1

USArray:Cascadia Initiative

Robert W. BusbyTA Manager

Cascadia Science Planning WorkshopLDEO June 29-30, 2009

Palisades NY

Introduction

• Feb 09: At NSF request, USArray submitted several ideas for consideration of ARRA funding, including redeploying TA in Cascadia.

• April 09: NSF suggested a framework for linking a few specific ideas from PBO, USArray and OBSIP.

• May 09: facility program preliminary plan due “Redeploying the TA in Cascadia”, Guidance: $2.5M, 3-5Yr O&M, 2010 mostly operational

TA-2 Cascadia

• 25 Broadband Stations with 6ch & telemetry

• Permit, construct, install

• Operated for 5 years

• Data Collection via ANF to DMC—open data, real time.

• Picks and Data QC provided

• Includes Strong Motion Sensors

TA-2 Cascadia

Factors in Station Location

• Existing Broadband Stations PNSN, BDSN, GSN, ANSS

• Planned upgrades to Crest, PNSN or BDSN

• Good Quality TA stations with existing vaults

• Good Quality FA stations

• Where’s a gap?

TA-2 Cascadia

A spirited debate ensued, thanks to:

• Mike Brudzinski• PNSN: Paul Bodin, John Vidale• Ken Creager• Richard Allen• USGS Menlo: David

Oppenheimer, David Croker• BDSN: Peggy Hellweg, Barbara

Romanowicz, Doug Neuhauser

• More debate welcomed!

Budget Forming

• Cost of Equipment

• Cost of deployment

• Operations:• Management• Array Operation

Facility• Array Network

Facility• DMC Analysts• Service• Telemetry

Given a bottom Line and a period of performance, we solve for number of stations

We’ve made no plans as to what happens next,Removing the stations is an additional $132,000

Shovel Ready!

Schedule Details:

• Preliminary Project Plan• 15 stations by Sept 30 2010• 10 stations by Dec 31 2010

• Possible Scenarios• 10 stations Oct 2009• 15 stations June 2010

• End of 5 year O&M is 2014-2015

• Monitoring ASAP or in conjunction with OBS?

Notional Plan

Quarterly Plan

2012

2013

Alaska

200 stations85 km station spacing

Existing Stations:AleutiansJuneau

Color scale depicts levels of permafrost

2015?

2014

Data Integration

• What are the plans to integrate the data from onshore and offshore instrumentation? Is there a DCC involved?

• Is this a deployment based task or a facility based task?

IRIS & USArray

C08A Washington

“Iris is sponsered by NSF …dedicated to the operation of scientific facilities for the acquisition, management, and distribution of freely available seismic data.

We’re back…, A04A

backups

USArray Options

TA Style Deployments• Open data • Real time availability• Optimized for

repeated execution • Monitoring and

Picking• Service and

Maintenance• Calibrations &

Metadata provided

FA Style Deployments

• PI chosen focus• Custom Station &

Array designs• Data locally collected• PI serviced and

monitored• Data can be

sequestered• Metadata supported

TA is operated by IRIS as a broad community resource, with a specific, defined implementation target and immediate community access to data.

FA is a collection of instruments for use by PI's in experiments which they define.

Station Design

4/17/2004Design A Ver 1.10

EarthScope US Array

Foam insulation

330

baler

P

S

BAT

cement

BAT

Side ViewVault Detail

6 feet

42.00 Ņ

21.00

24.00

6.00

10-20 feet

solar panel

radiogps

SeismicVault

SiteLayout

4 feet

Top Viewof

vault floor

2"conduit

Gradelev e l

Communications Systems

Cellular Modem

AC VSAT

Solar VSAT

71% Cellular

20% AC VSAT

8% Solar VSAT