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Published byLaurence Sharp Modified over 6 years ago
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Logistics Wine bill ($12 per person, for drinkers)
Does everybody know how they get to the airport?
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Cascadia Facility Purpose
“...to support EarthScope and MARGINS science objectives, with particular emphasis on onshore/offshore studies ...” [FAQ #1]
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Plan A: “The Grid” 70 km spacing 59 OBS’s 25 onland
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Plan B: 2-stage
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Plan C: Synoptic view of the Trench
(is this the right on-land configuration for this plan?)
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Decisions decisions... Choice of plan impacts OBS purchase decisions immediately deep vs. shallow water etc. For some plans we may reevaluate onshore (TA) configuration
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Strawman Timing & Calendar
first 1/2 OBS’s, most TA 2011- end full array #1 2013- early full array #2 (or do some OBS’s advance elsewhere?) 2014 onward: What happens TA/OBS? 15 mo deployment, 3-6 mo turnaround?? * need to clarify & decide
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PBO component Additional processing? Timing recommendations?
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Seismicity rates (EHB)
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Cascadia Seismicity 4 M>4.x thrustzone events in 15-20 years
1-2 VLF’s reported x fewer intraslab events in N than (Alaska, Nankai, ...) BUT high rates of “deep” tremor
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