: 2190.6
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 11.6
          Range_Domain_Maximum: 358.9
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.24
          Range_Domain_Maximum: 1.132
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 3.595
          Range_Domain_Maximum: 4.231
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.502
          Range_Domain_Maximum: 1.684
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.279
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5037
          Range_Domain_Maximum: 5755
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 7720
          Range_Domain_Maximum: 8168
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.12
          Range_Domain_Maximum: 43.35
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
inition: Sub Z fix Attribute_Definition_Source: Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2007.4 Range_Domain_Maximum: 2190.6 Attribute: Attribute_Label: Fix1 Attribute_Definition: Name of fix Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: Character Field Attribute: Atdive2411ln.htm010066400202500000012000000737670733561202700142260ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2411 (line)

Alvin 1991 Dive 2411 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2411 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2411
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 561

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2411_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2411_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2411_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 704
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5
          Range_Domain_Maximum: 1058
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9473
          Range_Domain_Maximum: 47.9508
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.1
          Range_Domain_Maximum: -129.095
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4846.4
          Range_Domain_Maximum: 5162.5
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5932.7
          Range_Domain_Maximum: 6325.8
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.384722
          Range_Domain_Maximum: 0.629167
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2001.9
          Range_Domain_Maximum: 2223.9
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 914
          Range_Domain_Maximum: 1506
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 100.4
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2001.9
          Range_Domain_Maximum: 2223.9
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.1
          Range_Domain_Maximum: 358.9
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.674
          Range_Domain_Maximum: 2.284
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.309
          Range_Domain_Maximum: 1.76
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.479
          Range_Domain_Maximum: 3.864
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL freuqnecy for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 3.021
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4845
          Range_Domain_Maximum: 5160
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5932
          Range_Domain_Maximum: 6327
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 90.9
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
bute_Defidive2412ln.htm010066400202500000012000000737700733561200100142110ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2412 (line)

Alvin 1991 Dive 2412 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2412 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2412
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 750

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2412_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2412_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2412_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 968
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 1038
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9469
          Range_Domain_Maximum: 47.9502
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.1
          Range_Domain_Maximum: -129.097
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4852.3
          Range_Domain_Maximum: 5046.1
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5891.7
          Range_Domain_Maximum: 6254.6
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.393056
          Range_Domain_Maximum: 0.634549
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2002.3
          Range_Domain_Maximum: 2210
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 926
          Range_Domain_Maximum: 1513.45
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 100.4
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2002.3
          Range_Domain_Maximum: 2210
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.6
          Range_Domain_Maximum: 359.9
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.824
          Range_Domain_Maximum: 2.331
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for trasnponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.264
          Range_Domain_Maximum: 1.665
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.796
          Range_Domain_Maximum: 5.822
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.242
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4851
          Range_Domain_Maximum: 5045
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5891
          Range_Domain_Maximum: 6255
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 40.02
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
ute_Defidive2413ln.htm010066400202500000012000000737660733561175600142370ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2413 (line)

Alvin 1991 Dive 2413 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2413 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2413
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 621

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2413_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2413_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2413_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 3
          Range_Domain_Maximum: 703
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 3
          Range_Domain_Maximum: 803
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.95
          Range_Domain_Maximum: 47.9688
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.098
          Range_Domain_Maximum: -129.088
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4999
          Range_Domain_Maximum: 5735.8
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6233.1
          Range_Domain_Maximum: 8330.6
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.377778
          Range_Domain_Maximum: 0.563194
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2003.1
          Range_Domain_Maximum: 2204.5
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 904
          Range_Domain_Maximum: 1331
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.9
          Range_Domain_Maximum: 100.3
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2003.1
          Range_Domain_Maximum: 2204.5
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.2
          Range_Domain_Maximum: 359.8
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for trasnponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for trasnponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.426
          Range_Domain_Maximum: 1.864
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.643
          Range_Domain_Maximum: 4.461
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for trasnponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.257
          Range_Domain_Maximum: 3.83
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for trasnponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.308
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4832
          Range_Domain_Maximum: 5818
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6234
          Range_Domain_Maximum: 8323
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 67.7
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
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te_Definitdive2414ln.htm010066400202500000012000000737640733561173500142330ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2414 (line)

Alvin 1991 Dive 2414 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2414 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2414
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 899

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2414_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2414_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2414_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 1058
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 1118
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9454
          Range_Domain_Maximum: 47.9506
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.1
          Range_Domain_Maximum: -129.096
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4794.9
          Range_Domain_Maximum: 5100
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5729.8
          Range_Domain_Maximum: 6305.4
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.394444
          Range_Domain_Maximum: 0.653472
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2005.4
          Range_Domain_Maximum: 2225.2
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 928
          Range_Domain_Maximum: 1541
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 95.5
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2005.4
          Range_Domain_Maximum: 2225.2
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 3.2
          Range_Domain_Maximum: 358.6
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.757
          Range_Domain_Maximum: 2.518
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.064
          Range_Domain_Maximum: 1.744
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.603
          Range_Domain_Maximum: 5.99
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 2.955
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4793
          Range_Domain_Maximum: 5098
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5728
          Range_Domain_Maximum: 6306
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1
          Range_Domain_Maximum: 53.75
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

