A forum for SAC users to exchange ideas and ask questions about SAC usage, installation, portability, etc.
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Help
Help lists are for submitting support questions. Anyone can post a question for IRIS (or another team) to answer.
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Active Message Threads for October 2013
(no body)
Replies
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Re: cutim problem - Brian Savage - 2013-11-01 17:08:43
Hello to all,
does anybody can help me to merge a lot of events into a single file.
I tried a lot hard but i can not,
and how to read and plot all these events in same time ?
my events file are represented like that, i want to merge them without
rename the file , otherwise the process will be to long.
2007-04-30-1224-53S.TIM___040_DAL___SHZ__SAC
2007-04-30-1421-19S.TIM___040_DAL___SHZ__SAC
2007-05-01-0749-42S.TIM___040_DAL___SHZ__SAC
2007-05-01-1058-17S.TIM___040_DAL___SHZ__SAC
Thank you t…
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No replies
LinkedIn
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Sac Help,
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- siti
Accept invitation from siti latifah
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2013-10-21 12:00:22
- 2013-10-21 21:32:22
Hi,
I am just wondering how I should handle instrument response deconvolution when the constant is set to zero in pole zeroes files? Is there a standard practice in this case?
Thanks !
Januka.
_______________
Serenity isn't freedom from the storm, but peace within the storm
Januka Attanayake
Postdoctoral Research Associate
Laboratório de Sismologia
Departamento de Física
Instituto Superior Técnico
Av. Rovisco Pais, 1
1049-001 Lisboa, Portugal
University email: januka.attanayake@ist.ut…
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Re: work around for constant = 0 in pole zeros? - Sheila Peacock - 2013-10-21 21:32:22
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Re: work around for constant = 0 in pole zeros? - Januka Attanayake - 2013-10-21 14:06:21
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Hi,
I am trying to concatenate a couple of variables within a do loop as follows,
DO FILE WILD *.BHZ.*.SAC
READ $FILE
SETBB INSNAME ' ( CONC SAC_PZs_ &1,KNETWK _ &1,KSTNM _BHZ_) '
ENDDO
This used to work in a previous version of SAC but not in the 101.6 version. Can someone please point me to the correct syntax? I am on a MAC OS X (mountain lion).
Thanks !
Januka.
_______________
Serenity isn't freedom from the storm, but peace within the storm
Januka Attanayake
Postdoctoral R…
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Re: concatenate with SETBB - Brian Savage - 2013-10-17 18:34:24
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Re: concatenate with SETBB - Januka Attanayake - 2013-10-17 15:47:18
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dear all ;
Am new user in linux operating system , can some one help me to install and
use rdseed to convert data seed format.
jalal
--
*Abdeljalil LBADAOUI*Earth System Physics Section
International Centre for Theoretical Physics
Strada Costiera 11
I-34151 Trieste - Italy
Phone : +39-040-2240150
Mobile : +39-328-0121863albadaou@ictp.it
<https://webmail.ictp.it/webmail/src/compose.php?send_to=albadaou%40ictp.it>
Replies
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Re: rdseed problem - Robert Casey - 2013-10-15 16:45:25
dear all ,
Please can some one help me to install Sac , I am new in linux operating
system
thank you too much.
Jalal
Replies
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Re: sac help - Milton Plasencia - 2013-10-14 20:25:41
Hello SAC users,
I want to add a line something like this in a C program
*sprintf(str,"cd rdtmp; sac; r *.SAC; interpolate delta 1.0; w over; quit;
../%s");
system(str);*
What I want to do is that C program opens SAC and read in the files with
extension ".SAC" and then interpolate the data. But when I am adding the
above lines, It always stuck just after opening SAC and don't run the
following commands.
Any suggestion in this regard will be appreciated.
Thanks,
-Mohit
Replies
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Re: Calling SAC commands from C program - Bob Dunlop - 2013-10-11 16:46:44
Hi All,
Is there a way to convert sac files to seed files ?
Thanks,
-Mohit
No replies
Dear SAC users,
I need to change the displacement seismograms which are in "nm(nano-meter)"
units to "m(meter)". How can I do this ?. I got these displacement
seismograms after removing the instrument response using transfer function
in sac.
Thanks
-Mohit
No replies
Hi All,
I am trying to remove instrument response but I am getting these errors.
Any one can provide me solution for it ?
SAC> SETBB RESP
"/home/mohit/Ambient_Noise_Processing/NOISE_2012_2/NOISE_GC17_GC18/DATA/2012/244/RESP.X4.GC17..BHZ"
SAC> r ./GC17BHZ
SAC> rtr
Slope and standard deviation are: -1.8385e-06 0.00091153
Intercept and standard deviation are: 0.096362 45.47
Data standard deviation is: 6683
Data correlation coefficient is: 6.8617e-06
SAC> taper
SAC> TRANSFER FROM EVALRESP FNA…
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Re: Instrument Response Removal - Milton Plasencia - 2013-10-07 14:33:43
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Re: Instrument Response Removal - Mohit Agrawal - 2013-10-07 15:38:47
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Re: Instrument Response Removal - raja babu - 2013-10-08 19:01:46
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Re: Instrument Response Removal - Arthur Snoke - 2013-10-07 17:00:59
Hi all,
I seem to be missing the macro, ttsac, in MacSAC, required by split_sheba. Is this an old macro that might be only available on older versions of SAC?
Many thanks,
Badr
Best,
B. W. Rumaih
SWP, Stanford
(323) Rumaih-1
Replies
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Re: ttsac missing - George Helffrich - 2013-10-02 20:31:48
(no body)
Replies
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Re: 2 zeros in SAC 101.6 plot - Brian Savage - 2013-10-02 01:45:50
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Re: 2 zeros in SAC 101.6 plot - Igor - 2013-10-01 22:54:08
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Re: 2 zeros in SAC 101.6 plot - Arthur Snoke - 2013-10-02 02:04:52
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Re: 2 zeros in SAC 101.6 plot - vipul silwal - 2013-10-01 22:12:41
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Re: 2 zeros in SAC 101.6 plot - Igor - 2013-10-01 23:21:03
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Re: 2 zeros in SAC 101.6 plot - Arthur Snoke - 2013-10-02 02:01:42
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Re: 2 zeros in SAC 101.6 plot - Igor - 2013-10-01 23:10:35
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LinkedIn
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Abhash Kumar requested to add you as a connection on LinkedIn:
------------------------------------------
Sac Help,
I'd like to add you to my professional network on LinkedIn.
- Abhash
Accept invitation from Abhash Kumar
http://www.linkedin.com/e/-9ou29g-hm87iaps-1g/ubIx8rFs5oSdYQa2oQHQ-lofPc2q7sw6cHvfFlhxuru/blk/I475294145_125/e39SrCAJoS5vrCAJoyRJtCVFnSRJrScJr6RBfnhv9ClRsDgZp6lQs6lzoQ5AomZIpn8_dj8NnPkQcjgVczkTd4ALjkN4smlQolELd38RdjwNejsNcz4LrCBxbOYWrSlI/em…
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