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Active Message Threads for January 2010
Sheila Peacock
Does the latest SAC "readgse" command pick up the station
latitudes/longitudes/elevations from the STA2 header line
of GSE2.0 files? If not, are there plans to incorporate
this into "readgse" in upcoming versions?
Regards,
Sheila Peacock.
No replies
Igor
This is an update to my original message about "do file wild *SAC" problem.
Katie Boyle helped me to figure out what was happening.
So, the problem is with the sac memory limit. The script works fine with a
few files but when I increase the number of them to 150, sac fails with the
segfault. Apparently, "do file wild *SAC" wants to fit all *SAC data into
the buffer and cannot.
The data files are 1 sps, 2 hour long LHZs. Each file is 29K (29436) long.
My sac version is the latest and greates…
[more]
Replies
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Re: question about "do file wild *SAC" - Arthur Snoke - 2010-01-27 03:04:59
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Re: question about "do file wild *SAC" - Igor - 2010-01-27 08:53:57
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Oops.. Thanks for pointing that out, that was copy and paste error caused on
my side. This is the correct version:
do file wild *SAC
setbb vert $file
r %vert
setbb station &1,KSTNM
setbb otime &1,O
evaluate to cotime %otime * (-1.0)
ch ALLT %cotime IZTYPE IO
setbb network &1,KNETWK
setbb polezero %polezerod%%station%.%network%.PZ
w %vert
enddo
Also, the SAC version I use is 101.3b
Sorry about that,
Igor
On Tue, Jan 26, 2010 at 9:06 PM, Katie Boyle <Kboyle@lbl.gov> wrote:
> i'm not sure if …
[more]
No replies
Dear SAC users,
Could you please help me to find out what's wrong with my file reading
sequence?
The code snippet from sac_LHZ.test:
...
do file wild *SAC
setbb vert $file
r %vertdo file wild *SAC
setbb station &1,KSTNM
setbb otime &1,O
evaluate to cotime %otime * (-1.0)
ch ALLT %cotime IZTYPE IO
setbb network &1,KNETWK
setbb polezero %polezerod%%station%.%network%.PZ
w %vert
enddo
...
The content of the current dir:
PTRP.TO.SAC LVOF.TO.SAC MMMR.TO.SAC
The errors:
>do file wild *SAC
>./tr…
[more]
No replies
Nicolas Houlie
>Hello,
>
>I am looking for some help to pick up times on SAC waveforms. I saw you
>can use PPK but I do not find any help on your webpage (nothing in
>graphics capabilities).
>
>is this possible to save the times/amplitudes in a file ?
>
>Thanks,
>
>nicolas
Nicolas Houlie
School of Earth and Environment
15-19 Hyde Terrace,
Email: n.houlie@leeds.ac.uk
Replies
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Re: ppk? - Milton Plasencia - 2010-01-26 03:12:19
hectorg@miners.utep.edu
I would like to know how to draw a zero y-axis (in addition to the top and bottom axes) when using ppk. Thank you.
Atte Hector Gz. Huizar
No replies
Mac Green
Hi all,
I am using data collected with labview and saved as text files. I have to
sets of data,
the amplitude data set and a set of time intervals which are not even.
I use readtable to import the data into sac and then write it as a sac file.
If my data
was evenly sampled, I would use delta in the header to give the time
interval. Does anyone
know how I can get the FFT of data whose delta is not constant, it I have a
second file with
time intervals?
Thanks.
Replies
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Re: FFT with unevenly sampled data in SAC - LeRoy Dorman - 2010-01-13 18:17:38
J. Ole Kaven
Hi all!
I'm having problems right after the installation. I received a tarball
"sac-101.3b.tar.gz" and followed the instructions in the email as well
as those listed in $SACHOME/README
Problem: SAC isn't executing despite following the installation
instructions carefully.
System information:
System:
"uname -ris": Linux 2.6.18-164.9.1.el5 x86_64
I'm running RedHat Linux 5.4 (CentOS 5.4)
SAC Location:
"echo $SACHOME": /usr/local/bin
Settings & ~/.bashrc:
export SACHOME=/usr/local/sac
expor…
[more]
Replies
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Re: SAC not executing: " ERROR: Number 901 in INITCOMLISTS." - Yannik Behr - 2010-03-15 23:42:18
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Re: SAC not executing: " ERROR: Number 901 in INITCOMLISTS." - Yannik Behr - 2010-03-16 00:19:48
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Denise Fernandez
Dear all,
I'm trying to pick the amplitudes of the s and p arrivals. What I've been
done so far is picking them using the command ppk and then positioning the
cursor and pressing m. That draws a little box around the portion of the
graph that contains the arrival. I thought SAC will store the info in the
header but I can't find any variable with information of this specific
portion of the graph. I'm new using SAC so I guess I am missing something
important here. Do I have to set a blackboard va…
[more]
No replies
Maria Silveira
Dear all,
I need to plot several times the same recordsection (with ~250 files, and
using SSS) in the following way:
Need to make a cycle were
1) The first trace is red (for example) and all the other ones stay black
Then I make the decision f I want to delete it or not
2) The second trace is red and all the other ones stay black
Similarly I make the decision
3) The third trace is red and all the other ones stay black
-........
ETC ETC
I know everything else (decisions,…
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