Thread: response file question

Started: 2017-09-16 02:33:31
Last activity: 2017-09-16 03:27:32
Topics: PDCC
Mike Stickney
2017-09-16 02:33:31
I'm using PDCC v3.8 to generate dataless seed files. For a station that I record (not mine), the location code changed, but nothing else. Should I treat this location code change as a separate station or a new epoch of the same station?
Here is specific case: 2255.NP.EHZ.-- was changed to 2255.NP.EHZ.0B.
Thanks for any guidance. -Mike


Michael Stickney, Director
Earthquake Studies Office
Montana Bureau of Mines and Geology
Montana Tech of the University of Montana
1300 W Park St
Butte, MT 59701

(406) 496-4332 Voice
(406) 496-4451 Fax
mstickney<at>mtech.edu<mstickney<at>mtech.edu>
http://mbmgquake.mtech.edu


  • Mary Templeton
    2017-09-15 21:09:38
    Hi Mike,

    If a location code changes, it’s practice to treat it like a new channel, even
    if nothing changed in the hardware. This has happened a lot over the history of
    the GSN. So you’d close out the old channel epoch (2255.NP.EHZ.—) and open
    the new one to include the location code (2255.NP.EHZ.0B).

    You would open a new station _epoch_ if some of the information in the SEED
    station blockette (50) had changed (e.g. lat/long). If a station location changes
    by more than roughly 1 km (I believe that’s the correct distance) you’d create a
    new station _name_ (i.e. rename the station).

    cheers,
    Mary




    On Sep 15, 2017, at 1:35 PM, Mike Stickney <MStickney<at>mtech.edu> wrote:

    I'm using PDCC v3.8 to generate dataless seed files. For a station that I record (not mine), the location code changed, but nothing else. Should I treat this location code change as a separate station or a new epoch of the same station?
    Here is specific case: 2255.NP.EHZ.-- was changed to 2255.NP.EHZ.0B.
    Thanks for any guidance. -Mike


    Michael Stickney, Director
    Earthquake Studies Office
    Montana Bureau of Mines and Geology
    Montana Tech of the University of Montana
    1300 W Park St
    Butte, MT 59701

    (406) 496-4332 Voice
    (406) 496-4451 Fax
    mstickney<at>mtech.edu
    http://mbmgquake.mtech.edu


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    • Mike Stickney
      2017-09-16 03:27:32
      Mary,

      Thanks for the clarification. I'll start a new epoch for the same station.

      -Mike

      -----Original Message-----
      From: Mary Templeton [met<at>iris.washington.edu]
      Sent: Friday, September 15, 2017 2:10 PM
      To: Stickney, Mike <MStickney<at>mtech.edu>
      Cc: Mary Templeton <met<at>iris.washington.edu>; PDCC
      <pdcc<at>lists.ds.iris.edu>
      Subject: Re: [IRIS][pdcc] response file question

      Hi Mike,

      If a location code changes, it’s practice to treat it like a new channel,
      even if nothing changed in the hardware. This has happened a lot over the
      history of the GSN. So you’d close out the old channel epoch
      (2255.NP.EHZ.—) and open the new one to include the location code
      (2255.NP.EHZ.0B).

      You would open a new station _epoch_ if some of the information in
      the SEED station blockette (50) had changed (e.g. lat/long). If a station
      location changes by more than roughly 1 km (I believe that’s the correct
      distance) you’d create a new station _name_ (i.e. rename the station).

      cheers,
      Mary




      On Sep 15, 2017, at 1:35 PM, Mike Stickney <MStickney<at>mtech.edu>
      wrote:

      I'm using PDCC v3.8 to generate dataless seed files. For a station that I
      record (not mine), the location code changed, but nothing else. Should I
      treat this location code change as a separate station or a new epoch of the
      same station?
      Here is specific case: 2255.NP.EHZ.-- was changed to 2255.NP.EHZ.0B.
      Thanks for any guidance. -Mike


      Michael Stickney, Director
      Earthquake Studies Office
      Montana Bureau of Mines and Geology
      Montana Tech of the University of Montana
      1300 W Park St
      Butte, MT 59701

      (406) 496-4332 Voice
      (406) 496-4451 Fax
      mstickney<at>mtech.edu
      http://mbmgquake.mtech.edu


      ----------------------
      PDCC | http://ds.iris.edu/message-center/topic/pdcc/ | Unsubscribe:
      pdcc-unsubscribe<at>lists.ds.iris.edu

      Sent from the IRIS Message Center (http://ds.iris.edu/message-center/)
      Update subscription preferences at http://ds.iris.edu/account/profile/


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