/******************************************************************************

  FILE:  refabsbt.cnt

         This control file is used with the refabsbt program
         to calculate ship displacement from both fix data and
         bottom track velocity data in a CODAS ADCP database,
         as averaged between consecutive fixes.

  INPUT:  1. text file of navigation fixes, already edited
             (as extracted from CODAS database by ubprint then edited)
          2. text file of bottom track velocities
             (as extracted from CODAS database by lst_btrk)
  OUTPUT: text file with the following columns:
          1. time of the second fix (in decimal days)
          2. zonal displacement between consecutive fixes (in meters)
          3. meridional displacement between consecutive fixes (in meters)
          4. zonal displacement calculated from bottom track (in meters)
          5. meridional displacement calculated from bottom track (in meters)
          6. zonal velocity cumulated over the gap
          7. meridional velocity cumulated over the gap
          8. length of gap (in minutes)
-------------------------------------------------------------------------------
  CONTROL FILE STRUCTURE:

  fix_file_type:    < simple | HIG >               { format of input fix file }
  reference_file:   < input bottom track velocity file from lst_btrk >
  fix_file:         < input file of position fixes >         { time, lon, lat }
  output:           < output filename >
  year_base=        < base year for decimal day conversions >

  ensemble_length=  < no. of seconds in ensemble >              { usually 300 }
  gap_tolerance=    < maximum seconds discrepancy between profile & fix time >
                                                 { allow a little, perhaps 60 }
-----------------------------------------------------------------------------*/

  fix_file_type:    simple
  reference_file:   ademorot.btm
  fix_file:         ../../nav/ademo.ags
  output:           ademo.ref
  year_base=        1993

  ensemble_length=  300
  gap_tolerance=    60

/*****************************************************************************/