Thread: Re: sac-help Digest, Vol 81, Issue 7

Started: 2012-07-25 09:01:30
Last activity: 2012-07-25 09:01:30
Topics: SAC Help
mahinda@gsmb.gov.lk
2012-07-25 09:01:30
Dear Sunil,

00 and 10 represent the locations where the bore hole (STS 2 ) seismometer and the shallow Guralp CMT 3G seismometer are  installed  respectively at PALK station.

rgds

mahinda

 

SWM  SENEVIRATNE                                                                                             
Seconded Scientist (Geophysicist)

Regional Integrated Multi-Hazard Early Warning System (RIMES),
Asian Institute of Technology campus,
PO Box 4 Klong Luang, Pathumthani 12120,
Thailand.

Tel.:      +662 516 5905 - 07
Fax:      +662 516 5908 - 09                   


________________________________
From: "sac-help-request<at>iris.washington.edu" <sac-help-request<at>iris.washington.edu>
To: sac-help<at>iris.washington.edu
Sent: Tuesday, July 24, 2012 4:37 PM
Subject: sac-help Digest, Vol 81, Issue 7

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Today's Topics:

  1. Re:  khole in sac (Milton P. Plasencia Linares)
  2. Re:  sac-help Digest, Vol 81, Issue 6 (George Sand Franca)
  3.  Quality factor using SAC Software (Abderrahim Boulanouar)
  4. Re:  Quality factor using SAC Software (Januka Attanayake)


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Message: 1
Date: Mon, 23 Jul 2012 09:47:51 +0200
From: "Milton P. Plasencia Linares" <mplasencia<at>ogs.trieste.it>
Subject: Re: [SAC-HELP] khole in sac
To: "Sunil Roy" <seismo_003<at>rediffmail.com>
Cc: sac-help<at>iris.washington.edu
Message-ID: <20120723094751.157369lltzjk3s87<at>webmail.ogs.trieste.it>
Content-Type: text/plain;    charset=ISO-8859-1;    DelSp="Yes";
    format="flowed"


Hi Sunil,
00 and 10 etc represents the Location code, in this case
represents different instruments en the same place (Station PALK),
i see in the IRIS II network and the 00 (BH?)correspond to the Borehole
instrument Geotech KS-54000, and Location 10 (BH?) correspond to GMG-3T
Guralp instrument, see here: http://www.iris.edu/dms/mda.htm and
search for II Network and then for PALK station.

HTH,

Milton


**********************************
Milton P. PLASENCIA LINARES

Dipartimento Centro di Ricerche Sismologiche
Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS

Borgo Grotta Gigante 42/C
(34010) Sgonico - TRIESTE - ITALIA
Tel: +39-040-2140136
Fax: +39-040-327307

E-mail: mplasencia<at>ogs.trieste.it

ASAIN (Antarctic Seismographic Argentinean Italian Network)
*********************************


Quoting "Sunil Roy" <seismo_003<at>rediffmail.com>:

Dear Sac Users,

I have download data form IRIS, which is in seed format.
Late I have converted it to sac format. I found that for some
event two sac files are present with different file name as:

2011.365.00.39.00.0195.II.PALK.00.BHZ.M.SAC
2011.365.00.39.00.0195.II.PALK.10.BHZ.M.SAC

After closely looking at the header I found that they have
different value in khole. So in the file name 00 and 10 represents
khole value. If it is khole then what it represents. Which file should
I take for my analysis. If not then why this two files are different.




with regards
Sunil




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Message: 2
Date: Mon, 23 Jul 2012 06:02:38 -0300
From: George Sand Franca <georgesand<at>unb.br>
Subject: Re: [SAC-HELP] sac-help Digest, Vol 81, Issue 6
To: sac-help<at>iris.washington.edu
Message-ID:
    <20120723060238.Horde.FIR3HHxkR_ZQDRMuKG0QzfA<at>webmail.unb.br>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed";
    DelSp="Yes"

Dear Sunil Roy

    00 and 10 is location code

    Some stations, in particular IRIS stations, use location codes. In this
case you have to enter the location code here. Typically ?00? for STS-1 or
?10? for STS-2 seismometer.

    If they has the same SPS they aren't diferents.

    Best Regards
    ?

    Prof. George Sand Fran?a
    Observat?rio Sismol?gico
    Universidade de Bras?lia
www.obsis.unb.br[1]
www.tremordeterra.blogspot.com[2]
    61 31071298

Citando sac-help-request<at>iris.washington.edu:
Send sac-help mailing list submissions to
? ? ? ? sac-help<at>iris.washington.edu

To subscribe or unsubscribe via the World Wide Web, visit
? ? ? ? http://www.iris.washington.edu/mailman/listinfo/sac-help
or, via email, send a message with subject or body 'help' to
? ? ? ? sac-help-request<at>iris.washington.edu

You can reach the person managing the list at
? ? ? ? sac-help-owner<at>iris.washington.edu

When replying, please edit your Subject line so it is more specific
than "Re: Contents of sac-help digest..."


Today's Topics:

? 1. Re:? suppress "r *.sac" output (Yun Wang)
? 2.? delay and sum of phase shift (swaroopa rani)
? 3.? khole in sac (Sunil Roy)


----------------------------------------------------------------------

Message: 1
Date: Thu, 19 Jul 2012 09:15:54 -0800
From: Yun Wang <nubeyun<at>gmail.com>
Subject: Re: [SAC-HELP] suppress "r *.sac" output
To: Brian Savage <savage<at>uri.edu>
Cc: sac-help<at>iris.washington.edu
Message-ID:
? ? ? ? 
<CAPADZb=1WYgfA6M1AbFJy9LpJsyKtWPP3jbyi4LsHLC0WYnEfA<at>mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

That works! How great! Thank you, Brian.

