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                              PROCESS UMULT
                              ------- -----

Document Date: 15 May 1996

PROCESS UMULT multiplies user given points to every specified seismic
trace.  The user may specify the start time of the multiply.

A common use of process umult is to apply a different gain than
allowed in process gains.

Spatial interpolation is not available.

Each parameter list must be terminated with the word END.  The entire
set of UMULT parameters must be terminated by the word END.

THE PARAMETER DICTIONARY
--- --------- ----------

PTS   - A list of points to multiply the seismic trace by.  The values
        must be separated by a blank, tab, or new line.  When the
        values are given in an exponential format, positive exponents
        must have a + rather than a blank.
        Required. e.g. pts 1 2 3 4 5 6 7 8 9 10 11

FNO   - The first shot (or rp) to be multiplied.  Shot (rp) numbers
        must increase monotonically.
        Preset = 0

LNO   - The last shot (rp) number to multiply.  LNO must be larger
        than FNO in each list and must increase list to list.
        Preset = 999999999

STIME - The start time, in seconds, of the first point of each trace
        to be multiplied.  i.e. the time of the first point in PTS.
        Preset = the delay of the trace . e.g. stime 1

END    - Terminates each parameter list.


Written and copyrighted (c) by:
Paul Henkart, Scripps Institution of Oceanography, May 1996
ALL RIGHTS RESERVED.
Go to the list of seismic processes.      Go to SIOSEIS introduction.