Top





METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
ribute_Defindive2415ln.htm010066400202500000012000000735700733561171400142240ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2415 (line)

Alvin 1991 Dive 2415 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2415 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Publication_Information:
            Publication_Place:
            Publisher:
          Online_Linkage:
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2415
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher:
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation:
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then into GIS.
      Source_Used_Citation_Abbreviation:
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation:
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service:

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 666

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SPATIAL_REFERENCE_INFORMATION


  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution:
          Ordinate_Resolution:
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis:
      Denominator_of_Flattening_Ratio:

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2415_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2415_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2415_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 846
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 964
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.949
          Range_Domain_Maximum: 47.9505
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.099
          Range_Domain_Maximum: -129.094
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4918.9
          Range_Domain_Maximum: 5271.1
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6121.6
          Range_Domain_Maximum: 6291.3
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.377604
          Range_Domain_Maximum: 0.600521
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2005
          Range_Domain_Maximum: 2235.7
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 903.45
          Range_Domain_Maximum: 1424.45
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 89.8
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2005
          Range_Domain_Maximum: 2235.7
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.6
          Range_Domain_Maximum: 354.3
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.715
          Range_Domain_Maximum: 2.049
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time reocrded for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.539
          Range_Domain_Maximum: 1.715
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 10.596
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.415
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4825
          Range_Domain_Maximum: 5266
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6120
          Range_Domain_Maximum: 6292
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 79.69
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
te_Label: Z_fix Attribute_Definition: Sub Z fix Attribute_Definition_Source: Attribute_Domain_dive2417ln.htm010066400202500000012000000737030733561166300142270ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2417 (line)

Alvin 1991 Dive 2417 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2417 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Publication_Information:
            Publication_Place:
            Publisher:
          Online_Linkage:
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2417
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher:
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation:
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation:
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service:

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 759

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SPATIAL_REFERENCE_INFORMATION


  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution:
          Ordinate_Resolution:
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis:
      Denominator_of_Flattening_Ratio:

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2417_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2417_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2417_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 981
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 1140
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9489
          Range_Domain_Maximum: 47.9503
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.099
          Range_Domain_Maximum: -129.095
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4915.2
          Range_Domain_Maximum: 5171.1
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6109.6
          Range_Domain_Maximum: 6272.9
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.378993
          Range_Domain_Maximum: 0.643056
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2008.2
          Range_Domain_Maximum: 2219.6
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 905.45
          Range_Domain_Maximum: 1526
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 81
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2008.2
          Range_Domain_Maximum: 2219.6
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.3
          Range_Domain_Maximum: 352.2
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.738
          Range_Domain_Maximum: 2.023
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.468
          Range_Domain_Maximum: 1.684
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.273
          Range_Domain_Maximum: 5.898
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.418
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4914
          Range_Domain_Maximum: 5169
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y positon in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6110
          Range_Domain_Maximum: 6274
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 165.36
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
_Label: Z_fix Attribute_Definition: Sub Z fdive2418ln.htm010066400202500000012000000737000733561163700142260ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2418 (line)

Alvin 1991 Dive 2418 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2418 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Publication_Information:
            Publication_Place:
            Publisher:
          Online_Linkage:
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2418
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Native_Data_Set_Environment:
    Arc/Info coverage format

Top





DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher:
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation:
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation:
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service:

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 603

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SPATIAL_REFERENCE_INFORMATION


  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution:
          Ordinate_Resolution:
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis:
      Denominator_of_Flattening_Ratio:

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2418_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2418_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2418_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 828
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 858
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9469
          Range_Domain_Maximum: 47.9519
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.099
          Range_Domain_Maximum: -129.094
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4903.4
          Range_Domain_Maximum: 5271.4
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5895.7
          Range_Domain_Maximum: 6449
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.45191
          Range_Domain_Maximum: 0.650347
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2010.5
          Range_Domain_Maximum: 2218.4
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1050.45
          Range_Domain_Maximum: 1536.3
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 62.1
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2010.5
          Range_Domain_Maximum: 2218.4
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 359.7
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.442
          Range_Domain_Maximum: 2.327
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.259
          Range_Domain_Maximum: 1.892
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.224
          Range_Domain_Maximum: 5.825
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.309
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4902
          Range_Domain_Maximum: 5262
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5895
          Range_Domain_Maximum: 6452
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1
          Range_Domain_Maximum: 87.24
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
Label: Z_fix Attribute_Definition: Sub Z fix dive2419ln.htm010066400202500000012000000736050733561161700142310ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2419 (line)

Alvin 1991 Dive 2419 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2419 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Publication_Information:
            Publication_Place:
            Publisher:
          Online_Linkage:
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2419
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher:
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation:
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation:
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation:
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service:

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 828

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SPATIAL_REFERENCE_INFORMATION


  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution:
          Ordinate_Resolution:
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis:
      Denominator_of_Flattening_Ratio:

