These files are weekly temperature fields from observations 
made by the NOAA 11 and 12 polar orbiting satellites.  
The file naming convention is:
       
              thseXXYYZZ.fis

where XX = week number in 1992
      YY = jo (jour) day
           nu (nuit) night
           ma (matin) morning
      ZZ = 11  NOAA-11
           12  NOAA-12     

These files are: I1 pixels, 752 pixels/row, 652 rows.  Each pixel
has a spatial resolution of 0.02 degrees.


The units are: temperature [degree C] (offset by 10 deg.)