[OBSIPtec] SIO Response File Update: Cascadia DPGs Years 1,2,3

[Jessica Lodewyk]

Hi all,

SIO has been working to refine their OBSIP instrument response 
information used in the Cascadia Initiative and has updated the response 
of the Differential Pressure Gauges (DPGs). The changes to the response 
files impact some Cascadia data that were already archived in the IRIS DMC.

Updated dataless files for Cascadia Year-1, Year-2, and Year-3 with the 
new DPG response have been uploaded to the DMC.  Updates and changes to 
the Cascadia dataset in the IRIS DMC can be tracked on the OBSIP 
website: 
http://www.obsip.org/experiments/experiment-list/2011/cascadia/cascadia-data-updates-and-changes/

Summary of DPG response updates:
1.           Stage 1 sensitivity change
2. Updated poles (1) and zeros (1)

NOTE:  These changes will result in response updates to dataless files 
exclusively, all time series data for all instruments remain unchanged.

If you have any questions or concerns, please contact Jessica Lodewyk at 
jessica.lodewyk at iris.edu.

Thanks,
Jessica Lodewyk
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