SAC Help

A forum for SAC users to exchange ideas and ask questions about SAC usage, installation, portability, etc.

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Active Message Threads for September 2013

George Sand França
2013-09-29 05:11:45
HELP DISPLAY PHASE PICKS (Avinash Nayak) Dear Avinash I didn't know if you get answer, but following below the answer for your question. Just to do this SAC > ch kt0 P SAC > wh Best Regard -- George Sand França Observatório Sismológico Universidade de Brasília 61 31071297 Now at the University of Arizona Citando > Send sac-help mailing list submissions to >         sac-h… [more]
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Mohit Agrawal
2013-09-26 18:15:37
Hello All, Is these any way to change the sample rate of seed data files? Any command? Please let me know. -Mohit
Januka Attanayake
2013-09-24 10:05:07 - 2013-09-24 16:42:33
Greetings,  I am just wondering as to why the users are not allowed to download SAC soon after they fill in the necessary details. Is SAC not a freely distributed software? Why is there a "processing" time? In my view downloading SAC should be a less bureaucratic process than it is at present. Thank you. Sincerely, Januka Attanayake URL:
Milton Plasencia
2013-09-23 17:44:08 - 2013-09-23 20:28:20
Hi, I was working with the sac header for a bunch of files, when i want writing the KINST variable, i see that it is only 8 characters long, so my instrument description is cut, i want write digitizer+sensor numbers (0681_T3305), so, is possible change the KINST from 8 to 16 characters? or, generate other variable (KSENS) to put the sensor number? or what other header variable is fine to use? Thanks a lot, * * * * * * * * * * * * * * * * * * * * * * * Milton P. PLASENCIA LINARES Centro di… [more]
Mohit Agrawal
2013-09-19 17:00:46
Hi All, I want to compute surface wave dispersion curves from cross correlation of ambient noises between seismic stations. For this purpose, I need to perform time domain normalization via "running-absolute mean-normalization". This method computes the running average of absolute value of the waveform in a normalization time window of fixed length and weights the waveform at the center of the window by the inverse of this average. This should have the effect of removing the large events and n… [more]
No replies
2013-09-18 22:48:49
Hello Can you tell me how can I save the modifications done on my signal to another file. Best regards Researcher in seismology CRAAG Bp 63 route de l'observatoire Bouzaréah Algiers tel (213)21 90 44 54..57 fax (213)21 90 44 58
No replies
firdaus firdaus via LinkedIn
2013-09-18 15:40:08
LinkedIn ------------ firdaus firdaus requested to add you as a connection on LinkedIn: ------------------------------------------ Sac Help, I'd like to add you to my professional network on LinkedIn. - firdaus Accept invitation from firdaus firdaus… [more]
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siti latifah
2013-09-15 06:13:13
No replies
2013-09-01 18:43:53 - 2013-09-10 22:27:39
Hi, I have problem when try to install SAC using sac-101.6_source.tar.gz. My system use PC-BSD 9.1 Release amd64 (its similiar with Freebsd 9.1Release amd64)... The problem is it cannot build libedit and I get this error: vi.c:920:74: error: macro "__weak_reference" requires 2 arguments, but only 1 given vi.c: In function 'get_alias_text': vi.c:920: error: expected declaration specifiers before '__weak_reference' vi.c:925: error: expected '=', ',', ';', 'asm' or '__attribute__' before '… [more]
Badr Rumaih
2013-09-06 17:27:33 - 2013-09-07 01:37:56
Does anyone know how to convert SEGY data to SAC format? Thanks, Best, B. W. Rumaih SWP, Stanford
2013-09-02 17:22:16 - 2013-09-04 15:51:32
Hi, I have analysed my data and gotten the teleseismic events, i would like to would like use IterDecon but i am unable, is the anyone with any written scripts on how to do this? Help Bruce
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