[OBSIPtec] Cascadia [7D] 2014-2015 LDEO APG Data Now Available at IRIS DMC

[Kasey Aderhold]

The last six redacted APG channels have been archived for the Year 4 
(2014-2015) Cascadia deployment. At this time I would also like to bring 
your attention to two community identified issues:

  * Year 2 Station J09B has an error in the station latitude
  * Year 4 LDEO stations may have a polarity reversal on the vertical
    channels

We are currently working on these issues and will notify the community 
of any changes made to the data through the OBSIPtec mailing list. If 
you have questions about data from the Cascadia Initiative or other 
OBSIP experiments, please get in touch with me at kasey at iris.edu.

Cheers,
Kasey

------------------------------------------------------------------------

The Cascadia Initiative community seismic experiment marine deployment 
occurred offshore Washington and Oregon, with ocean bottom seismometers 
deployed and recovered from 2011 to 2015. Instruments that were deployed 
came from the Lamont-Doherty Earth Observatory, the Scripps Institution 
of Oceanography, and the Woods Hole Oceanographic Institution. Land 
stations were also deployed during this experiment and data from both 
off-shore and on-shore stations are archived and available under 
the_CASCADIA <http://ds.iris.edu/gmap/_CASCADIA>virtual network code at 
the IRIS DMC.

Data from the LDEO, WHOI, and SIO ocean-bottom instruments deployed in 
2014 and recovered in August-October 2015 are archived and publicly 
available under station code7D 
<http://ds.iris.edu/gmap/7D?timewindow=2011-2017>at the IRIS DMC. This 
data can be accessed using all IRIS DMC request tools. If you have any 
problems accessing this data or have questions, please contact Kasey 
Aderhold from the OBSIP OMO office at kasey at iris.edu. Data includes 
(*bold *indicates newly added):

  * 27 LDEO broadband stations (unfiltered high-rate Navy redacted
    data*, *high-rate data filtered at 3 Hz, *APG and temperature
    channels for stations FS15D, G18D, G25D, G26D, G27D, and G34D*)
  * 8 SIO ABALONE and 3 SIO LP4x4 broadband stations (unfiltered
    high-rate Navy redacted data, high-rate data filtered at 3 Hz, and
    DPG channels)
  * 24 WHOI broadband stations (unfiltered high-rate Navy redacted data,
    high-rate data filtered at 3 Hz, raw 1 Hz, and DPG channels)
  * 10 WHOI episensors (unfiltered high-rate Navy redacted data,
    high-rate data filtered at 3 Hz and raw 1 Hz)

Please note that theCascadia Initiative Channel Naming Conventions 
<http://www.obsip.org/experiments/experiment-list/2011/cascadia/cascadia-channel-naming-conventions>have 
been updated to reflect the different sampling rates of the two SIO 
instrument types.

More information about the Cascadia Initiative is availablehere 
<http://www.obsip.org/experiments/experiment-list/2011/cascadia> and in 
the DMC report folder <http://ds.iris.edu/data/reports/7D_2011_2017/>.

-- 
Kasey Aderhold
Project Associate | IRIS OBSIP Management Office
202-682-2220 x163 | kasey at iris.edu

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