PROCS
PROCS is the method of describing the order of processing. The process
names must be listed IN THE ORDER OF DESIRED PROCESSING. The list must
start with PROCS and is terminated with END. The process names must be
separated by blanks or tabs. The process names may be upper or lower
case.
The available processess as of August 2009 are:
Several pre-PROCS directives may be given. The directive MUST
be given BEFORE the PROCS directive.
EDIT indicates that the SIOSEIS parameters will be checked for
syntax and validity without any data being processed.
NOECHO indicates that most of the ASCII output (stdout) will be
supressed.
DEBUG will cause the name of each process to be printed just
before it is entered.
REALTIME indicates that process DISKIN will will wait for additional
trace. PLOT and SEGDDIN could be made realtime - contact the
author for further information
- acorr - Autocorrelation.
- agc - Automatic Gain Control.
- avenor
- Average amplitude normalize.
- cat
- Concatenate traces or shots.
- cofilt
- Dan Lizarralde's Coherency filter.
- debias
- Bias removal.
- decon
- Linear predictive deconvolution.
- despike
- Spike removal.
- diskin
- Input of SEG-Y traces from disk.
- diskox
- Output of traces to an SEG-Y formatted disk file. x=a,b,c,...,j
- dmo
- Dip MoveOut.
- fdfmod
- Finite-Difference Forward Modelling.
- fdmigr
- Finite Difference Migration.
- filter
- Time varying zero phase bandpass filter, Butterworth filter.
- fkfilt
- Frequency-wavenumber filter.
- fkmigr
- Frequency-wavenumber migration.
- fkshift
- Phase shift in the frequency-wavenumber domain (depth migration)
- fk2tx
- Frequency-wavenumber to time distance domain transformation.
- flaten
- Flatten the seismic section to a reference time.
- f2t
- Frequency to time domain transformation.
- gains
- Apply various time dependent gains.
- gather
- Trace collection according to geometry.
- geom
- Field geometry description.
- grdout
- Write a GMT format 1 grdfile.
- header
- Manipulate the SEG-Y headers.
- history
- Append a history file.
- logstx
- Log Stretch and destretch.
- mix
- Running or record sum of adjacent traces.
- mute
- Zeroing of data.
- nmo
- Normal moveout, movein, and slant moveout corrections.
- plot
- Record section plot. Sun rasterfiles, most Versatec and
Calcomp electrostatic plotters, various thermal plotters,
HP large format DesignJets.
- prout
- Printer dump of traces.
- psmigr
- Dan Lizarralde's Phase Shift Depth Migration (Split-Step Migration).
- resamp
- Resample time domain data.
- sadd
- Scalar add.
- segddin
- SEG-D disk file input.
- seg2in
- SEG-2 disk file input.
- shift
- Time shift.
- smute
- Surgical mute.
- sort
- Generates tables for sorting SEG-Y disk files through diskin.
- stack
- Sum traces of a gather.
- stk
- Median stack, range varying stack
- swell
- Swell removal.
- syn
- Spike trace generation.
- tp2tx
- Tau-p to Time-distance domain transformation.
- tredit
- Trace edit and spike removal.
- tx2fk
- Time-distance to frequency-wavenumber domain transformation.
- tx2tp
- Time-distance to tau-p domain transformation.
- t2d
- Time to depth conversion.
- t2f
- Time to frequency transformation.
- uadd
- User controlled addition to the seismic trace.
- udecon
- User controlled Weiner filter design.
- ufiltr
- User given impulse response filter.
- umult
- User controlled multiplication with the seismic trace.
- velan
- Constant velocity or semblance velocity analysis
- wbt
- Water bottom time description.
- weight
- Trace weighting.
- xcorr
- Cross-correlation.
- xstar
- Convert EdgeTech XSTAR data to SEG-Y amplitude data.
EXAMPLE: procs input geom wbt gather nmo stack output decon filter plot end
NOTE:
- The process' parameters do not have to be in the same order
as they are in the PROCS list.
- The process' parameters may be given even if the process is
not applied or in the PROCS list.
- A process may be applied to the data more than once, however
the process' parameters should be given only once.
- Duplicate process' parameters cause the last set to be used.
- The PROCS list should be the first set of parameters.
Copyright (C) 1981: The Regents of the University of California
ALL RIGHTS RESERVED