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2419_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2419_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2419_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 1089
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 1120
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9472
          Range_Domain_Maximum: 47.9502
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.1
          Range_Domain_Maximum: -129.095
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4851.1
          Range_Domain_Maximum: 5227.4
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5931.3
          Range_Domain_Maximum: 6254.4
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.381076
          Range_Domain_Maximum: 0.639931
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2001.1
          Range_Domain_Maximum: 2232.5
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 908.45
          Range_Domain_Maximum: 1521.3
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 55
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2001.1
          Range_Domain_Maximum: 2232.5
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.4
          Range_Domain_Maximum: 359.9
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.754
          Range_Domain_Maximum: 2.285
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.308
          Range_Domain_Maximum: 1.662
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.661
          Range_Domain_Maximum: 4.079
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.361
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4849
          Range_Domain_Maximum: 5226
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5931
          Range_Domain_Maximum: 6256
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 46.74
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
abel: Z_fix Attribute_Definition: Sub Z fix Attribute_Definition_Source: Attributdive2420ln.htm010066400202500000012000000737050733561157300142230ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2420 (line)

Alvin 1991 Dive 2420 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2420 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Publication_Information:
            Publication_Place:
            Publisher:
          Online_Linkage:
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2420
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher:
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation:
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation:
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service:

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 737

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SPATIAL_REFERENCE_INFORMATION


  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution:
          Ordinate_Resolution:
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis:
      Denominator_of_Flattening_Ratio:

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2420_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2420_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2420_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 929
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 988
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9486
          Range_Domain_Maximum: 47.9498
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.101
          Range_Domain_Maximum: -129.097
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4719.8
          Range_Domain_Maximum: 5019.4
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6086.7
          Range_Domain_Maximum: 6210.5
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.407465
          Range_Domain_Maximum: 0.639583
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2018.4
          Range_Domain_Maximum: 2205.5
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 946.45
          Range_Domain_Maximum: 1521
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 59.4
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2018.4
          Range_Domain_Maximum: 2205.5
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.3
          Range_Domain_Maximum: 359.9
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.943
          Range_Domain_Maximum: 2.192
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.479
          Range_Domain_Maximum: 1.709
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.946
          Range_Domain_Maximum: 5.765
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.375
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2868
          Range_Domain_Maximum: 5014
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6086
          Range_Domain_Maximum: 6458
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 116.12
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
bel: Z_fix Attribute_Definition: Sub Z fidive2421ln.htm010066400202500000012000000736720733561155200142240ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2421 (line)

Alvin 1991 Dive 2421 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2421 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Publication_Information:
            Publication_Place:
            Publisher:
          Online_Linkage:
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2421
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher:
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation:
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation:
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service:

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 483

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SPATIAL_REFERENCE_INFORMATION


  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution:
          Ordinate_Resolution:
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis:
      Denominator_of_Flattening_Ratio:

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2421_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2421_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2421_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 549
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 691
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9482
          Range_Domain_Maximum: 47.9503
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.099
          Range_Domain_Maximum: -129.096
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4934
          Range_Domain_Maximum: 5144
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6037.1
          Range_Domain_Maximum: 6268.4
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.385243
          Range_Domain_Maximum: 0.545139
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2004.1
          Range_Domain_Maximum: 2221
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 914.45
          Range_Domain_Maximum: 1305
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 100.2
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2004.1
          Range_Domain_Maximum: 2221
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 359.9
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.762
          Range_Domain_Maximum: 2.128
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.41
          Range_Domain_Maximum: 1.695
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.726
          Range_Domain_Maximum: 4.492
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 2.954
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4932
          Range_Domain_Maximum: 5141
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6036
          Range_Domain_Maximum: 6269
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 51.37
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
bute_Label: Z_fix Attribute_Definition: Sub Z fix Alvin 1991 Dive 2422 (line)

Alvin 1991 Dive 2422 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2422 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Publication_Information:
            Publication_Place:
            Publisher:
          Online_Linkage:
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2422
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher:
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation:
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation:
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service:

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 541

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SPATIAL_REFERENCE_INFORMATION


  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution:
          Ordinate_Resolution:
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis:
      Denominator_of_Flattening_Ratio:

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2422_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2422_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2422_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 636
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 839
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9476
          Range_Domain_Maximum: 47.9503
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.1
          Range_Domain_Maximum: -129.097
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4850.6
          Range_Domain_Maximum: 5052.4
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5968.6
          Range_Domain_Maximum: 6267.5
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.392188
          Range_Domain_Maximum: 0.586806
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2011.5
          Range_Domain_Maximum: 2209.2
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 924.45
          Range_Domain_Maximum: 1405
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 100.2
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2011.5
          Range_Domain_Maximum: 2209.2
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.7
          Range_Domain_Maximum: 359.8
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.801
          Range_Domain_Maximum: 2.258
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.36
          Range_Domain_Maximum: 1.695
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.137
          Range_Domain_Maximum: 4.015
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 2.933
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 3724
          Range_Domain_Maximum: 5049
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5214
          Range_Domain_Maximum: 6268
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 129.89
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
bel: Z_fix Attribute_Definition: Sub Z fix dive2423ln.htm010066400202500000012000000735770733561147200142330ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2423 (line)

