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Current Status of USArray and EarthScope

This article discusses the current status of the USArray and EarthScope projects, including the various components and data management. It highlights the Plate Boundary Observatory, GPS measurements, strain meters, borehole seismic stations, and more.

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Current Status of USArray and EarthScope

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  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 EarthScope Portal • Portal is launched 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 > 100 stations in contiguous US USGS ANSS, Regional Networks, USArray Permanent Array, TA

  8. Magnetotellurics Transportable Array Backbone • 170 campaign sites (2006, 2007, 2008) • Backbone is complete • 7 backbone sites MBB06 Miles City, MT

  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

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