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Active Message Threads for August 2018
Wenkai Song
2018-08-23 01:17:12
- 2018-08-23 15:47:22
Hi,
In order to make the B and KZTIME of the three components consistent, I conducted "synchronize" command. The SAC informed: ERROR 0: Resulting error from shift exceeded tolerance (1e-6): 0.0005. Could you tell me what the error is and how can I fix it, please?
The attached files are the original files that yielded errors.
Thank you!
Replies
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Re: ERROR 0: Resulting error from shift exceeded tolerance (1e-6) - Milton Plasencia - 2018-08-23 02:50:27
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Re: ERROR 0: Resulting error from shift exceeded tolerance (1e-6) - George Helffrich - 2018-08-23 15:47:22
Hi everyone,
I need to install the auxiliary routines hk and setrfslow to make RF
analysis.
This seems to be quite heavy, anyone installed these routines? Please I
need some help to do it
thank you in advance
Claudia
PhD in Sciences/Geology
No replies
Hello, Is it possible picking SKS phase in SSS?
for S phase picking I used following command.
SAC> sac
SAC>r *SAC
SAC>sss
SAC>traveltime phase S picks 0 verbose
SAC>qs
SAC>w over
but, if I try SKS it answered
"traveltime: error finding phase SKS."
Replies
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Re: how picking SKS phase using SSS? - Geo . - 2018-08-14 16:18:28
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Re: how picking SKS phase using SSS? - John Aragon - 2018-08-18 05:41:33
Hi,
I am using SAC on debian and I have encountered a problem using the MERGE
function. The problem I have is the same as the one discussed 2015 :
https://seiscode.iris.washington.edu/issues/683
My problem is that the MERGE option GAP interp does not works correctly.
I have attached you three files, m1.SAC, m2.SAC and m1m2.SAC the result
from MERGE gap interp overlap average. I cannot use gap zero because the
signals are not centered in zero and have a different mean. One solution
could be to…
[more]
Replies
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Re: Problem with MERGE function - Milton Plasencia - 2018-08-16 03:23:33
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Re: Problem with MERGE function - NANNI Ugo - 2018-08-16 16:00:36
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Re: Problem with MERGE function - Milton Plasencia - 2018-08-17 01:42:43
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Hi!
Problem installing SAC in Ubuntu =(
The software is ready, but when I try to run it, this message appears:
ERROR: Environmental variable SACAUX not defined
I read in some pages that I have to modify the .bashrc file, but this is
done, and still not working.
This is my bashrc file:
# SAC Environment variables
export SACHOME=/usr/local/sac # change to your sac dir.
export PATH=$PATH:$SACHOME/bin
export SACAUX=$SACHOME/aux
export SACLIB=$SACHOME/lib/sacio.a
export SAC_USE_DATABASE=0
export…
[more]
Replies
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Re: problem installing SAC in Ubuntu - Milton Plasencia - 2018-08-14 23:53:05
Dear All,
I am trying to extract a .seed file to .sac using rdseed software. The
following command is being used for the extraction and the associated error
is also given below:
*mohit@mantle:~/Downloads$ rdseed -f 2012-01-21-18-47.seed -R -d -o 1<<
IRIS SEED Reader, Release 5.3.1 >> R = print response data (with
addressing for evresp) d = read data from tape Taking input from
2012-01-21-18-47.seedOutput data format will be sac.binary.INFO: sac
variable EVDP will be in KILOME…
[more]
Replies
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Re: Need help from SEED to SAC - Milton Plasencia - 2018-08-13 23:10:28
Hello again Kris,
In that case your PZs file should reflect that (see the INPUT UNIT), which
would translate into modifications of SENSITIVITY and A0 based on
instrument specification.
Januka
On Fri, 10 Aug 2018 at 07:13, Phillips-Alonge, Kristin E CIV DTRA R AND D
(US) <kristin.e.phillips-alonge.civ@mail.mil> wrote:
> Yes, the input is always counts. But the input in counts could be
> proportional to either displacement, velocity, or acceleration depending on
> the instrument. Accordin…
[more]
No replies
Phillips-Alonge, Kristin E CIV DTRA R AND D (US
2018-08-09 20:55:05
- 2018-08-10 13:51:04
Hello,
I have some IRIS data converted to SAC format along with the corresponding polezero files and want to use "transfer" along with the pzfiles to perform the deconvolution to remove instrument response. I know that the SAC transfer function is expecting a displacement input. If I am using "TRANS FROM POLEZERO S %pzfile to NONE" or "TRANS FROM POLEZERO S %pzfile to VEL" and my input actually is a displacement, I expect the output to be the displacement for the first command and velocity …
[more]
Replies
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Re: Clarification on SAC transfer function - Milton Plasencia - 2018-08-10 06:50:31
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Re: Clarification on SAC transfer function - Geo . - 2018-08-10 13:51:04