NAME
mgd77info - Get information about MGD77 files
SYNOPSIS
mgd77info leg-ids -I|L [ -V ]
DESCRIPTION
mgd77info reads <legid>.mgd77 files and produces a single record of
information about each cruise specified. The information includes
beginning and end time, total track distance in km, min and max
regional extent, and the total number of geophysical observations.
Optionally, choose instead to see the original MGD77 header section.
If you need to know which tracks are crossing through a given region
and what kinds of geogphysical observations are available, consider
using the x2sys tools to set up a tracks index data base.
leg-ids
Can be one or more MGD77 8-character cruise identifiers. To give
a list of names, use ‘cat cruises.lis‘. The ".mgd77" extension
will automatically be appended, if needed. Cruise files will be
looked for in the current directory and in all directories
listed in $MGD77_DIR/MGD77_paths.txt.
-I Give a one-line summary for each cruise listed, OR
-L Give the long MGD77 header section for each cruise listed.
OPTIONS
No space between the option flag and the associated arguments
-V Selects verbose mode, which will send progress reports to stderr
[Default runs "silently"].
EXAMPLES
To get one-line summary information about the cruises 01010047.mgd77
and 01010008.mgd77, try
mgd77info 01010047 01010008 -I > listing.lis
To see the MGD77 header for cruise 01010047.mgd77, run
mgd77info 01010047 -L
SEE ALSO
mgd77list(GMTMANSECTION), mgd77track(GMTMANSECTION) x2sys_init(GMTMAN-
SECTION)
REFERENCES
Wessel, P., and W. H. F. Smith, 2004, The Generic Mapping Tools (GMT)
version 4 Technical Reference & Cookbook, SOEST/NOAA.
Wessel, P., and W. H. F. Smith, 1998, New, Improved Version of Generic
Mapping Tools Released, EOS Trans., AGU, 79 (47), p. 579.
Wessel, P., and W. H. F. Smith, 1995, New Version of the Generic Map-
ping Tools Released, EOS Trans., AGU, 76 (33), p. 329.
Wessel, P., and W. H. F. Smith, 1995, New Version of the Generic Map-
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