Thread: SAC Header Information

Started: 2019-12-25 07:19:32
Last activity: 2019-12-30 13:14:41
Topics: SAC Help
Nora Lay
2019-12-25 07:19:32
Hi,
Hello everyone, I am one of the master students in the seismology research field.
Probably a very simple question. I already downloaded the data that is "seed data file" and "event information file" for one year from one seismic station by using JWEED software. Now, I tying to extracted the data seed to SAC and add event information to SAC file. In this case, i already extracted seed to SAC by using "rdseed -df (seed file name)" with this command. But, I don't know how to add event information to SAC header. can you please suggest how to add the events information. Thank you.


Kind Regards,
Noralay
Master Student
IGG.
  • Geo .
    2019-12-30 13:14:41
    Hi Nora,
    Please check the SAC manual for chnhdr functionality

    https://ds.iris.edu/files/sac-manual/commands/chnhdr.html

    Januka

    On Mon., 30 Dec. 2019, 1:07 pm Nora Lay, <noralay545<at>gmail.com> wrote:

    Hi,
    Hello everyone, I am one of the master students in the seismology
    research field.
    Probably a very simple question. I already downloaded the data that is
    "seed data file" and "event information file" for one year from one
    seismic station by using JWEED software. Now, I tying to extracted the data
    seed to SAC and add event information to SAC file. In this case, i already
    extracted seed to SAC by using "rdseed -df (seed file name)" with this
    command. But, I don't know how to add event information to SAC header. can
    you please suggest how to add the events information. Thank you.


    Kind Regards,
    Noralay
    Master Student
    IGG.

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    • George Helffrich
      2019-12-30 09:38:13
      Dear All -

      An old program — but one that still works — that is useful going from a SEED volume to SAC traces with station and event information in the files, and cut into different seismic wave arrival time windows, is CDSEIS. You can find info on building and using it here:

      https://github.com/ghfbsd/cdseis

      On 30 Dec 2019, at 02:15, Geo . <jattanayake<at>gmail.com> wrote:

      Hi Nora,
      Please check the SAC manual for chnhdr functionality

      https://ds.iris.edu/files/sac-manual/commands/chnhdr.html

      Januka

      On Mon., 30 Dec. 2019, 1:07 pm Nora Lay, <noralay545<at>gmail.com <noralay545<at>gmail.com>> wrote:
      Hi,
      Hello everyone, I am one of the master students in the seismology research field.
      Probably a very simple question. I already downloaded the data that is "seed data file" and "event information file" for one year from one seismic station by using JWEED software. Now, I tying to extracted the data seed to SAC and add event information to SAC file. In this case, i already extracted seed to SAC by using "rdseed -df (seed file name)" with this command. But, I don't know how to add event information to SAC header. can you please suggest how to add the events information. Thank you.


      Kind Regards,
      Noralay
      Master Student
      IGG.

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      SAC Help
      Topic home: http://ds.iris.edu/message-center/topic/sac-help/ | Unsubscribe: sac-help-unsubscribe<at>lists.ds.iris.edu <sac-help-unsubscribe<at>lists.ds.iris.edu>

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      Topic home: http://ds.iris.edu/message-center/topic/sac-help/ | Unsubscribe: sac-help-unsubscribe<at>lists.ds.iris.edu

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      George Helffrich
      george<at>elsi.jp


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