[Seisunix] [spam-high] Re: convert seismic unix files
eisenberg at teec.de
Tue Apr 10 00:48:42 MDT 2018
Am 09.04.2018 um 15:30 schrieb jahiro damian miranda calvet:
> hi everyone,
> I have a problem that I would like to share with you, I need to compare
> different seismograms traces from different files, for example, seismogam 3
> of the file name1.su and seismogram 7 of the file name2.su, when I use
> susum I have one error because ns are different. I thought to convert to
> ascii and compare in gnuplot, there it is possible, but the X axis is not
> the same that SU, isn't the time values.
> - How I can export from *.su to *.ascii with the time colum too? not only
> amplitud, I would like to convert many colum that I need.
try suascii bare=4 (gnuplot)
SUASCII - print non zero header values and data in various formats
suascii <stdin >ascii_file
bare=0 print headers and data
=1 print only data
=2 print headers only
=3 print data in print data in .csv format, e.g. for Excel
=4 print data as tab delimited .txt file, e.g. for GnuPlot
=5 print data as .xyz file, e.g. for plotting with GMT
> - It's possible to normalize all amplitudes from different files? if
> possible, what is the command?
Use suwind/suresamp to make the files same length/sampling for comparison
> And the last one,
> - How I can plot many traces in one figure with different names? for
> example, I plot trace 3 from name1.su, trace 67 from name2.su and trace 5
> from name3, and put the name like: time vs. Tr1 Tr2 Tr3 axes.
suwind skip=2 count=1 < name1.su > selected_traces.su
suwind skip=66 count=1 < name2.su >> selected_traces.su
suwind skip=4 count=1 < name2.su >> selected_traces.su
suxwigb < selected_traces.su label2="Trace" label1="Time"
resrtict to first N samples of the traces
suwind skip=4 count=1 < name2.su itmax=N >> selected_traces.su
or resample to common sampling, eg to have 2s at 4ms sampling:
suwind skip=4 count=1 < name2.su | suresamp nt=501 dt=0.004 >>
> Thanks a lot for any tips
> seisunix mailing list
> seisunix at mailman.mines.edu
> Unsubscribe: seisunix-unsubscribe at mailman.mines.edu
hope that gets you started,
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 473 bytes
Desc: OpenPGP digital signature
More information about the seisunix