Current Status of USArray and EarthScope

1
Current Status of USArray and EarthScope

• Thanks to Bob Woodward
• USArray Director

2
EarthScope Components

• Plate Boundary Observatory (PBO)
• GPS measurements at 900 stations in western US
• Strain meter installations
• 71 borehole strainmeters
• 5 laser strainmeters
• 75 borehole seismic stations
• San Andreas Fault Observatory at Depth (SAFOD)
• Instrumented borehole
• Core Samples
• High Sample Rate Seismic Recordings
• US Seismic Array (USArray)
• Transportable Array
• Flexible Array
• Reference Network
• Magnetotelluric Network

3
Data Management

• Portal is launched

EarthScope Portal
All Time series data are available at the IRIS
DMC from all EarthScope Components In FDSN SEED
format
4
Transportable Array

• As of December 9, 2008
• 693 commissioned
• 449 operating
• 244 removed

November 2007
November 2008
5
Canada Collaboration

• POLARIS-USArray collaboration

6
Flexible Array

• Equipment
• 326 broadband
• 120 short period
• 1700 active source

7
Reference Network

• gt 100 stations in contiguous US
• USGS ANSS, Regional Networks, USArray Permanent
  Array, TA

8
Magnetotellurics
Backbone
Transportable Array
MBB06 Miles City, MT

• 170 campaign sites (2006, 2007, 2008)
• Backbone is complete
• 7 backbone sites

9
DMC Data Holdings

• The DMC manages
• 84 terabytes of waveform data
• 14 terabytes of EarthScope data
• 9 terabytes of USArray data

10
Gigabytes Shipped by Category
11
Composite USArray Performance
12
DMC USArray Products

• ANF Phase Picks (4/13/04 - 8/31/08)
• SPADE by month
• ISF, XML, Report View
• SeismiQuery
• ISF, CSV, XML

13
DMC Products Tomographic Models

• Approach
• Convert existing models to the common format
• Simple text format
• Luca Postpischi compact format
• netCDF format
• Currently Supported Models
• NA04 - VanDerLee, S3D - Romanowicz, A1D -
  Romanowicz,
• CUB - Shapiro, and SEND2 Lees
• REM 2/4 degree (UNAVCO)
• Next Step
• Compilation of GMT scripts to slice models
• Browser based front-end to drive GEON-IDV to
  produce slices through the models
• Coordination with FDSN
• FDSN Working Group III
• Tuesday 13 January 2009 at 5PM