Thread: Re: miniSEED to SAC

Started: 2011-09-16 15:20:46
Last activity: 2011-09-17 17:31:02
Topics: SAC Help
marco.olivieri@bo.ingv.it
2011-09-16 15:20:46

Geoff,
your answer could generate a misunderstanding for people not familiar
with miniSEED.
According to the definition of miniSEED and SAC files you cannot just
convert any miniSEED file into sac (the viceversa is always possible indeed).
I assume that MacSac can read evenly spaced single channel streams
with no gaps.
Is not it?


Marco



On Sep 8, 2011, at 11:14 AM, George Helffrich wrote:

Dear All -

MacSAC reads miniSEED directly. There is no reason why IRIS SAC
couldn't either, and eliminate the conversion steps outlined.

On 7 Sep 2011, at 20:00, Chad Trabant wrote:


Hello Shahar,

Another option would be to use the mseed2sac converter, the source
code is available here:

http://www.iris.edu/pub/programs/converters/

mseed2sac will take a simple ASCII text file that contains the lat,
lon, elev and other simple metadata for the time series and insert
those values into the SAC headers during conversion. This format of
the text file is documented in the man page included with the source
code. There is also an option to insert values into the SAC event
headers during conversion if you want that information included.

regards,
Chad


On Sep 7, 2011, at 11:46 AM, Rick Benson wrote:

Hello, Shahar-

The easiest way to get fulllSEED from miniSED is to first get a
dataless SEED volume
(there are numerous network dataless volumes available online at
http://www.iris.edu/pub/RESPONSES/DATALESS_SEEDS/
and then use the program "rdseed"
http://www.iris.edu/forms/rdseed_request.htm

The manual for rdseed is online at http://www.iris.edu/manuals/rdseed.htm
and look for the "ENVIRONMENT VARIABLES" link at the top "Jump To:" section,
where you set the ALT_RESPONSE_FILE variable that enables you to read in
miniSEED, and output fullSEED.
Let me know if you need more help than this.
Regards,
Rick


On Sep 7, 2011, at 11:29 AM, Shahar Barak wrote:

Hi,

I received some raw data in miniSEED format.
How do I go from miniSEED to SEED? I have the station's location,
elevation and poles&zeros.
I tried to search online and in the SEED documentation, but couldn't
find an explanation on how to go from miniSEED to SEED or how to
create a dataless SEED for that purpose.

Thanks,

Shahar

--
Shahar Barak
=======================================
Crustal Geophysics Research Group
Department of Geophysics, Stanford University
397 Panama Mall, Stanford CA 94305-2215
Mitchell Building, room 463
Office: (650) 724 0461
Cell: (650) 276 6169
Home: (650) 497 3818
shaharb<at>stanford.edu

_______________________________________________
sac-help mailing list
sac-help<at>iris.washington.edu
http://www.iris.washington.edu/mailman/listinfo/sac-help

================
Rick Benson
Director of Operations
IRIS DMC
(206)547-0393 ext. 119(office)
rick<at>iris.washington.edu




_______________________________________________
sac-help mailing list
sac-help<at>iris.washington.edu
http://www.iris.washington.edu/mailman/listinfo/sac-help

_______________________________________________
sac-help mailing list
sac-help<at>iris.washington.edu
http://www.iris.washington.edu/mailman/listinfo/sac-help



George Helffrich
george.helffrich<at>bris.ac.uk

_______________________________________________
sac-help mailing list
sac-help<at>iris.washington.edu
http://www.iris.washington.edu/mailman/listinfo/sac-help


----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.




  • George Helffrich
    2011-09-17 05:05:30
    Dear Marco -

    In the context of this query and discussion, there's no possibility of any additional confusion that you imply.

    MacSAC will read miniSEED. If the data contains gaps or overlaps, you'll be warned. You can change header information to add any additional station information you need, which the user said was available.

    PS - I am assuming your response is directed to me, even if my name isn't Geoff!

