1. Cascadia Facility Purpose
“...to support EarthScope and MARGINS science objectives, with particular emphasis on onshore/offshore studies ...” [FAQ #1]

2. Plan A: “The Grid”
70 km spacing
59 OBS’s
25 onland

3. Plan B: 2-stage

4. Plan C: Synoptic view of the Trench
(is this the right
on-land configuration for
this plan?)

5. Decisions decisions...
Choice of plan impacts OBS purchase decisions immediately
deep vs. shallow water etc.
For some plans we may reevaluate onshore (TA) configuration

6. 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

8. PBO component
Additional processing?
Timing recommendations?