SAC Help

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

Email address
Moderated by
IRIS Webmaster
Related tags
SAC Software SAC
Login to manage your subscriptions

Active Message Threads for April 2017

Prateek Mondal
2017-04-24 12:58:10
I have two shell script. One for pick up information and other one is for update those information to sac header. I am facing problem when passes the arguments to the shell script for updating sac header. Please help. Thanks in advance Below one is which finds the information from a list of events #!/bin/bash while IFS=' ' read -r ev[$i] || [[ -n "${ev[$i]}" ]]; do # Reads event list echo ${ev[$i]} | cut -c1-12 # shows events i... [more]
No replies
Hello, I have a simple script that does the number rounding: SAC> sc rround.bsh &1,depmen& 0.52 Unfortunately in my ver 101.6a the "sc to" feature to get the shell output into a bb variable is not implemented: SAC> sc rround.bsh &1,depmen& 0.52 SAC> SAC> sc to var rround.bsh &1,depmen& sh: to: command not found I would like to use the rounding result (0.52) inside the SAC. How do I capture the sc output into a bb variable in my case? If I have a different number saved in a local file, ... [more]
No replies
2017-04-20 00:19:10 - 2017-04-20 23:22:48
> Hello, > By a default, a SAC plot displays the station name and channel (along with the date and time). > Is there a way to also display the 2-letter station network name on a plot? > Thanks, > Igor
Maria Luíza Cardoso
2017-04-19 22:13:28 - 2017-04-20 20:27:17
Hello, Does anyone know how can I get both real and imaginary part of a sac file? And its complex conjugate? Best regards, Maria.
Athanasopoulos George
2017-04-20 04:53:01 - 2017-04-20 17:43:19
Dear Sir, Thank you for approving our request for SAC program. We have already dowloaded and unzipped the program in our PC (core i7-2600 CPU @ 3.40GHz, RAM 16GB, 64-bit). Our PC's operational system is Windows 7. We have read the instructions accompanying the software; we are encountering, however, difficulties, in installing and running the program in the Windows 7 environment. Could you please help us in this regard? Regards, G.A. Athanasopoulos -------------------------------... [more]
2017-04-18 17:46:59 - 2017-04-19 13:54:18
Hi, I have downloaded the waveform and Response poles and zeros in SAC format from JWEED. I removed the instrument response using command " transfer from polezero subtype ./resp.pz to vel freqlimits 0.001 0.002 10 20" in SAC. Initially in sac header I have IDEP= unknown and after removing response it changed to IDEP= VELOCITY (NM/SEC). I have instrument properties in resp.pz file INPUT UNIT : M, OUTPUT UNIT: COUNTS, INSTGAIN : 1.500000e+03 (M/S),SENSITIVITY ... [more]
Raquel Bonilla Alba
2017-04-18 03:14:53 - 2017-04-18 06:09:06
Hello, I have a problem when I try to install sac.
Maria Luíza Cardoso
2017-04-16 13:36:38 - 2017-04-16 21:11:11
Hi everyone, How can I perform deconvolution in the frequency domain by dividing the spectra of the numerator by the spectra of the denominator? Best regards, Maria.
Maria Luíza Cardoso
2017-04-12 15:59:57 - 2017-04-16 12:59:54
Hello everyone, Is there a way to save my sac file in frequency domain, not in time domain? Best regards, Maria.
2017-04-12 22:45:34 - 2017-04-13 05:09:48
Hello, I´m Laura, a student of physics at Universidad Complutense de Madrid, and I need help with the software sac, the program does not initialize (see the picture) , and I can´t work with it. In this picture you can see "20.79 over 3 days" and I don´t know what does this means, I have decompressed the file and installed by the way you told me and I can´t do anything, I don´t know what is the problem. I used linux (ubuntu) 64 bits Thank you, Laura
2017-04-04 22:34:53 - 2017-04-04 23:20:17
Hello all, When I use the transfer command of SAC, I am confused which data type did I get finally. For example, for broadband seismometers we used more often now, the recorded data type is usually the velocity, if I have the instrument response file PZs, I could type: trans from polezero subtype $pzfile to none freq 0 0.001 8 10. Here is the question: while my data is velocity, after 'TO NONE', the output data is displacement? Or just remain the type as original data, velocity. In other wo... [more]
2017-04-03 10:57:34
Hello, I need the following sac ascii format. At the moment I forget how to convert this format from the SAC binary format. If you know the procedure, tell me. Thanks in advance.Shutian ------------------------------------------------------------------------- STA=YAK  LAT=  0.00  LON=  0.00  ELEV=   0.0(M) COMP=LHZ  RATE=0.1 TIME=2012,302,03:04:08.000 The complex transfer functions T are calculated by:   T(S)=DS*A0*(S-Z01)*(S-Z02)*...*(S-Zm)/((S-P01)*(S-P02)...(S-Pn))   where:S=i*Omega, O... [more]
No replies
Page built 05:28:22 | v.6a0a3e16