Alvin 1991 Dive 2423 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2423 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Publication_Information:
            Publication_Place:
            Publisher:
          Online_Linkage:
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2423
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher:
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation:
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation:
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation:
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service:

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 528

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SPATIAL_REFERENCE_INFORMATION


  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution:
          Ordinate_Resolution:
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis:
      Denominator_of_Flattening_Ratio:

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2423_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2423_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2423_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 635
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4
          Range_Domain_Maximum: 802
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.948
          Range_Domain_Maximum: 47.9633
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.1
          Range_Domain_Maximum: -129.091
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4789.5
          Range_Domain_Maximum: 5477.6
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6011.6
          Range_Domain_Maximum: 7711.8
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.340104
          Range_Domain_Maximum: 0.525347
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2034.7
          Range_Domain_Maximum: 2226.1
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 809.45
          Range_Domain_Maximum: 1236.3
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 100.4
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2034.7
          Range_Domain_Maximum: 2226.1
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5.4
          Range_Domain_Maximum: 352.5
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.426
          Range_Domain_Maximum: 2.219
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.415
          Range_Domain_Maximum: 3.597
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for tranponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 4.008
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.8
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4788
          Range_Domain_Maximum: 5484
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6011
          Range_Domain_Maximum: 7717
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 182.58
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
e_Label: Z_fix Attribute_Definition: Sub Z fix Attribute_Definition_Source: Attribute_Ddive2446ln.htm010066400202500000012000000737200733561241400142230ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2446 (line)

Alvin 1991 Dive 2446 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2446 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Publication_Information:
            Publication_Place:
            Publisher:
          Online_Linkage:
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2446
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date:
          Title:
          Edition:
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place:
            Publisher:
          Other_Citation_Details:
          Online_Linkage:
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media:
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date:
            Ending_Date:
        Source_Currentness_Reference:
      Source_Citation_Abbreviation:
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher:
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator:
              Publication_Date:
              Title:
              Publication_Information:
                Publication_Place:
                Publisher:
              Online_Linkage:
      Source_Scale_Denominator:
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation:
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation:
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation:
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service:

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 638

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SPATIAL_REFERENCE_INFORMATION


  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution:
          Ordinate_Resolution:
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis:
      Denominator_of_Flattening_Ratio:

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2446_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2446_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2446_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 748
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 880
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9478
          Range_Domain_Maximum: 47.9503
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.1
          Range_Domain_Maximum: -129.095
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4854.1
          Range_Domain_Maximum: 5228.4
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5993.8
          Range_Domain_Maximum: 6273
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.406771
          Range_Domain_Maximum: 0.610417
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2016.7
          Range_Domain_Maximum: 2232.6
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 945.45
          Range_Domain_Maximum: 1439
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 80.1
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2016.7
          Range_Domain_Maximum: 2232.6
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.7
          Range_Domain_Maximum: 359.1
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.8
          Range_Domain_Maximum: 3.5
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.881
          Range_Domain_Maximum: 2.157
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.704
          Range_Domain_Maximum: 2.216
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 13.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 11.082
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source:
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.382
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4854.9
          Range_Domain_Maximum: 5229.6
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5991.4
          Range_Domain_Maximum: 6271.4
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source:
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 52.17
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service:
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
te_Definition_Source: Attribute_Dodive2447ln.htm010066400202500000012000000740700733561334100142230ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2447 (line)

Alvin 1991 Dive 2447 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2447 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2447
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 472

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2447_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2447_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2447_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 544
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 622
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9478
          Range_Domain_Maximum: 47.9493
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.1
          Range_Domain_Maximum: -129.097
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4847.2
          Range_Domain_Maximum: 5084.7
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5990.1
          Range_Domain_Maximum: 6160
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.386458
          Range_Domain_Maximum: 0.560417
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2009.6
          Range_Domain_Maximum: 2219.9
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 916.3
          Range_Domain_Maximum: 1327
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 91.5
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2009.6
          Range_Domain_Maximum: 2219.9
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.1
          Range_Domain_Maximum: 354.1
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.8
          Range_Domain_Maximum: 2.5
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for tranponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 4.029
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.958
          Range_Domain_Maximum: 2.246
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.371
          Range_Domain_Maximum: 1.577
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 3.026
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 7111.6
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 6616
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 47.75
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
: Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2009.6 Range_Domain_Maximum: 2219.9 Attribute: Attribute_Label: Fix1 Attribute_Definition: Name of fix Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: Character Field Attribute: Attribudive2448ln.htm010066400202500000012000000740750733561361200142320ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2448 (line)

Alvin 1991 Dive 2448 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2448 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2448
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin). 
	4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 642

