NAME

     psnmo  - performs non-hyperbolic NMO for P-S converted  wave
     data.

SYNOPSIS

     psnmo [ -NInputFileName ] [ -OOutputFileName ] [ -Vpikvpik ]
     [  -Gpikgpik  ] [ -nsStartTrace ] [ -neEndTrace ] [ -rsStar-
     tRecord ] [ -reEndRecord ] [ -sStartTime ] [ -eEndTime  ]  [
     -nmofNmoFlag ] [ -V ] [ -?  or  -h ]

DESCRIPTION

     psnmo performs non-hyperbolic NMO for  converted-wave  data.
     It reads in P-S converted-wave seismic data (in SIS format),
     the corresponding P-wave velocity picks, and the correspond-
     ing  Vs/Vp  picks. (These are written in pick files the same
     as Vp, but multiplied by 1000 so that they can be  read  and
     written  as  integers,  as required by most of the pick file
     formats.) It can also be used to  do  standard  P-wave  NMO.
     (See Geoscience Technology Bulletin F95G42 for more informa-
     tion).

  Command line arguments
     -N InputFileName  [default: stdin]
          The input data should be a Common Source  Point  (CSP),
          or  a  Common Conversion Point (CCP), or a Common Depth
          Point (CDP) gathered dataset.

     -O OutputFileName  [default: InputFileName.psnmo]
          The output is a (non-hyperbolic) NMO corrected  dataset
          for CCPSTK or other processing.

     -Vpik vpik  [No default]
          The corresponding P-wave velocity pick file. All of the
          pick-file  formats commonly in use at Amoco (XSD, TDFN,
          Disco HANDVEL, USP) are supported by  psnmo.  The  pick
          file format is automatically detected.

     -Gpik gpik  [No default]
          Vs/Vp velocity pick file provided by CVD.
           NOTE: if nmof=2, Gpik will be ignored

     -ns StartTrace  [default: 1]
          The start trace number.

     -ne EndTrace  [default: last trace of record]
          The end trace number.

     -rs StarRecord  [default: 1]
          Start record number.

     -re EndRecord  [default: last record]
          End record number.

     -V   Enter the command line argument '-V' to get  additional
          printout.

     -nmof NMOFlag  [default = 1]
                     =1, non-hyperbolic
                     =2, hyperbolic with V provided in Vpik
                     =3, hyperbolic with V = sqrt(g) Vp
                     where g given by the pick file in  Gpik  and
          Vp given by the pick file in Vpik

     -? or -h
          Enter the command line argument '-?'  or  -h  or  -help
          to  get  online help.  The program terminates after the
          help screen is printed.

BUGS

     There probably are some bugs waiting to be found.

SEE ALSO

     cvd(1), psvspec(1), ccpbin(1) , ccpstk(1)

AUTHOR

     Yaohui Zhang

COPYRIGHT

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