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
September
August
July
June
May
April
March
February
January
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 February 2020
Sachin Tiwari
Dear SAC users,
I apologize for putting this question here.
I am using a Neighbourhood Algorithm (NA) code *raysum_na* for receiver
function inversion. This code generated an ensemble of models in* na.nad* (NA
direct access (NAD) file of models). But when I am running this code it
generates nad file like *na.nad???* (with a question mark). I don't know
why these question marks are coming with this *na.nad* file.
Any help regarding this problem would be greatly appreciated.
Thank you very mu…
[more]
Replies
-
Re: Need help - Cliff Thurber - 2020-02-25 14:35:02
Juan Rueda
Hello.
I have a problem with the plotrecorsection command. I can't draw the travel-times on the seismograms, even with the simple example code.
I do not understand what's happening.
Thanks
SAC> datagen sub regional *.z
/usr/local/sac/aux/datagen/regional/elk.z ...knb.z ...lac.z ...mnv.z
SAC> sss
Signal Stacking Subprocess.
SAC/SSS> traveltime model iasp91 phase Pn Sn
traveltime: depth: 5.000000 km
traveltime: Pn at 57.169170 s [ t = 57.169170 s ]
traveltime: Sn at 101.…
[more]
Replies
-
Re: Plotrecordsection problem - George Helffrich - 2020-02-24 19:04:28
-
RE: Plotrecordsection problem - Juan Rueda - 2020-02-24 19:54:20
-
Re: Plotrecordsection problem - Geo . - 2020-02-25 12:52:10
-
-
Abhash Kumar
Hi,
I want to join multiple SAC files of variable duration to create a single
SAC file of 24-hour duration. I extracted these SAC files from Antelope
database using db2sac. Originally, I tried to extract 24-hour long SAC
files for each station, which worked for most of the stations in the
database. However, for some stations, instead of getting one SAC file of
24-hour long, I get multiple SAC files of variable sizes for each
component. I attached output (from Antelope) SAC files for one parti…
[more]
Replies
-
Re: Joining chunks of SAC files - Robert Walker - 2020-02-05 13:07:41
-
Re: Joining chunks of SAC files - Robert Casey - 2020-02-05 10:18:28
-
-
Re: Joining chunks of SAC files - George Helffrich - 2020-02-05 19:34:25
Zoya Zarifi
Hi,
I am trying to read signal of two earthquakes in SAC and plot the spectrograms. I need to compare the power density spectrum. How can I make the range of color scale on pds for both signals to be the same (as we do for Ylim e.g.)?
qdp off
Ylim -2e5 2e5
cut 55 80
r 2018-12-24-1324.SAC
spectrogram window 2 slice .2 method pds order 100 ymin 0 ymax 50 noscaling
pause
r 2019-02-06-1648.SAC
spectrogram window 2 slice .2 method pds order 100 ymin 0 ymax 50 noscaling
Best regards,
Zoya
…
[more]