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2448_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2448_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2448_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 741
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-defined feature number
      Attribute_Definition_Source: User-assigned
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 870
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9465
          Range_Domain_Maximum: 47.9494
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.099
          Range_Domain_Maximum: -129.097
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4898.3
          Range_Domain_Maximum: 5037.4
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5852.4
          Range_Domain_Maximum: 6171.3
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.404687
          Range_Domain_Maximum: 0.632465
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2002.6
          Range_Domain_Maximum: 2222.7
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 942.45
          Range_Domain_Maximum: 1510.45
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 73.5
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2002.6
          Range_Domain_Maximum: 2222.7
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.2
          Range_Domain_Maximum: 359.9
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.8
          Range_Domain_Maximum: 2.3
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.759
          Range_Domain_Maximum: 5.922
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.956
          Range_Domain_Maximum: 2.35
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.162
          Range_Domain_Maximum: 1.6
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 3.003
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 6197.7
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Avin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 7385.1
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 62.89
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2002.6 Range_Domain_Maximum: 2222.7 Attribute: Attribute_Label: Fix1 Attribute_Definition: Name of fix Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: Character Field Attribute: Attributedive2449ln.htm010066400202500000012000000740020733561357100142250ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2449 (line)

Alvin 1991 Dive 2449 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2449 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2449
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 607

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2449_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2449_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2449_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 747
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 824
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9463
          Range_Domain_Maximum: 47.9493
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.101
          Range_Domain_Maximum: -129.098
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4744.9
          Range_Domain_Maximum: 4986.9
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5821.7
          Range_Domain_Maximum: 6164.3
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.410243
          Range_Domain_Maximum: 0.602083
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2003.4
          Range_Domain_Maximum: 2204.6
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 950.45
          Range_Domain_Maximum: 1427
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.9
          Range_Domain_Maximum: 100.4
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2003.4
          Range_Domain_Maximum: 2204.6
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.3
          Range_Domain_Maximum: 350.6
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 5.934
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.974
          Range_Domain_Maximum: 2.502
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.255
          Range_Domain_Maximum: 1.593
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 2.957
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 3876.8
          Range_Domain_Maximum: 5011
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 3253.5
          Range_Domain_Maximum: 6819.3
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 161.85
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
ition: Sub Z fix Attribute_Definition_Source: Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2003.4 Range_Domain_Maximum: 2204.6 Attribute: Attribute_Label: Fix1 Attribute_Definition: Name of fix Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: Character Field Attribute: Attdive2450ln.htm010066400202500000012000000737740733561355100142320ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2450 (line)

Alvin 1991 Dive 2450 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2450 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2450
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format
 
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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 723

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2450_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2450_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2450_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 984
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 3
          Range_Domain_Maximum: 1048
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9478
          Range_Domain_Maximum: 47.9513
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.099
          Range_Domain_Maximum: -129.096
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4880.4
          Range_Domain_Maximum: 5115.7
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5991.7
          Range_Domain_Maximum: 6385.9
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.394097
          Range_Domain_Maximum: 0.636632
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2005.4
          Range_Domain_Maximum: 2221.5
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 927.3
          Range_Domain_Maximum: 1516.45
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 100.4
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2005.4
          Range_Domain_Maximum: 2221.5
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.1
          Range_Domain_Maximum: 351.1
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 12.279
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.612
          Range_Domain_Maximum: 2.214
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.36
          Range_Domain_Maximum: 1.832
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 2.96
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4066
          Range_Domain_Maximum: 5102
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4791
          Range_Domain_Maximum: 7455
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 21.15
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
te_Ddive2451ln.htm010066400202500000012000000740400733561353200142150ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2451 (line)

Alvin 1991 Dive 2451 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2451 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2451
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 643

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2451_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2451_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2451_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 734
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1
          Range_Domain_Maximum: 733
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9658
          Range_Domain_Maximum: 47.9731
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.092
          Range_Domain_Maximum: -129.084
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5445.6
          Range_Domain_Maximum: 5984.4
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 7992.9
          Range_Domain_Maximum: 8800
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.392014
          Range_Domain_Maximum: 0.61441
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2006.3
          Range_Domain_Maximum: 2210.1
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 924.3
          Range_Domain_Maximum: 1444.45
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 100.6
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2006.3
          Range_Domain_Maximum: 2210.1
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.9
          Range_Domain_Maximum: 359.9
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.807
          Range_Domain_Maximum: 1.828
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.238
          Range_Domain_Maximum: 2.308
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 12.542
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.551
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5447
          Range_Domain_Maximum: 5988
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 7991
          Range_Domain_Maximum: 8801
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 47.97
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
tribute_Definition_Source: Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2006.3 Range_Domain_Maximum: 2210.1 Attribute: Attribute_Label: Fix1 Attribute_Definition: Name of fix Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: Character Field Attribute: Attribdive2452ln.htm010066400202500000012000000737650733561351000142270ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2452 (line)

Alvin 1991 Dive 2452 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2452 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2452
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 606

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2452_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2452_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2452_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 809
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 947
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9478
          Range_Domain_Maximum: 47.9496
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.1
          Range_Domain_Maximum: -129.098
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4841.3
          Range_Domain_Maximum: 4975.5
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5991.9
          Range_Domain_Maximum: 6190.7
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.382639
          Range_Domain_Maximum: 0.603472
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2008.7
          Range_Domain_Maximum: 2214
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 911
          Range_Domain_Maximum: 1429
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.2
          Range_Domain_Maximum: 38.2
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2008.7
          Range_Domain_Maximum: 2214
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.2
          Range_Domain_Maximum: 359.4
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.279
          Range_Domain_Maximum: 4.022
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.959
          Range_Domain_Maximum: 2.201
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.366
          Range_Domain_Maximum: 1.623
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.276
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4062
          Range_Domain_Maximum: 4955
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6001
          Range_Domain_Maximum: 7291
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 93.21
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
ibute_Defindive2453ln.htm010066400202500000012000000740310733561346500142240ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2453 (line)

