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 May 2011
Ralph Archuleta
I would like to get a pdf of the SAC manual. Where can I download it?
--
Ralph J. Archuleta
Professor and Chair
Department of Earth Science
& Earth Research Institute
University of California, Santa Barbara
Santa Barbara, CA 93106-9630
Phone: (805) 893-8441
FAX: (805) 893-2314
Email: ralph@eri.ucsb.edu or archuleta@geol.ucsb.edu
Please note new email address: ralph@eri.ucsb.edu
Institute for Crustal Studies merged with another Institute at UCSB
Replies
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Re: Pdf of SAC Manual - Steve Gao - 2010-11-01 16:37:43
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Re: Pdf of SAC Manual - Januka Attanayake - 2010-11-01 15:13:29
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Re: Pdf of SAC Manual - Brian Savage - 2010-11-01 22:55:39
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Re: Pdf of SAC Manual - Jorge Luis de Souza - 2011-05-31 21:43:37
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urvashi keswani
Hello,
This is Urvashi. I have installed a version of Fedora on my laptop and need
help with installing sac on it. I have extracted the sac folder into
/usr/local/ and have changed the file ./bashrc for setting the environment
variables according to the instructions given in the readme folder. However
I am not able to understand how to start the installation (which executable
to run and using what commands) and also , should i run in form the
/usr/local/sac/bin folder or from somewhere else. I…
[more]
Replies
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Re: Need help for installing sac - Milton Plasencia - 2011-05-26 18:14:57
Corrie
Hi,
In SAC I would like to plot two files on top of each other (overlay) and in
the same window make picks (Tn) to be saved to the header of one or both
files. I have been attempting this with commands p2 and ppk, but these
produce separate windows. Is it possible to simultaneously plot two files
in a plot window AND pick in that plot window?
In more detail, I am plotting the spectra of the signal on top of the noise
and I would like to mark the intersection of the two. My work-around has
…
[more]
No replies
Ashish
Hi all
I have problem with sac compiling.
I tried to compile sac (V 101.2) source on fedora 13.
./configure
make
i got error:
##########################################################
Must remake target `co/getline.o'.
gcc -DHAVE_CONFIG_H -I. -I../inc -I../inc -I../libedit/include -c
-o co/getline.o co/getline.c
Putting child 0x08b9e4c8 (co/getline.o) PID 2878 on the chain.
Live child 0x08b9e4c8 (co/getline.o) PID 2878
co/getline.c: In function getline:
co/getline.c:36: error: a…
[more]
No replies
Januka Attanayake
Hi,
I am running the following macro and it was ok at first. My computer crashed while I was running it due to a technical issue unrelated to SAC. There after sac started spitting out the following error. I have no clue as to why the macro worked perfectly alright before the reboot and why it is failing now. Any infor. is much appreciated. I am using SAC 101.3b
Thanks!
Januka.
Macro
====
setbb iff 0
DO FILE WILD *.SAC
evaluate to iff %iff + 1
* when iff < 2 (i.e. reading only 1 file…
[more]
Replies
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Re: stack smashing - Brian Savage - 2011-05-19 23:28:26
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Re: stack smashing - Januka Attanayake - 2011-05-19 20:42:58
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Re: stack smashing - Arthur Snoke - 2011-05-20 00:20:13
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Alex
Hi all
I have problem with sac compiling.
I'm going to use sac ability running of matlab scripts, so I tried to
compile sac source
./configure --with-matlab=/usr/local/bin/
glnx86
make
make install
after I got working sac program except matlab scripts ability
I need your help
Thank you
--
Regards,
Alex Ganiev,
software engineer
Ukraine,
Institute of Geophysics
aganiev@gmail.com
algan@ukr.net
No replies
Mehmet Ergin
(no body)
No replies
Devajit Hazarika
Dear SAC Users
I use SAC software for computation of teleseismic Receiver Functions used for crustal structure study.
Can anyone guide me how to do "moveout" correction before stacking
the Receiver Functions for different epicentral distance and back
azimuth?
Is there any option in Signal Stacking Subprocess of SAC ?
I will be thankful If anybody can guide me in this regard.
sincerely
D. Hazarika
No replies
Dear SAC Users
I use SAC software for computation of teleseismic Receiver Functions used for crustal structure study.
Can anyone guide me how to do "moveout" correction before stacking the Receiver Functions for different epicentral distance and back azimuth?
Is there any option in Signal Stacking Subprocess of SAC ?
I will be thankful If anybody can guide me in this regard.
sincerely
D. Hazarika
No replies
Rakotoarisaona Hasiniaina
Dear all,
I am trying to set some times and date in a SAC header. So far I did the
following:
SAC> ch O GMT 2006 001 14 34 01 23
SAC> wh
Although all of these change do not appear with "lh" command. Also, when I am
doing the picking and write it into "hpf", I have got no error but when open
the HPF file and it is empty.
Is anyone can help me in this matter?
(PS: I have been converted my data from ascii to sac using the fortran code
amp2sac in this link http://web.utah.edu/thorne/soft…
[more]
Replies
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Re: cannot add sac header - Milton Plasencia - 2011-05-11 19:23:03
Ivan
Dear Colleague,
I hope that I am at the right address to launch my question.
I was using SAC polezero option recently to remove the instrument
response from my data and to add it to synthetics.
However, I realized that this option is acting as a 2-pass acausal
filter. AS the actual seismometer filters the ground motion as 1-pass
causal filter, it seems to me that it is impossible to recover actual
ground motion by using this option.
It is not very obvious with very band limited data, but i…
[more]
Replies
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Re: Instrument response removal - Arthur Snoke - 2011-05-06 22:11:51
Elkins, Bailey E
Hi all,
I'm trying to run a macro that will produce correlations for all possible station pairs from a file list. I'm attempting to do this with a blackboard variable and a while loop. Each time I run the macro, it works fine for the first iteration of the while loop. The second iteration produces a segmentation fault after the correlate command is executed, but before it changes to my write directory.
I have experienced this problem while running SAC 101.4 on 2 RedHat Linux workstatio…
[more]
