SAC Help

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

This list has moved to https://groups.google.com/a/earthscope.org/g/sac-community.
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sac-help@lists.ds.iris.edu
Type
Help

Help lists are for submitting support questions. Anyone can post a question for SAGE (or another team) to answer.

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Active Message Threads for December 2020

Cuiyan Kong
How to solve the problem of ' X11 Screen does not exist'
2014-05-27 23:31:12 - 2020-12-18 20:29:14
Hi, I am learning SAC, when I input 'plot', the sentence of ' X11 Screen does not exist' shows up and SAC will quit automatically. May I know how to solve the problem? I am using the remote window connecting to the Linux system, does it matter the ' plot' command and X11 screen? I appreciate your help. Thanks Tracy
Replies
Sachin Tiwari
Need Help
2020-12-08 16:37:16
Dear Sac Users, I would like to work on seismic anisotropy using harmonic decomposition of a receiver functions data set. For this purpose, I need a code of harmonic decomposition. I will be very grateful for your help. Thank you in advance. Regards, Sachin
No replies
sanjay Singh Negi
Regarding rotation of seismogram for right handed system
2020-10-27 10:19:37 - 2020-12-04 10:28:58
Hi Sac users, I have OBS record that follows the right-handed system in which H2 component is 90 degree counter-clockwise of H1. Horizontal component data file are as following: 2018.128.01.00.45.420.X.sac ---> East component 2018.128.01.00.45.420.Y.sac ----> North component 2018.128.01.00.45.420.Z.sac ----> Vertical component The orientation correction angle is 80 degree. For rotation, I use the following scheme: sac>> read 2018.128.01.00.45.420.Y.sac 2018.128.0… [more]
Replies
Steve Gao
libsac.a and sacio.a for Ubuntu 18.04.4 LTS
2020-12-03 03:51:01 - 2020-12-03 18:41:31
Dear all, We are in the process of migrating to a new Linux system running Ubuntu 18.04.4 LTS, and the old libsac.a and sacio.a refuse to work with gfortran. Any hints? Thanks in advance! Sincerely, Stephen Gao The error message: /usr/bin/ld: /home/sgao/soft/SAC/lib/sacio.a(getsmsg.o): relocation R_X86_64_32S against undefined symbol `kmmsg' can not be used when making a PIE object; recompile with -fPIC And yes, I indeed tried recompiling with -fPIC, but it still did not work. … [more]
Replies
BARRY HIRSHORN
Re: Qualifying to download SAC.
2020-12-03 09:45:16 - 2020-12-03 14:23:31
Thank you Brian, Yes, my request to download the software was denied. Thanks for your help! Cheers, Barry Typed on a teeny keyboard. >> On Dec 3, 2020, at 5:43 AM, Brian Savage (via IRIS) <sac-help-bounce@lists.ds.iris.edu> wrote: > Dear Barry > > The only reason that SAC has a request for download, instead of a direct download, is that SAC is under export restrictions to embargoed countries. This is required by the Licensing agreement between LLNL (DOE) and IRIS. > > You should be… [more]
Replies
BARRY HIRSHORN
Qualifying to download SAC.
2020-12-02 19:51:06 - 2020-12-03 11:55:47
Dear All, I was wondering how one qualifies to be able to download SAC. I’ve been using SAC for over 25 years while employed under the EQ Hazards program at the USGS, and subsequently while at the NOAA/NWS/Pacific Tsunami Center, in Hawaii. I continue to perform research in Seismology, using SAC. (For example, see some of my references ** below). How should I go about qualifying to be able to continue using SAC? Thanks you! Cheers, Barry Hirshorn ** Some of my work for which I have … [more]
Replies
sanjay Singh Negi
Re: Covertir de miniseed a sac
2020-12-03 06:58:05
Dear Daphne, I understand your concern. Just go with this command mseed2sac -i *.mseed *.mseed will consider all the files to convert while -i converts them individually. Best, Sanjay On Thu, Dec 3, 2020, 03:17 Daphne Sagel Aguilar (via IRIS) < sac-help-bounce@lists.ds.iris.edu> wrote: > Hello friends, I have a question, I have files in miniseed and I want to > convert to sac, I use the code mseed2sac, but I go one by one. I saw the > option to write: > mseed2sac - i * mseed > Bu… [more]
No replies
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