Alvin 1991 Dive 2453 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2453 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2453
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 713

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2453_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2453_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2453_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 824
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1
          Range_Domain_Maximum: 823
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9442
          Range_Domain_Maximum: 47.9511
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.101
          Range_Domain_Maximum: -129.096
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4768
          Range_Domain_Maximum: 5105
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5597.2
          Range_Domain_Maximum: 6360
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.394097
          Range_Domain_Maximum: 0.604861
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2019.2
          Range_Domain_Maximum: 2230.8
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 927.3
          Range_Domain_Maximum: 1431
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 100.2
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2019.2
          Range_Domain_Maximum: 2230.8
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.1
          Range_Domain_Maximum: 356.7
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0 
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 6.015
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.683
          Range_Domain_Maximum: 2.715
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.877
          Range_Domain_Maximum: 1.813
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 2.969
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 3890
          Range_Domain_Maximum: 5323
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4339
          Range_Domain_Maximum: 7507
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 83.4
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
Attribute_Definition_Source: Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2019.2 Range_Domain_Maximum: 2230.8 Attribute: Attribute_Label: Fix1 Attribute_Definition: Name of fix Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: Character Field Attribute: Attributedive2454ln.htm010066400202500000012000000737660733561344600142420ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2454 (line)

Alvin 1991 Dive 2454 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2454 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2454
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format
  
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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 571

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2454_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2454_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2454_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 683
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 738
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9476
          Range_Domain_Maximum: 47.9502
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.1
          Range_Domain_Maximum: -129.095
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4844.2
          Range_Domain_Maximum: 5208.8
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5969.7
          Range_Domain_Maximum: 6264.2
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.384722
          Range_Domain_Maximum: 0.557639
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2008.2
          Range_Domain_Maximum: 2230.3
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 914
          Range_Domain_Maximum: 1323
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 100.2
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2008.2
          Range_Domain_Maximum: 2230.3
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.2
          Range_Domain_Maximum: 359.7
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 5.955
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.759
          Range_Domain_Maximum: 2.262
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.335
          Range_Domain_Maximum: 1.689
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.562
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4085
          Range_Domain_Maximum: 5360
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4659
          Range_Domain_Maximum: 7156
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 85.85
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
ribute_Defdive2455ln.htm010066400202500000012000000737700733561342400142320ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2455 (line)

Alvin 1991 Dive 2455 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2455 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2455
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 388

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2455_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2455_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2455_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 468
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 927
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9492
          Range_Domain_Maximum: 47.951
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.1
          Range_Domain_Maximum: -129.097
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4836.2
          Range_Domain_Maximum: 5044.1
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6151.7
          Range_Domain_Maximum: 6347.1
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.45191
          Range_Domain_Maximum: 0.665972
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2011.4
          Range_Domain_Maximum: 2210.6
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1050.45
          Range_Domain_Maximum: 1559
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.5
          Range_Domain_Maximum: 100.3
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2011.4
          Range_Domain_Maximum: 2210.6
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2.3
          Range_Domain_Maximum: 358.3
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.716
          Range_Domain_Maximum: 1.952
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.73
          Range_Domain_Maximum: 2.015
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 14.773
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.288
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4837
          Range_Domain_Maximum: 5045
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 6150
          Range_Domain_Maximum: 6345
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 24.04
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top
_Definitdive2456ln.htm010066400202500000012000000737670733561340100142340ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2456 (line)

Alvin 1991 Dive 2456 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2456 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2456
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format
 
Top





DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 536

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2456_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2456_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2456_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 611
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 891
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9478
          Range_Domain_Maximum: 47.9607
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.1
          Range_Domain_Maximum: -129.092
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4796.7
          Range_Domain_Maximum: 5422.9
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5991
          Range_Domain_Maximum: 7430.4
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.387326
          Range_Domain_Maximum: 0.594792
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2017.8
          Range_Domain_Maximum: 2217.4
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 917.45
          Range_Domain_Maximum: 1416.3
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 43
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2017.8
          Range_Domain_Maximum: 2217.4
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4.4
          Range_Domain_Maximum: 359.8
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.968
          Range_Domain_Maximum: 2.155
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.396
          Range_Domain_Maximum: 2.255
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 10.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 14.887
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 14.304
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4797
          Range_Domain_Maximum: 5424
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5988
          Range_Domain_Maximum: 7435
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 71.05
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
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te_Definidive2459ln.htm010066400202500000012000000737620733561335700142440ustar00sdroddastaff00000400000176 Alvin 1991 Dive 2459 (line)

Alvin 1991 Dive 2459 (line)

