A forum for SAC users to exchange ideas and ask questions about SAC usage, installation, portability, etc.
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Active Message Threads for September 2009
reza
Whom It May Concern:
If you consider, there are two values in sac header. Depmax and
Depmin which illustrate their amplitudes. I want to obtain their
related periods but I do not know how to do it.
I would be pleased if you help me.
Thank you,
Reza
No replies
Hi every one,
Sac reads the max peak point during the waveform and save them in
Depmax or Depmin.
I want to read Depmax or Depmin in a specific place. For instance in S
group or around T0.
Markptp can read in a specific window but it reads peak to peak and I
want to read only peak in a window range.
I would be pleased if you help me.
Thank you,
Reza,
Replies
-
Re: sac header - George Helffrich - 2009-09-26 17:31:52
Arthur Snoke
Somehow, two of the scripts in sac/bin ended up with DOS line ending so
will not work. That is, every line in these text files end in \r\n
instead of the Unix \n.
These scripts are sgftoeps.csh (used to translate .sgf graphics files to
EPS files) and sgftox.csh (used to produce a screen display of a .sgf file
using gs).
Corrected scripts wil be included with the patches we will be uploading to
IRIS.
In the meantime, if you want to fix these files yourself, on Linux you can
use dos2uni…
[more]
No replies
Onur Tan
Hi,
I use SAC 101.1 on ubuntu 8.10
I write the sac file name wrong.
Then "error 1301" occurs.
I try to read file again
but I get "segmentation Fault" error.
here is an example
SAC>
SAC> r 09077_1647_RRRR.1
SAC> cut 100 300
SAC> r
SAC> r 09077_1647_RRRR.1x
ERROR 1301: No data files read in.
SAC> r 09077_1647_RRRR.1
Segmentation fault
This always occurs. Not depend on data file or operating system (I used Fedora 8 two months ago)
best regards
onur
Replies
-
Re: read : segfault - Arthur Snoke - 2009-09-17 13:31:41
There have been some traffic on sac-help about SAC bugs. Brian Savage has
found fixes and is preparing patches for some of these. I give a list
below. I also describe a bug and a fix I found in the utility program
sgftops. As this program is a "stand-alone" program (does not require
anything more than a compile/install line), I give the patch at the end.
The current plan is to send IRIS the patches to post on the SAC software
Web site in a month or so. Please share with sac-help any …
[more]
No replies
zhaoming
From: "赵明" <zm1984@mail.igcas.ac.cn>
Subject: 来信已收到！
= = = = = = = = = = = = = = = = = = = =
>
> 致
> 礼！
>
>
> 赵明
> zm1984@mail.igcas.ac.cn
************************************************
Mr. Ming Zhao
Institute of Geology and Geophysics
Chinese Academy of Sciences
Beijing 100029
China
Tel: 0086-010-88258647(Office)
************************************************
No replies
Omar Afif
I have tried many times sonogram and spectrogram functions in SAC_Linux ver(00.59.44), but unfortunately I have gotten massages below then SAC has crashed.
========================================SAC> read test_123456.sac
SAC> sonogram
Window size: 200 Overlap: 100 FFT size: 512
Warning: ORDER begin reset to 1/2 length of correlation window.
ORDER = 100
Spectrogram dimensions are 512 by 343 .
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 72…
[more]
Replies
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Re: sonogram and spectrogram problem_2nd email - George Helffrich - 2009-09-15 15:21:37
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Re: sonogram and spectrogram problem_2nd email - Brian Savage - 2009-09-15 18:14:52
-
eshabani@ut.ac.ir
From: "赵明" <zm1984@mail.igcas.ac.cn>
Subject: 来信已收到！
= = = = = = = = = = = = = = = = = = = =
>
> 致
> 礼！
>
>
> 赵明
> zm1984@mail.igcas.ac.cn
************************************************
Mr. Ming Zhao
Institute of Geology and Geophysics
Chinese Academy of Sciences
Beijing 100029
China
Tel: 0086-010-88258647(Office)
************************************************
No replies
Hi,
My problem is this:
markptp command reads absolute value of maximum pick to pick.
Now I want to read only the largest peak or trough during the
waveform.I want to do it for ML magnitude.
Best regards,
Reza
Replies
-
Re: reading largest peak or trough - Onur Tan - 2009-09-12 23:19:39
Susan Bilek
Hi there,
I've run into an error when using the beginwindow command in the
newest version (101.3b). Plotting works fine in a single plot window,
but when I try to plot in a new plot window using "beginwindow 2" then
"plot", I get a bus error and sac quits. This command is in a macro
that worked prior to changing to the newest version, and it's also a
problem outside of a macro, just simply trying to plot after a bw 2
command.
I'm running the binary distribution of 101.3b for Mac…
[more]
No replies
Yi Tao
All,
I have a problem when transforming the sac file to a binary file. I
only want the seismic event data, I don't need the header.
Also, does anyone know how to put the individual seismic events
together, just like SEGY does. I have a lot of data to transform.
Best,
Yi
No replies
Derek Schutt
Hi,
I've been trying to install SAC on my Fedora 11 box (kernel
2.6.29.6-217.2.8.fc11.x86_64), but I've run into a compilation problem:
When I do a no-option configure, then type "make", I get:
>make
Making all in libedit
make[1]: Entering directory `/usr/local/build/libedit'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/usr/local/build/libedit'
Making all in utils
make[1]: Entering directory `/usr/local/build/utils'
make[1]: Nothing to…
[more]
Replies
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Re: troubles compiling sac 101.3b on 64-bit linux (Fedora 11) - Norman Heckscher - 2010-02-22 23:43:22
Dear All,
I need a computer code (fortran, matlab etc.) to convert the ascii time series to SAC format. I would appreciate it if you help me about this problem.
Regards,
Ruhi Saatcilar
TÜBİTAK Marmara Araştırma Merkezi,
Yer ve Deniz Bilimleri Enst.
P.K.21, Gebze-Kocaeli 41470
Tel: 262-6772850, 6772855
Replies
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Re: xy 2 sac - Jorge Luis de Souza - 2009-09-03 18:17:38
-
Re: xy 2 sac - Aladino Govoni - 2009-09-03 20:31:15
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Re: xy 2 sac - George Helffrich - 2009-09-03 21:41:49
-
-
Re: xy 2 sac - Pierre Arroucau - 2009-09-04 16:13:31
-
Re: xy 2 sac - bekler@boun.edu.tr - 2009-09-05 05:35:25
-
From: "赵明" <zm1984@mail.igcas.ac.cn>
Subject: 来信已收到！
= = = = = = = = = = = = = = = = = = = =
>
> 致
> 礼！
>
>
> 赵明
> zm1984@mail.igcas.ac.cn
************************************************
Mr. Ming Zhao
Institute of Geology and Geophysics
Chinese Academy of Sciences
Beijing 100029
China
Tel: 0086-010-88258647(Office)
************************************************
No replies
Hey
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Greetings!
No replies
gilberto saccorotti
Hi to everybody,
I just installed sac-101.3b linux_x86_64 on my 64-bit machine running Ubuntu.
Differently with the previous version, I noted that sac is not able to correctly
read the header's fields (in particular: nzyear, nzjday, nzhour....) of segy,
big-endian data. I can forward a sample file, if needed. Any help-suggestion
is greatly acknowledged.
cheers,
Gilberto
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**************************************************************
Gilberto Saccorotti …
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