1.  NAME

  detide - Detide ADCP data

  2.  USAGE

  detide

  3.  DESCRIPTION

  Detide reads ADCP currents from ascii files and corresponding
  barotropic tidal components. It rewrites the ADCP files with detided
  currents. Tidal data is interpolated to ADCP positions along the
  specified synchro column, and substracted to ADCP U-V pairs. Currents
  must be in m/s. If this is not the case, specify conversion factors
  different from 1.0.

  Detided data are written as is, in the same unit as on input in the
  output file.

  4.  PARAMETERS

  The following parameters must be edited:

     adcp_file
        File containing ADCP data.

     tide_file
        File containing barotropic tidal components at ADCP times and
        positions.

     adcp_col
        Cell array containg 2-elements vectors specifying the columns of
        U-V pairs data in the ADCP data file.

     tide_col
        A two elements vector specifying the columns of U-V barotropic
        tidal pairs in the tide file.

     synchro
        A two element vector specifying the columns to use for
        synchronization of ADCP and tide data. The first element refers
        to the column in the ADCP file,the second is for the tide file.

     adcp_scale
        Factor to get ADCP data in m/s.

     tide_scale
        Factor to get tide currents in m/s.

     out_file
        Name of output file for detided ADCP data.

  5.  AUTHORS

  Pierre Jaccard, Geophysical Institute, University of Bergen, 1999