Table of Contents



IDENTIFICATION_INFORMATION


  Citation:
    Citation_Information:
      Originator: John Delaney
      Originator: Russ McDuff
      Originator: Marv Lilley
      Publication_Date: 20010329
      Title: Alvin 1991 Dive 2459 (line)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: University of Washington
        Publisher: Sarah Rodda
      Other_Citation_Details:
      Online_Linkage: HTTP://bromide.ocean.washington.edu/gis/active.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      A multi-sensor survey was conducted in 1991 along the
      Endeauvour Segment. These data contain point files that
      include information related to navigation, vehicle
      attitude, the environment, and vehicle status. The
      processed point data was converted into ArcInfo format and
      cleaned of fliers. Line coverages were constructed from the
      point files.
    Purpose:
      These data were created to aid in the desription and
      discovery of the workings of the hydrothermal vent system
      found on the Endeavour Segment of the Juan de Fuca Ridge.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1991
        Ending_Date: 1991
    Currentness_Reference: Ground Conditions
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 492531.0625
      East_Bounding_Coordinate: 492774.0938
      North_Bounding_Coordinate: 5310534.5000
      South_Bounding_Coordinate: 5310264.0000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Alvin
      Theme_Keyword: Dive tracks
      Theme_Keyword: 2459
      Theme_Keyword: 1991
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Main endeavour field
  Access_Constraints:
    None
  Use_Constraints:
    The positional accuracy of the data contained in this
    coverage depends primarily on the accuracy of the
    navigation employed during data collection. These data were
    originally collected using an accoustic transponder network
    registered to GPS with Selective Availability (SA) on, and therefore
    may be variable.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Native_Data_Set_Environment:
    Arc/Info coverage format

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DATA_QUALITY_INFORMATION


  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Chain-node topology.
  Logical_Consistency_Report:
    The locational information for these data are related to
    positional accuracy.
  Completeness_Report:
    Navigational data were analyzed for erroneous fixes, i.e.
    points that were obvious outliers were removed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        These data were logged by the DSRV Alvin using an in-hull
        navigation system. This system uses the travel time of
        accoustic energy from the submersible to the transponders
        and back to the submersible (rather than
        submersible-transponder-ship). The accuracy is
        +/- 1.0 meters.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        Vertical control was provided by the pressure sensor and
        altimeter readings on the submersible. The vertical
        accuracy is +/- 0.5 meters.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
          Publication_Date: 
          Title: 
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Other_Citation_Details:
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: McDuff
          Originator: Delaney
          Originator: Robigou
          Originator: Lilley
          Publication_Date: 19910000
          Title: Alvin 1991 dives floppy disk archive
          Edition: 1.0
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: University of Washington
            Publisher: 
          Other_Citation_Details:
            Rawdata files were extracted from the floppy disk archive
            to a hard drive on a local UW system
            (bromide.ocean.washington.edu) on 12/95. For further
            information about the rawdata, refer to the REAMDE file at bromide.ocean.washington.edu\elcapitan\end91.
          Online_Linkage: bromide.ocean.washington.edu\\elcapitan\end91
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 
      Type_of_Source_Media: floppy disk archive
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1991
            Ending_Date: 1991
        Source_Currentness_Reference: current
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
        1. The submersible was navigated with a long-baseline
        transponder net. The sub's position was monitored by
        surface controllers and by the pilot and scientists in the
        sphere with the in-sub program.
        2. Positions were reported in ALVIN X/Y (meters)
        coordinates based on a grid which has its origin at 47.8939
        degrees latitude and -129.16451667 degrees longitude (to
        the south and west of the transponders and dive region for each
        transponder net).
        3. ALVIN positions were then converted into Lat/Long
        measurements with the program
        "xy2ll.kf"(\\bromide.ocean.washington.edu\usr\local\bin).
        4. Data were then entered into GIS.
      Source_Used_Citation_Abbreviation: 
      Process_Date: 19990000
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: University of Washington
            Contact_Person: Russ McDuff
          Contact_Position: Principal Investigator
          Contact_Address:
            Address_Type: Mailing address
            Address: University of Washington, School of Oceanography, Box 357940
            City: Seattle
            State_or_Province: Washington
            Postal_Code: 98195
            Country: USA
          Contact_Voice_Telephone: (206)543-3058
          Contact_Facsimile_Telephone: (206)374-2861
          Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
          Hours_of_Service: 

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SPATIAL_DATA_ORGANIZATION_INFORMATION


  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete Chain
      Point_and_Vector_Object_Count: 493

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SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number:  9
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -129.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: WGS84
      Ellipsoid_Name: WGS84
      Semi-major_Axis: 
      Denominator_of_Flattening_Ratio: 

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ENTITY_AND_ATTRIBUTE_INFORMATION


