# info_nav

##

Last updated Fri Nov 19 13:01:05 1999

Get navigation information from ADCP files

## 1. USAGE

info_nav [options] format

## 2. DESCRIPTION

This Perl utility reads ADCP data files and prints information about navigation. It is especially useful for grouping the adequate ADCP profiles with their corresponding CTD sections.

Name of navigation files are expected to be listed on the standard input. Hence, a pipe or input redirection is required. Output is written to standard output. The specified output format determines what information to read and how to print it. Possible keywords are:

file_time_range

  Print the time range spanned by each input file.

transect_time_range

  Print the time range spanned by each transect. This format expects the file name convention of TRANSECT.

## 3. OPTIONS

The following options are implemented:

-t type

  Specify the input files type and how to get the navigation data. Possible values are:

  gga

    Input file is an NMEA file, and the navigation information should be taken from the GGA string.

## 4. AUTHOR

Pierre Jaccard, Geophysical Institute, University of Bergen, 1999.

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