Thread: Re: converting sac data!!

Started: 2013-03-15 02:14:08
Last activity: 2013-03-15 02:14:08
Topics: SAC Help
Xuan Gong
2013-03-15 02:14:08
I hope to convert SAC to seed, tried to use sac2mseed, but the rdseed
cannot read mseed, is there anybody convert successfully?

Thanks!

--

  • George Helffrich
    2013-03-14 19:02:28
    Dear Xuan Gong -

    This is probably not what you want to do, because you need significantly more data to build seed from either SAC or mseed than simply the data. Think carefully whether you really need to do this.

    For one solution, see the SeedStuff link from

    http://www.orfeus-eu.org/Software/seed-utilities.html

    On 14 Mar 2013, at 11:14, xuan gong wrote:

    I hope to convert SAC to seed, tried to use sac2mseed, but the rdseed cannot read mseed, is there anybody convert successfully?

    Thanks!

    --


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



  • Sheila Peacock
    2013-03-14 19:15:23
    Dear Xuan Gong,

    I suspect that sac2mseed does not create SEED headers,
    since miniSEED files do not have them. rdseed will not
    read miniSEED files unless there is also a "dataless
    SEED file" containing the headers (which contain the
    station metadata).

    If you can obtain a "dataless seed" file then rdseed
    will read your miniSEED files if, before running rdseed,
    you define the environment variable ALT_RESPONSE_FILE to
    be the name of your dataless SEED file
    (in sh/bash shell, "export ALT_RESPONSE_FILE=<dataless SEED filename>")

    I do not know how to create a dataless SEED file from
    SAC files or any other file. When I last looked into it,
    it seemed to be obscure and difficult. Is there someone
    else on the list who can help with that?

    Sheila Peacock.


    On 03/14/2013 11:14 AM, xuan gong wrote:
    I hope to convert SAC to seed, tried to use sac2mseed, but the rdseed cannot read mseed, is there anybody convert successfully?

    Thanks!

    --



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



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