Hello,
Dear Paul and Mehmet I am glad to receive your responses.
I would like to state that we are using taurus digitizer at each
site.
As I want to utilize this station anyhow please can you elaborate
the idea using option 9 in s-file.
As after your response I pinged and collected some details about
the stations' state of health during 2012.
The information I received explains that the GPS at ABI during
the above mentioned period was not working and we are at loss
with three months of data. The VSAT network was still sending the packets
of data for this particular station.
So for now I am with another query which may be a little bit silly but, can
we synchronize the bad station time on the basis of already existing other
stations time information.
With Regards
--
*SANJAY SINGH NEGI *
*Senior Research Fellow(SRF)*
*Wadia Institute of Himalayan Geology*
*33 - GMS Road,*
*Dehradun.*
*Mob no.- +91-9536145596*
*-------------------------------------------------------------------------------------------------------------------------------------------------*
ᐧ
On Fri, Feb 20, 2015 at 9:51 PM, Yrd.Doc.Dr.Mehmet Ozyazicioglu <
[email protected]> wrote:
> I agree with the possibility of GPS error , occasionally we also suffer
> from similar GPS faults in Turkey.
> In this case until you correct the GPS antenna or card, you can still use
> option 9 in s-file to locate using
> P minus s times
>
> Best regards,
>
> Mehmet
>
> ------------------------------
> *Kimden: *"Paul Friberg" <[email protected]>
> *Kk: *[email protected]
> *Gönderilenler: *20 Şubat Cuma 2015 15:49:07
> *Konu: *Re: [seisan] Station pick error
>
> Sanjay,
> If you are 100% certain about your P and S picks, and If the lat/lon of
> your station ABI is still correct, then it must be a timing issue. Your
> station ABI may be suffering a timing advance or lag problem. It is not
> unusual for modern digitizers to lose GPS lock and drift...but it seems
> pretty severe from the screenshots you showed. Could there be vegetation
> covering the GPS antenna or some other blockage. What flavor of digitizer
> is ABI running?
>
> Regards,
>
> Paul
>
> On Fri, Feb 20, 2015 at 8:11 AM, Sanjay Singh Negi <[email protected]>
> wrote:
>
>> Hi all,
>> I have a continuous time series earthquake data from a small
>> seismic network. All the stations were initially working very well. But in
>> recent, after repairing one of the seismic station ABI, the P and S phase
>> picks on this station shows very bad result.
>> When I remove this station and consider others the result are of-course
>> good, but I am not able to resolve why after introducing this station the
>> errors abruptly increase.
>> I am attaching the result of both, ABI station included and when not
>> included.
>>
>>
>> Kindly help me on this matter.
>>
>> [image: Inline image 2]
>>
>> [image: Inline image 3]
>>
>> Regards
>>
>> *SANJAY SINGH NEGI *
>> *Senior Research Fellow(SRF)*
>> *Wadia Institute of Himalayan Geology*
>> *33 - GMS Road,*
>> *Dehradun.*
>> *Mob no.- +91-9536145596 <%2B91-9536145596>*
>>
>> _______________________________________________
>> seisan mailing list
>> [email protected]
>> http://mailman.uib.no/listinfo/seisan
>>
>>
>
>
> --
> *Paul Friberg*
> -------------------
> *CEO/Seismologist*
> *ISTI* == Instrumental Software Technologies, Inc.
> *Geophysical Services and Software*
>
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>
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