Thread: Response stage 0 vs Gain in stationXML

Started: 2011-10-20 18:16:49
Last activity: 2011-10-20 19:00:57
Topics: Web Services
Philip Crotwell
2011-10-20 18:16:49
Hi

The schema says that the <Gain> element within a channel <Epoch>
"Corresponds to SEED blockette 58 for stage 0." but the xml from the
web service does not include a <Gain> element and instead includes a
<Response stage="0"> that only contains a <StageSensitivity>. Seems
like using stage=0 is a SEED convention that really shouldn't be used
in stationXML???

This section of StationXML also seems pretty confusing as there are 4
different places you could put the overall gain,
<InstrumentSensitivity>, <Gain>, <Sensitivity> and <Response
stage="0"> all within a single channel <Epoch> element. Do you know
what the difference is between these?

thanks,
Philip

  • Philip Crotwell
    2011-10-20 19:00:57
    So just noticed that the examples at SCEDC use <Response stage="0">,
    so I guess this is a schema documentation error instead of a web
    services bug???

    http://www.data.scec.org/xml/station/samples/CI_BAR_resp.xml

    ...wishing the examples and the schema documentation were a little
    more consistent.
    Philip

    On Thu, Oct 20, 2011 at 11:16 AM, Philip Crotwell <crotwell<at>seis.sc.edu> wrote:
    Hi

    The schema says that the <Gain> element within a channel <Epoch>
    "Corresponds to SEED blockette 58 for stage 0." but the xml from the
    web service does not include a <Gain> element and instead includes a
    <Response stage="0"> that only contains a <StageSensitivity>. Seems
    like using stage=0 is a SEED convention that really shouldn't be used
    in stationXML???

    This section of StationXML also seems pretty confusing as there are 4
    different places you could put the overall gain,
    <InstrumentSensitivity>, <Gain>, <Sensitivity> and <Response
    stage="0"> all within a single channel <Epoch> element. Do you know
    what the difference is between these?

    thanks,
    Philip


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