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POST PROCESSING
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See .docs/processing/cdip_processing.txt for info on our regular processing.

1. .pmt/csh_pm_tester

   See .docs/inhouse_software/pm_tester.txt for program description.
   
   This program primarily checks data consistency between runs for a
   single station once a day. All checks are heuristic and only check 
   data in parameter files. The following table lists all checks:

                Hs  Tp  Dp  Depth  Ta  Pres Seatmp
   spikes       X   X   X   X      X   X    X
   range        X   X   X   X      X   X    X
   same value   X   X   X   X      X   X    X
   dropouts     X
   spread               X
   random               X


   Description of tests:

   a. spikes - checks for values abruptly different from surrounding values.
      Designed for Hs originally, but parameters can be set for other 
      variables.
   b. range - checks for values within specified range. Should be done
      by our processing editor, but this is another check on the processing.
   c. same value - a.k.a. consecutive value test. Checks if a value has
      remained the same for an excessive period of time.
   d. dropouts - guess at record frequency then compares number of records
      recieved to expected number of records for the specified time period.
   e. spread - very heuristic, tries to determine if the direction looks
      too spread out by drawing a smooth line through the dp values
      and calculating the median of the absolute difference of the smoothed
      and original directions.
   f. random - very heuristic, sorts dp into bins and sums the top two modes.
      If the top two modes do not account for most of the directions, then
      the directions are considered random.
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