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.
- Email address
- sac-help@lists.ds.iris.edu
- Type
-
Help
Help lists are for submitting support questions. Anyone can post a question for NSF SAGE (or another team) to answer.
- Moderated by
- IRIS Webmaster
- Related tags
- SAC Software SAC
October
September
August
July
June
May
April
March
February
January
September
August
July
June
May
April
March
February
January
December
November
October
September (1)
August
July
June (4)
May (11)
April (3)
March (5)
February (2)
January (8)
November
October
September (1)
August
July
June (4)
May (11)
April (3)
March (5)
February (2)
January (8)
Active Message Threads for October 2017
Mukesh Das
Hi sac users,
I have computed Ps receiver function in which maximum amplitude (direct
P-wave arrival) comes after 2-3 sec not at 0 sec. I want to shift maximum
amplitude at 0 sec. Can anyone suggest how to shift this maximum amplitude
at 0 sec. Here below i have attached some screen shot of receiver function
in which maximum amplitude (direct P- wave arrival) come at after 2-3 sec.
Thanks
--
Mukesh Kumar Das
JRF (Research Scholar)
Department of Applied Geophysics
Indian lnstitute of Technol…
[more]
Replies
-
Re: Need Help. - Craig Jones - 2017-10-28 06:37:06
-
RE: Need Help. - Steve Gao - 2017-10-30 23:29:47
-
Re: Need Help. - Mukesh Das - 2017-10-31 18:16:06
-
-
-
Re: Need Help. - Geo . - 2017-10-28 16:05:47
-
Re: Need Help. - Mukesh Das - 2017-10-29 18:05:06
-
-
Re: Need Help. - George Helffrich - 2017-10-28 22:51:16
Guilherme de Melo
Hello!
Does anyone know the bibliographic reference of the cross correlation
method used by the SAC in the correlate command?
Regards,
Guilherme de Melo
--
Guilherme Weber Sampaio de Melo
Master's seismology research - UFRN/BR
Replies
-
Re: Reference of corrlelate - George Sand França - 2017-10-23 06:30:56
-
Re: Reference of corrlelate - Brian Savage - 2017-10-23 17:45:48
Hi,
Can anyone please help me to solve the problem in SAC, like the problem is,
in some of the receiver function the direct P-arrival is coming in 2-3 sec
instead of 0 sec. I have tried it to fix but some headers value is missing.
Thank you.
--
Mukesh Kumar Das
JRF (Research Scholar)
Department of Applied Geophysics
Indian lnstitute of Technology (Indian School of Mines)
Dhanbad, Jharkhand-826004, India
Mob +918873563108
+918340601230
No replies
andreas wessel
Hi list,
I'm wondering if there is an easy way to start SAC silently, e.g. not
getting those lines:
SEISMIC ANALYSIS CODE [06/06/2005 (Version 100.1)]
Copyright 1995 Regents of the University of California
Would be net if there was a flag or command or something for this. (I'm
using Sac 100.1 on a linux machine)
Thanks,
Andreas
Replies
-
Re: start sac "silently" - Robert Casey - 2007-02-22 16:16:26
-
Re: start sac "silently" - andreas wessel - 2007-02-23 16:34:10
-
Re: start sac "silently" - Keith Richards-Dinger - 2007-02-23 01:09:51
-
-
-
Re: start sac "silently" - Xiaotao Yang - 2017-10-23 15:32:08
joel.lowe.14@ucl.ac.uk
Hello
I basically want to add the correct SAC header from .txt file to the corresponding .SAC file
I have .SAC file which are named as followed;
N.TROH.U.D.1.SAC
N.TROH.U.D.2.SAC
N.TROH.U.B.3.SAC
N.TROH.U.C.4.SAC
and so on....
I also have a .txt called TROH_T1_T2.txt which is set-out as followed.
N.TROH.U.D.1.SAC 5.5424 6.4533
N.TROH.U.D.2.SAC 3.2432 5.5433
N.TROH.U.B.3.SAC 7.5345 9.5345
N.TROH.U.C.4.SAC 5.3424 3.4234
and so on .....
what i w…
[more]
Replies
-
Re: Adding SAC headers from .txt file - Milton Plasencia - 2017-10-17 02:53:26
Sachin Tiwari
Hi Sac Users,
Can you please help me in listing all my SAC files in increasing order of
their back-azimuth values and assigning integer weights starting from “1”
to each file in their “user8” header? If there are 8 sac files then file
with minimum back-azimuth will have "1" weight in user8, while maximum
back-azimuth file will have "8" weight in its sac header.
Thanks
--
*Sachin Kumar *
*Junior Research Fellow (JRF)*
*Dept. of Applied Geophysics*
*Indian Institute of Technology (Indian S…
[more]
Replies
-
Re: Need Help - Satish_iitb - 2017-10-11 04:23:34
Alejandro Gaytan
2017-10-06 16:11:14
- 2017-10-07 15:29:41
Hello I ‘ll apreciarte you support:
How convert acceleration files with extension .SAC to velocity by using SAC software ?
Thanks so much.
Alejandro
Replies
-
Re: How convert from acceleration to velocity in SAC - Milton Plasencia - 2017-10-07 15:29:41
Sunil .
Dear All,
In signal stacking sub-process (SSS), by default the record section is plotted with distance. I want to plot the record section with another variable like azimuth.
Is there any provision to do it in SSS.
I will appreciate any help and suggestion.
Thanking you,
Regards,
Sunil Roy
ERI, University of Tokyo
Replies
-
Re: Record section with azimuth - Geo . - 2017-10-06 18:56:24
-
Re: Record section with azimuth - Sunil . - 2017-10-07 11:15:39
-
-
Re: Record section with azimuth - Craig Jones - 2017-10-06 22:17:17
-
Re: Record section with azimuth - George Helffrich - 2017-10-07 13:38:00
-
Talal
Dear SAC users and experts,
I used SAC and GMT for years on Unix Solaris for years. But, now I don't
have the same OS (Unix Solaris).
So, I want to create a new environment for my bash and shell programs code
that I have already established before.
Which is easier and problem free of bugs. Creating a Linux environment
(Ubuntu) or working under windows with Cygwin.
Does my bash and shell programs code that I have created before will work
will on windows Cygwin or Ubuntu Linux environment?…
[more]