On Thu, Jul 19, 2012 at 4:57 AM, Brian Savage <savage<at>uri.edu> wrote:
Yun,

Try

SAC> wild echo off

The wild command controls the definition of wildcard characters if the
wildcard results are displayed upon expansion.

Brian

On Jul 18, 2012, at 7:50 PM, Yun Wang wrote:


when reading in a bunch of files represented by wild card

sac> r *.sac

the screen will display the whole list of all *.sac, which is very
annoying in the programming sense.
? Anyone knows a way to suppress this output? Thanks.

Yun

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Message: 2
Date: Fri, 20 Jul 2012 12:04:48 +0530
From: swaroopa rani <swarajesh79<at>gmail.com>
Subject: [SAC-HELP] delay and sum of phase shift
To: sac-help<at>iris.washington.edu
Message-ID:
? ? ? ? 
<CANoA74yPv18-=mM8nph+-8VhS1Bv1pTu3HxQ0dQAZVa1Qr-UMw<at>mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

Dear Sir/Madam,

Is there any macro or script in sac to determine the delay times and
slowness for an array of seismic network stations

Please do the needful

thanking you,
with regards,
swaroopa
--
Dr. V. Swaroopa Rani
DST-YOUNG SCIENTIST
Principal Investigator
Earthquake Hazard Group
National Geophysical Research Institute
Hyderabad-606
Ph.9866583493
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Message: 3
Date: 23 Jul 2012 07:04:04 -0000
From: "Sunil Roy" <seismo_003<at>rediffmail.com>
Subject: [SAC-HELP] khole in sac
To: "sac-help<at>iris.washington.edu" <sac-help<at>iris.washington.edu>
Message-ID: <20120723070404.17439.qmail<at>f4mail-235-198.rediffmail.com>
Content-Type: text/plain; charset="utf-8"

Dear Sac Users,

I have download data form IRIS, which is in seed format.
Late I have converted it to sac format. I found that for some
event two sac files are present with different file name as:

2011.365.00.39.00.0195.II.PALK.00.BHZ.M.SAC
2011.365.00.39.00.0195.II.PALK.10.BHZ.M.SAC

After closely looking at the header I found that they have
different value in khole. So in the file name 00 and 10 represents
khole value. If it is khole then what it represents. Which file should
I take for my analysis. If not then why this two files are different.




with regards
Sunil
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End of sac-help Digest, Vol 81, Issue 
6***************************************




Links:
------
[1] http://www.obsis.unb.br
[2] http://www.tremordeterra.blogspot.com
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Message: 3
Date: Tue, 24 Jul 2012 09:58:28 +0000
From: Abderrahim Boulanouar <cocanouar<at>gmail.com>
Subject: [SAC-HELP] Quality factor using SAC Software
To: sac-help<at>iris.washington.edu
Message-ID:
    <CAEnpZ+DsNngFQ64XCM68q27AtSWGHQAV4nzG9OqH9K6Sf5TcRA<at>mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

Dear Sac Users,

I'm PhD student from Morocco , i work on the attenuation of wave seismic .
Is there any macro or script to determine the quality factor Qc using
SAC software ?


Thank you in advance for your reply.

Best Regards

Abderrahim Boulanouar


------------------------------

Message: 4
Date: Tue, 24 Jul 2012 04:06:58 -0700 (PDT)
From: Januka Attanayake <jattanayake<at>yahoo.com>
Subject: Re: [SAC-HELP] Quality factor using SAC Software
To: Abderrahim Boulanouar <cocanouar<at>gmail.com>
Cc: "sac-help<at>iris.washington.edu" <sac-help<at>iris.washington.edu>
Message-ID:
    <1343128018.93958.YahooMailNeo<at>web162003.mail.bf1.yahoo.com>
Content-Type: text/plain; charset="iso-8859-1"

Hello Abderrahim,?

Qc generally refers to scattering attenuation and if you want to calculate that, you may look at the following paper:


Leyton, F., and K. D. Koper (2007), Using PKiKP coda to determine inner core structure: 2. Determination of QC,
J. Geophys. Res., 112, B05317, doi:10.1029/2006JB004370

On the other hand, if you are referring to Q in general, then you may have to use a synthetic seismogram algorithm like reflectivity.?

Januka.

?
_______________
Serenity isn't freedom from the storm, but peace within the storm

Januka Attanayake?
Earthquake Seismology & Economics
The University of Connecticut
354, Mansfield Road
Storrs, CT 06269-2045
Tel:860 486 3914 (Lab - P405)

Home page:?http://sites.google.com/site/janukaattanayake/
Research group:?http://www.phys.uconn.edu/research/geophysics/index.html








________________________________
From: Abderrahim Boulanouar <cocanouar<at>gmail.com>
To: sac-help<at>iris.washington.edu
Sent: Tuesday, July 24, 2012 5:58 AM
Subject: [SAC-HELP] Quality factor using SAC Software

Dear Sac Users,

I'm PhD student from Morocco , i work on the attenuation of wave seismic .
Is there any macro or script to determine the quality factor Qc using
SAC software ?


Thank you in advance for your reply.

Best Regards

Abderrahim Boulanouar
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sac-help mailing list
sac-help<at>iris.washington.edu
http://www.iris.washington.edu/mailman/listinfo/sac-help
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End of sac-help Digest, Vol 81, Issue 7
***************************************
17:32:22 v.ad6b513c