  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: dive2459_ln.aat
      Entity_Type_Definition: Arc Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Fnode#
      Attribute_Definition: From-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Tnode#
      Attribute_Definition: To-node identifier of linear feature
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Lpoly#
      Attribute_Definition: Internal number of polygon to left of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Rpoly#
      Attribute_Definition: Internal number of polygon to right of arc
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: Length of line
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2459_ln#
      Attribute_Definition: Internal feature number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Dive2459_ln-id
      Attribute_Definition: Feature identification number
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          User Defined
    Attribute:
      Attribute_Label: Area
      Attribute_Definition: Area of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Perimeter
      Attribute_Definition: Perimeter of polygon
      Attribute_Definition_Source: Software generated
      Attribute_Domain_Values:
        Unrepresentable_Domain:
          Software computed
    Attribute:
      Attribute_Label: Linkid
      Attribute_Definition: Point id that line segment is linked to. There
	is a discrepancy between the # of line segments and the # of points due to 	
	the point to line function length tolerance (i.e. very small segments 
	between close points are not created). 
      Attribute_Definition_Source: Automated from point to line function
	(Spatial Movement Analysis extension in ArcView).
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 594
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: User-assigned feature number
      Attribute_Definition_Source: User-defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2
          Range_Domain_Maximum: 601
    Attribute:
      Attribute_Label: X_lat
      Attribute_Definition: Decimal latitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 47.9617
          Range_Domain_Maximum: 47.9633
    Attribute:
      Attribute_Label: Y_lon
      Attribute_Definition: Decimal longitude
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -129.092
          Range_Domain_Maximum: -129.091
    Attribute:
      Attribute_Label: X_fix
      Attribute_Definition: Sub X fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5435.6
          Range_Domain_Maximum: 5468.6
    Attribute:
      Attribute_Label: Y_fix
      Attribute_Definition: Sub Y fix in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 7541.2
          Range_Domain_Maximum: 7714.4
    Attribute:
      Attribute_Label: Dectime
      Attribute_Definition: Decimal time (to 15 significant decimal places)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.397917
          Range_Domain_Maximum: 0.536806
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Actual time (HH:MM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Z_fix
      Attribute_Definition: Sub Z fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2011.4
          Range_Domain_Maximum: 2200.3
    Attribute:
      Attribute_Label: Fix1
      Attribute_Definition: Name of fix
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Nav1
      Attribute_Definition: Name of navigation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: D_time
      Attribute_Definition: Pseudo decimal time (HHMM:SS)
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 933
          Range_Domain_Maximum: 1253
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Sub altitude off sea floor
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 33.6
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Sub depth
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2011.4
          Range_Domain_Maximum: 2200.3
    Attribute:
      Attribute_Label: Head
      Attribute_Definition: Sub heading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2.1
          Range_Domain_Maximum: 359.2
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Water temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Inter
      Attribute_Definition: Interrogate frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Track
      Attribute_Definition: Tracking frequency
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lbl_0_f
      Attribute_Definition: Long baseline frequency for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 0
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_0_t
      Attribute_Definition: Long baseline time recorded for transponder 0
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.367
          Range_Domain_Maximum: 0.521
    Attribute:
      Attribute_Label: Lbl_1_f
      Attribute_Definition: LBL frequency for trasnponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 11.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 1
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_1_t
      Attribute_Definition: LBL time recorded for transponder 1
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.975
          Range_Domain_Maximum: 1.077
    Attribute:
      Attribute_Label: Lbl_2_f
      Attribute_Definition: LBL frequency for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 9.0
          Enumerated_Domain_Value_Definition: Frequency for transponder 2
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_2_t
      Attribute_Definition: LBL time recorded for transponder 2
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 14.804
    Attribute:
      Attribute_Label: Lbl_3_f
      Attribute_Definition: LBL frequency for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 7.5
          Enumerated_Domain_Value_Definition: Frequency for transponder 3
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Lbl_3_t
      Attribute_Definition: LBL time recorded for transponder 3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 0.242
    Attribute:
      Attribute_Label: X
      Attribute_Definition: Sub pre-fix X position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 5436
          Range_Domain_Maximum: 5469
    Attribute:
      Attribute_Label: Y
      Attribute_Definition: Sub pre-fix Y position in Alvin X/Y grid
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 7544
          Range_Domain_Maximum: 7713
    Attribute:
      Attribute_Label: Latd
      Attribute_Definition: Latitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Latm
      Attribute_Definition: Latitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lond
      Attribute_Definition: Longitude degrees
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Lonm
      Attribute_Definition: Longitude minutes
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: N/A
    Attribute:
      Attribute_Label: Plength
      Attribute_Definition: Segment length
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.5
          Range_Domain_Maximum: 20
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:

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DISTRIBUTION_INFORMATION


  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Resource_Description:
    University of Washington, School of Oceanography Mid-ocean
    Ridge Processes Group.
  Distribution_Liability:
    No liability is assumed by the distributor.
  Custom_Order_Process:
    Inquire about special distribution services.

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METADATA_REFERENCE_INFORMATION


  Metadata_Date: 20010405
  Metadata_Review_Date: 20010405
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: University of Washington
        Contact_Person: Russ McDuff
      Contact_Position: Primary Investigator
      Contact_Address:
        Address_Type: Mailing address
        Address: University of Washington, School of Oceanography, Box 357940
        City: Seattle
        State_or_Province: Washington
        Postal_Code: 98195
        Country: USA
      Contact_Voice_Telephone: (206)543-3058
      Contact_Facsimile_Telephone: (206)374-2861
      Contact_Electronic_Mail_Address: mcduff@ocean.washington.edu
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
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Attribute_Def