Cruise Track Files

     For each cruise, an ASCII cruise track file is provided with
the filename xxxxx.cru where xxxxx is the SAC_ID.  The first two
columns are longitude and latitude in decimal degrees.  The last
column is decimal day for the year in which the cruise began.
If you do not have access to a package to plot these, let me
know and I can provide either the software or PostScript files
of the cruises.