R.V. Franklin Seasoar data-some information about the files.
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There are six files, three from cruise FR9/92 in Nov/Dec 1992
and three from cruise FR1/93 in Jan/Feb 1993.  The files are
named driftn.dat, where n is 1,2,3 for FR9/92 and 4,5,6 for FR1/93.

The format is self explanatory.  A header includes a note about the
navigation data.  After the header follows a series of 'casts', each
cast represents the data collected over about a 4 minute period.  The
date, time and position of the mid-point of the period are indicated at
the top of each tabulation.  No water depth information is included.
Note that for drift1 no navigation data is available (GPS malfunction
during that leg of the cruise).  The time is given in two formats,
firstly in unix time (number of seconds since 0000, 1/1/1970 UTC) and
secondly as day-month-year hour:minute referenced to Eeastern Standard
Time (EST).  The tabluated data for each cast represents a 2 dBar average
centred on even pressures, except that the value for 0 dBar is the average 
of all data between the surface and 1 dBar.  Units for pressure,
temperature, salinity, sigma-T are dBar, C, psu, kg/m3 respectively.
No dissolved oxygen data was collected.  Where no data is available the
Not a Number (NaN) identifier is used.


Compressed versions of files drift1.dat, drift2.dat and drift3.dat have
been ftp'd along with this message on 2/sep/94.   cheers, Jeff Butt.

