DECADE Drifter data

The data files will be organized into three directories.  Each directory will
correspond to a survey on the R/V Cape Henlopen.

The first survey is in the following directory:

survey1-0304    from 2003-04-14 to 2003-04-16

Files in each directory follow a naming convention.  Each file begins with the
method used to determine its location (i.e. arg or GPS) followed by the drifter
ID number (i.e. 27105).


The format for GPS?????.dat files is the following:

Month  Day  Year   Hour  Minute  Second  Longitude Latitude

The format for arg?????.dat files is the following:

Longitude   Latitude   YearDay   Hour   Minute

All times are in UTC.  The first entry is the time and location of the 
deployment.  The last entry is the time and location of the recovery.
Note that YearDay 104 = April 14.

I edited the data to remove obviously spurious data and included only those 
locations that corresponded to the actual sampling period, not during
times when the drifter was at Lewes or aboard the ship.

2003-04-21 CET
