NAME

     gli2disco - converts output of GLI3D to a DISCO  file  suit-
     able for HEADPUT.

SYNOPSIS

     gli2disco [ -Nntap ] [ -Ootap ] [ -Ccorr ] [ -S ] [ -R  ]  [
     -B ] [ -Q ] [ -iseediseed ] [ -? ]

DESCRIPTION

     gli2disco reads a report file computed by GLI3D (*.ele) that
     contains  weathering  statics  corrections. The user selects
     the type of static value desired. The types  include:  total
     (long+short+elev), drift (long + short), long  (long-period)
     , short (short-period ), elev (elevation ), and  elev_remove
     (remove   elevation).   We  write  these corrections to a 3-
     column data file for input into  the  DISCO  data  base.  We
     write  a  separate  file for source and receiver correction.
     Consequently, you execute GLI2DISCO 2x,  once  for  sources,
     and  once  for  receivers.  Any  missing  receiver  group is
     linearly interpolated from its nearest neighbors.


     GLI2DISCO gets both its data and its parameters from command
     line  arguments.  These arguments specify the input, output,
     the type of static desired, the station (shot or  receiver),
     and the format type.

  Command line arguments
     -Nntap
          Enter the input GLI file name (*.ele) immediately after
          typing -N.

     -Ootap
          Enter the output DISCO file name immediately after typ-
          ing -O.

     -Ccorr
          Static correction options: total (default)
                                     drift
                                     long
                                     short
                                     elev
                                     elev_remove

     -Stype
          Type -S for source statics.

     -Rtype
          Type -R for receiver statics.

     -Bbig
          Type -B if the statics model contains 3 or more layers.

     -Qold
          Type -Q for GLI3D  input  originating  from  the  batch
          GLI3D  program;  otherwise  GLI2DISCO assumes the input
          came from the newer interactive GLI3D code.

     -iseediseed
          Enter a seed value to add  to  all  statics  file  data
          values  in  order  to  prevent  any  naturally occuring
          zeros.  The default is -7777 which works for all  cases
          unless the value 7777 exists in the table.

     -?   Enter this (or '-?' if you are running in  c-shell)  to
          get  online  help.   The  program  will terminate after
          printing this.

BUGS

     Unknown

AUTHOR

     Don Wagner, APR, x3281.

COPYRIGHT

     copyright 2001, Amoco Production Company
               All Rights Reserved
          an affiliate of BP America Inc.