    On 16 Sep 2011, at 07:20, marco.olivieri<at>bo.ingv.it wrote:


    Geoff,
    your answer could generate a misunderstanding for people not familiar with miniSEED.
    According to the definition of miniSEED and SAC files you cannot just
    convert any miniSEED file into sac (the viceversa is always possible indeed).
    I assume that MacSac can read evenly spaced single channel streams with no gaps.
    Is not it?


    Marco



    On Sep 8, 2011, at 11:14 AM, George Helffrich wrote:

    Dear All -

    MacSAC reads miniSEED directly. There is no reason why IRIS SAC couldn't either, and eliminate the conversion steps outlined.

    On 7 Sep 2011, at 20:00, Chad Trabant wrote:


    Hello Shahar,

    Another option would be to use the mseed2sac converter, the source code is available here:

    http://www.iris.edu/pub/programs/converters/

    mseed2sac will take a simple ASCII text file that contains the lat, lon, elev and other simple metadata for the time series and insert those values into the SAC headers during conversion. This format of the text file is documented in the man page included with the source code. There is also an option to insert values into the SAC event headers during conversion if you want that information included.

    regards,
    Chad


    On Sep 7, 2011, at 11:46 AM, Rick Benson wrote:

    Hello, Shahar-

    The easiest way to get fulllSEED from miniSED is to first get a dataless SEED volume
    (there are numerous network dataless volumes available online at
    http://www.iris.edu/pub/RESPONSES/DATALESS_SEEDS/
    and then use the program "rdseed"
    http://www.iris.edu/forms/rdseed_request.htm

    The manual for rdseed is online at http://www.iris.edu/manuals/rdseed.htm
    and look for the "ENVIRONMENT VARIABLES" link at the top "Jump To:" section,
    where you set the ALT_RESPONSE_FILE variable that enables you to read in
    miniSEED, and output fullSEED.
    Let me know if you need more help than this.
    Regards,
    Rick


    On Sep 7, 2011, at 11:29 AM, Shahar Barak wrote:

    Hi,

    I received some raw data in miniSEED format.
    How do I go from miniSEED to SEED? I have the station's location, elevation and poles&zeros.
    I tried to search online and in the SEED documentation, but couldn't find an explanation on how to go from miniSEED to SEED or how to create a dataless SEED for that purpose.

    Thanks,

    Shahar

    --
    Shahar Barak
    =======================================
    Crustal Geophysics Research Group
    Department of Geophysics, Stanford University
    397 Panama Mall, Stanford CA 94305-2215
    Mitchell Building, room 463
    Office: (650) 724 0461
    Cell: (650) 276 6169
    Home: (650) 497 3818
    shaharb<at>stanford.edu

    _______________________________________________
    sac-help mailing list
    sac-help<at>iris.washington.edu
    http://www.iris.washington.edu/mailman/listinfo/sac-help

    ================
    Rick Benson
    Director of Operations
    IRIS DMC
    (206)547-0393 ext. 119(office)
    rick<at>iris.washington.edu




    _______________________________________________
    sac-help mailing list
    sac-help<at>iris.washington.edu
    http://www.iris.washington.edu/mailman/listinfo/sac-help

    _______________________________________________
    sac-help mailing list
    sac-help<at>iris.washington.edu
    http://www.iris.washington.edu/mailman/listinfo/sac-help



    George Helffrich
    george.helffrich<at>bris.ac.uk

    _______________________________________________
    sac-help mailing list
    sac-help<at>iris.washington.edu
    http://www.iris.washington.edu/mailman/listinfo/sac-help


    ----------------------------------------------------------------
    This message was sent using IMP, the Internet Messaging Program.





    George Helffrich
    george.helffrich<at>bris.ac.uk



    • marco.olivieri@bo.ingv.it
      2011-09-17 17:31:02
      Quoting George Helffrich <george.helffrich<at>bristol.ac.uk>:

      Dear Marco -

      In the context of this query and discussion, there's no possibility
      of any additional confusion that you imply.

      MacSAC will read miniSEED. If the data contains gaps or overlaps,
      you'll be warned. You can change header information to add any
      additional station information you need, which the user said was
      available.

      PS - I am assuming your response is directed to me, even if my name
      isn't Geoff!


