SAC Help

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.
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Active Message Threads for January 2015

Geo .
Re: sac-help Digest, Vol 111, Issue 9
2015-01-24 00:22:20 - 2015-01-30 00:05:51
Dear Mei, revise your first line as follows, setbb log '&1,kstnm& .split' As per the second line with an evaluation, there may be a issue. I tried to recreate the following example given on p.49 in SAC Primer and came across a similar problem. Perhaps SAC developers can provide an explanation. SAC Primer Example ---------------------------- SAC> setbb x 1 ;* set x to 1 SAC> message "sqrt (%x% + %x%) is (sqrt (%x% + %x%))" sqrt 2.000000 is 1.41421 My result on SAC 101.6 ---------… [more]
Replies
Sheila Peacock
Fwd: Re: Fwd: Delete one trace from other traces
2015-01-29 19:42:20 - 2015-01-29 20:48:25
sorry should have CCd the list. -------- Original Message -------- Subject: Re: [SAC-HELP] Fwd: Delete one trace from other traces Date: Thu, 29 Jan 2015 11:23:51 +0100 From: satish maurya <maurya2278satish@gmail.com> To: Sheila Peacock <sheila@blacknest.gov.uk> Thanks for quick reply I mean delete trace_1 (one trace): Is stack of three traces(A,B,C) trace_2 (Two trace): I have two individual trace B and C. *Show I want in final only trace A* *So I have to delete B and C from tarace_… [more]
Replies
Sheila Peacock
Fwd: Re: Fwd: Delete one trace from other traces
2015-01-29 19:54:39
-------- Original Message -------- Subject: Re: [SAC-HELP] Fwd: Delete one trace from other traces Date: Thu, 29 Jan 2015 11:59:51 +0100 From: satish maurya <maurya2278satish@gmail.com> To: Sheila Peacock <sheila@blacknest.gov.uk> Thanks Sheila, You are correct "SUBF" that what I need. Thanks for help On Thu, Jan 29, 2015 at 11:23 AM, satish maurya <maurya2278satish@gmail.com <mailto:maurya2278satish@gmail.com>> wrote: Thanks for quick reply I mean delete trace_1 (… [more]
No replies
Satish_iitb
Fwd: Delete one trace from other traces
2015-01-29 19:04:41
Dear all, I want to known, how to delete one more trace from single trace Let A.sac and I have B.sac C.sac and I want to remove B and C from A trace. I am try *DELETESTACK i got error*, I don't known how to use it. Thanks in advance ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *Satish Maurya* * Ph.D. studentDept. of Seismology* *IPGP, France* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
No replies
ying
sac window size
2015-01-27 20:37:43 - 2015-01-28 04:08:38
hi colleagues: Is there a way to reduce the window size after 'bd x'? Everytime, I have to resize the window size. Thank you. Ying cai zheng
Replies
Greg Brenn
Error Interpreting command: setbb
2015-01-25 19:36:25 - 2015-01-26 03:21:08
Hello, I am attempting to run a script that needs to set the blackboard variable for the beginning and end of both the east and north components of my files. The macro setup that I’m using is: foreach sta (`cat stationList`) sac << EOF setbb east $sta.BHE setbb north $sta.BHN r %east setbb begE &,B setbb endE &,E r %north setbb begN &,B setbb endN &,E getbb TO checkLIST names off newline off begE begN endE endN quit EOF The error that results is : SEISMIC AN… [more]
Replies
Mei Xue
Help with version 101.6a
2015-01-23 19:20:40 - 2015-01-24 06:50:16
I am wondering if anyone can help me with the following problem: After I installed the latest version of SAC (101.6 for X86-64) I found that a piece of my SAC macro codes didn't work and which worked and still works well in the older version of SAC (101.3b for X86-64). The piece of codes and their corresponding output the two versions of SAC are as the following: 101.3b version: setbb log " ( concatennate &1,kstnm& .split ) " message "%log%" HY16.split 101.6a version: setbb log " ( concate… [more]
Replies
simon
Fwd: band pass filter problem
2015-01-24 00:17:40
Hello, I run band pass filter using command as: bp co 0.01 0.1 n 4 p 2 the original waveform is the top one (with dt=1.0s, npts=7200), the filtered one is at the bottom, why there is a strange wiggle in the left edge? Jun Xie
Replies
Thulasiraman Natarajan
Fwd: Help with removing instrument response
2015-01-01 23:15:47 - 2015-01-20 00:13:26
(no body)
Replies
Matteo Bagagli
End-Date SAC's file
2015-01-17 00:48:19 - 2015-01-19 18:56:59
Hello to all, I'm new to the mailing list, I'm a researcher from Pisa. Now my question in basically simple, but I don't think the answer will be the same. As I pointed out in the mail-object, I was wondering how I could get the FINAL date of the time series I've read in SAC 101.6a?? To make it clearer, if I use the "ppk" function and click over the last sample of the plot it appears on screen the relative date: how can I export that date from SAC? In the header I could get only the START DATE … [more]
Replies
Greg Brenn
SAC Macro Help to Kick Out EQs of certain epicentral distances
2015-01-17 01:35:33 - 2015-01-17 18:22:00
Hello, I was wondering if anyone could help me with writing a SAC macro that reads in multiple event files, and deletes any events that are beyond a certain epicentral distance away from the station. I have events with epicentral distances from 30-90 degrees; however, I want to kick out any events with epicentral distances greater than 85 degrees. Is there a way in SAC to kick out those events from 85-90 degrees that I don’t want? I have checked the SAC header files, and the DIST functions… [more]
Replies
Greg Brenn
SAC Macro Help to Kick Out EQs of certain epicentral distances
2015-01-17 01:35:33
Hello, I was wondering if anyone could help me with writing a SAC macro that reads in multiple event files, and deletes any events that are beyond a certain epicentral distance away from the station. I have events with epicentral distances from 30-90 degrees; however, I want to kick out any events with epicentral distances greater than 85 degrees. Is there a way in SAC to kick out those events from 85-90 degrees that I don’t want? I have checked the SAC header files, and the DIST functions… [more]
No replies
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