[OBSICtec] Alaska Amphibious Community Seismic Experiment (AACSE): Horizontal component orientations available

[Douglas Toomey]

Hi Andrew,

Nice to see your name pop up and see that you are at WHOI now.  Hope that goes well and good luck.

Doug

On Mar 10, 2021, at 6:46 AM, Andrew H Barclay <abarclay at whoi.edu<mailto:abarclay at whoi.edu>> wrote:

OBSIC has measured the orientations of the horizontal components of 48 of 75 OBS deployed as part of the AACSE (FDSN network code XO).

The measurements are available at:
http://ds.iris.edu/data/reports/XO_2018_2019/AACSE_orientations_DLOPy.csv<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=http*3A*2F*2Fds.iris.edu*2Fdata*2Freports*2FXO_2018_2019*2FAACSE_orientations_DLOPy.csv&data=04*7C01*7Cobsictec*40whoi.edu*7C40176583ee224179eb5a08d8e3d34134*7Cd44c5cc6d18c46cc8abd4fdf5b6e5944*7C0*7C0*7C637509843768384316*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C1000&sdata=MP8*2BM56eUxpH*2BlCqfIaYG2HtZx2P4iBYrFKxwAvSQh4*3D&reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSUlJQ!!C5qS4YX3!QXC_Ks2AMCLqhi_96g-EmBie85YEn9Keg_wdsF9Qpru0WYLjHeAsBidkcr0Sug$>

A description of the method used is at:
http://ds.iris.edu/data/reports/XO_2018_2019/AACSE_orientations_Readme.pdf<https://urldefense.com/v3/__https://nam02.safelinks.protection.outlook.com/?url=http*3A*2F*2Fds.iris.edu*2Fdata*2Freports*2FXO_2018_2019*2FAACSE_orientations_Readme.pdf&data=04*7C01*7Cobsictec*40whoi.edu*7C40176583ee224179eb5a08d8e3d34134*7Cd44c5cc6d18c46cc8abd4fdf5b6e5944*7C0*7C0*7C637509843768394317*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C1000&sdata=lQdk00tIKJeye4d4Cq6ayYZ1o8Eii8lD8sxuQdUvC04*3D&reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSU!!C5qS4YX3!QXC_Ks2AMCLqhi_96g-EmBie85YEn9Keg_wdsF9Qpru0WYLjHeAsBidh3ROoeA$>

We have tried to address the subjectivity inherent in orientation estimates by using a well-documented and largely automated method that yields realistic uncertainties and results that can be easily reproduced.  We’d welcome feedback on this approach and on the AACSE measurements themselves.

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________________________________________
Prof. Douglas Toomey
Director, Oregon Hazards Lab
1272 Earth Sciences
University of Oregon
Eugene, OR 97403-1272

https://ohaz.uoregon.edu
https://blogs.uoregon.edu/dougtoomey/
http://geophysics.uoregon.edu
(541) 346 5576 (work)
(541) 632 2526 (mobile)
________________________________________

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