A forum for SAC users to exchange ideas and ask questions about SAC usage, installation, portability, etc.
- Email address
- sac-help@lists.ds.iris.edu
- Type
-
Help
Help lists are for submitting support questions. Anyone can post a question for IRIS (or another team) to answer.
Announcement lists are for sending a one-way message to a wide audience. Anyone can post a message — only subscribe if you want to start receiving this type of announcement.
Discussion lists are for back-and-forth exchanges among a smaller audience. Only subscribers can post (most of the time), and subscriptions have to be approved.
- Moderated by
- IRIS Webmaster
- Related tags
- SAC Software SAC
Active Message Threads for April 2021
Félix Rodrigo Rodríguez Cardozo
Dear all,
One seismogram I am working with has the baseline shifted (down figure1). I
tried to fix it as usual: rmean; trend. However, the axis amplitude
remained exaggerated in comparison to the maximum amplitude. Then I thought
to change the header values DEPMEN, DEPMAX and, DEPMIN (figure 2).
Unfortunately, the problem continues (up figure1).
Any suggestions will be highly appreciated.
Thank you,
Félix
No replies
massa@unisannio.it
Dear All,
I am using the last SAC version on OSX 10.11.6 and I am running into some problems. Following I report a synthesis.
Using ppk perplot … markall on and ohpf:
If I pick P and S waves I can see, in the graphic window (Xquartz), only information about P waves. Moreover, if I write “ohpf NAME.txt” and then “chpf” the .txt file contains only the closing row “10”.
How can I see, in the graphic window , also info about S waves?
How can I write in a text file info about picked wa...
[more]
Replies
-
Re: Problem with PPK OHPF and CHPF - Milton Plasencia - 2021-03-30 20:16:38
-
Re: Problem with PPK OHPF and CHPF - massa@unisannio.it - 2021-04-01 05:35:32
-
-
Re: Problem with PPK OHPF and CHPF - Arthur Snoke - 2021-04-09 07:16:04
Tony Saini
Dear Sir/mam, there is a problem with KZ time. actually, the year is
written 12 rather than 2012 in origin time. can you help me to change this
year in kz time?
Replies
-
Re: KZ time Problem - Milton Plasencia - 2021-04-06 20:38:29
-
Re: KZ time Problem - Tony Saini - 2021-04-07 10:51:07
-
Guust Nolet
I am trying to correct Mermaid hydrophone seismograms for their instrument response, but encounter a problem with the polezero file.
I am running SEISMIC ANALYSIS CODE [03/05/2020 (Version 102.0)] on a Mac Powerbook. The forward conversion from ’none’ to
the instrument response works fine, but going backwards I get an error message. For example:
SAC> funcgen boxcar delta 0.05 npts 2048
SAC> p
SAC> trans from none to polezero S pzmm
Station (-12345 ), Channel (-12345 )
Using polezero res...
[more]
Replies
-
Re: Sac's transfer command - Brian Savage - 2021-04-06 14:08:27
-
Re: Sac's transfer command - Milton Plasencia - 2021-04-06 20:08:05
Sheila Peacock
Dear SAC users,
I have just had my computer upgraded to Fedora-33 from 29, and my locally compiled copy of SAC-102 has lost the ability to do command-line editing (e.g. pressing the up-arrow does not get me back to the previous command).
I had compiled SAC-102 on Fedora-29 and was running it on Fedora-33, so I did "make distclean" and recompiled on Fedora-33, but with no better luck.
The version of "libedit" that comes with Fedora-29 is v. 0.0.56, and with Fedora-33 is 0.0.63, and there is...
[more]