      My apologize, George.
      I misread the name of the sender and thought the message was from
      Geoff, a colleague from whom I received other emails in these days.

      Sorry again, and thanks for the clarification about MacSac

      Marco


      On 16 Sep 2011, at 07:20, marco.olivieri<at>bo.ingv.it wrote:


      Geoff,
      your answer could generate a misunderstanding for people not
      familiar with miniSEED.
      According to the definition of miniSEED and SAC files you cannot just
      convert any miniSEED file into sac (the viceversa is always
      possible indeed).
      I assume that MacSac can read evenly spaced single channel streams
      with no gaps.
      Is not it?


      Marco



      On Sep 8, 2011, at 11:14 AM, George Helffrich wrote:

      Dear All -

      MacSAC reads miniSEED directly. There is no reason why IRIS SAC
      couldn't either, and eliminate the conversion steps outlined.

      On 7 Sep 2011, at 20:00, Chad Trabant wrote:


      Hello Shahar,

      Another option would be to use the mseed2sac converter, the source
      code is available here:

      http://www.iris.edu/pub/programs/converters/

      mseed2sac will take a simple ASCII text file that contains the lat,
      lon, elev and other simple metadata for the time series and insert
      those values into the SAC headers during conversion. This format
      of the text file is documented in the man page included with the
      source code. There is also an option to insert values into the SAC
      event headers during conversion if you want that information
      included.

      regards,
      Chad


      On Sep 7, 2011, at 11:46 AM, Rick Benson wrote:

      Hello, Shahar-

      The easiest way to get fulllSEED from miniSED is to first get a
      dataless SEED volume
      (there are numerous network dataless volumes available online at
      http://www.iris.edu/pub/RESPONSES/DATALESS_SEEDS/
      and then use the program "rdseed"
      http://www.iris.edu/forms/rdseed_request.htm

      The manual for rdseed is online at http://www.iris.edu/manuals/rdseed.htm
      and look for the "ENVIRONMENT VARIABLES" link at the top "Jump To:" section,
      where you set the ALT_RESPONSE_FILE variable that enables you to read in
      miniSEED, and output fullSEED.
      Let me know if you need more help than this.
      Regards,
      Rick


      On Sep 7, 2011, at 11:29 AM, Shahar Barak wrote:

      Hi,

      I received some raw data in miniSEED format.
      How do I go from miniSEED to SEED? I have the station's location,
      elevation and poles&zeros.
      I tried to search online and in the SEED documentation, but
      couldn't find an explanation on how to go from miniSEED to SEED or
      how to create a dataless SEED for that purpose.

      Thanks,

      Shahar

      --
      Shahar Barak
      =======================================
      Crustal Geophysics Research Group
      Department of Geophysics, Stanford University
      397 Panama Mall, Stanford CA 94305-2215
      Mitchell Building, room 463
      Office: (650) 724 0461
      Cell: (650) 276 6169
      Home: (650) 497 3818
      shaharb<at>stanford.edu

      _______________________________________________
      sac-help mailing list
      sac-help<at>iris.washington.edu
      http://www.iris.washington.edu/mailman/listinfo/sac-help

      ================
      Rick Benson
      Director of Operations
      IRIS DMC
      (206)547-0393 ext. 119(office)
      rick<at>iris.washington.edu




      _______________________________________________
      sac-help mailing list
      sac-help<at>iris.washington.edu
      http://www.iris.washington.edu/mailman/listinfo/sac-help

      _______________________________________________
      sac-help mailing list
      sac-help<at>iris.washington.edu
      http://www.iris.washington.edu/mailman/listinfo/sac-help



      George Helffrich
      george.helffrich<at>bris.ac.uk

      _______________________________________________
      sac-help mailing list
      sac-help<at>iris.washington.edu
      http://www.iris.washington.edu/mailman/listinfo/sac-help


      ----------------------------------------------------------------
      This message was sent using IMP, the Internet Messaging Program.





      George Helffrich
      george.helffrich<at>bris.ac.uk





      ----------------------------------------------------------------
      This message was sent using IMP, the Internet Messaging Program.




Page built 04:23:52 | v.b'59d0d2