RAD 'Re-navigating ALVIN Data' (ver. 1.1) has been designed during the first leg of the Mixing Zephyrs research cruise. Its aim is to effectively process and recrunch Alvin's in-hull navigation data.

The version 1.1 of RAD performs essentially four tasks:

- Extraction, sorting and rearranging of the raw, in-hull navigation data read in the Alvin log files. A partial listing of the raw extracted data (time, x, y, depth, altitude and heading) can be obtained and printed to a file by using the second option of the main menu.

- Filtering of:
- the anomalous, in-hull computed fixes, allowing the production of a reference dive track. This has proven very useful for rapid, first order processing of the dive videos and transcripts.
- the anomalous travel times for posterior recrunching using a parallel fortran inversion code.

- Crunching of the travel times using pre-surveyed transponder nets.

- Graphical edition of the data obtained (production of dive tracks and depth or altitude profiles).

By the RAD tough dudes :

Christian B. Parker. UW Oceanography. cbp@ocean.washington.edu
Abdellah S.M. Cherkaoui. UW Oceanography. abdul@ocean.washington.edu