Thread: Phase arrival data

Started: 2021-07-13 13:58:10
Last activity: 2021-08-19 13:02:44
Soneson, Joshua E.
2021-07-13 13:58:10
I'm looking for a convenient way to annotate seismic waveforms and spectrograms with event times and p-, s-wave phase arrivals.

Wilbur 3 produces plots with P- and S-wave arrivals annotated on waveform data. Is there a convenient way to access the arrival times, e.g. a file that can be downloaded and parsed to extract the times automatically?

I'd like to automate this process instead of the old copy and paste routine for each event/station combination.

Thanks,
Josh

  • Adam Clark (Legacy)
    2021-08-19 13:02:44
    Hi Josh,

    Sorry for the slow reply. The predicted arrival times that Wilber uses ultimately come from the TauP library (https://www.seis.sc.edu/TauP/) which does simple distance/depth calculations using a simplified earth model. A version is also available via web service here: http://service.iris.edu/irisws/traveltime/1/

    Cheers,
    Adam

    ----------------------
    Adam Clark
    Web Developer / Admin
    IRIS Data Management Center
    adam<at>iris.washington.edu



    On Aug 19, 2021, at 12:47 PM, Soneson, Joshua E. (via IRIS) <data-request-help-bounce<at>lists.ds.iris.edu> wrote:

    I’m looking for a convenient way to annotate seismic waveforms and spectrograms with event times and p-, s-wave phase arrivals.

    Wilbur 3 produces plots with P- and S-wave arrivals annotated on waveform data. Is there a convenient way to access the arrival times, e.g. a file that can be downloaded and parsed to extract the times automatically?

    I’d like to automate this process instead of the old copy and paste routine for each event/station combination.

    Thanks,
    Josh

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