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Solid Earth Science Data System for Exploration of Lithospheric Deformation in the Western US

Solid Earth Science Data System for Exploration of Lithospheric Deformation in the Western US. F. Webb 1 , Y. Bock 2 , S. Kedar 1 , S. E. Owen 1 , D. Dong 1 , P. Jamason 2 ; P. Fang 2 , M. B. Squibb 2 , B. W. Crowell 2 , D. Avraham 2

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Solid Earth Science Data System for Exploration of Lithospheric Deformation in the Western US

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  1. Solid Earth Science Data System for Exploration of Lithospheric Deformation in the Western US F. Webb1, Y. Bock2, S. Kedar1, S. E. Owen1, D. Dong1, P. Jamason2; P. Fang2, M. B. Squibb2, B. W. Crowell2, D. Avraham2 1. Jet Propulsion Laboratory, Pasadena, CA2. Cecil H. and Ida M. Green Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, La Jolla, CA AGU Fall Meeting, San Francisco IN42A. Making Earth Science Data Records II December 16, 2009

  2. Solid Earth Science ESDR System PI’s: Frank Webb (JPL) and Yehuda Bock (SIO) • Goal: • Support Earth Surface and Interiors (ESI) science goals by providing mature, long-term surface deformation Earth Science Data Records (ESDRs) for understanding earthquakes and the processes that drive tectonic motion • Objectives: • Deliver verified and validated GPS data products through a portal that facilitates data exploration • Key Innovations: • Web portal technology for data exploration • Verified and validated high-level surface deformation data sets for studying tectonic motions • Workflow that integrates high-level data products with modeling tools

  3. Solid Earth Science ESDR System PI’s Frank Webb (JPL) and Yehuda Bock (SIO) • NASA Relevance: • NASA Earth science enterprise requires efficient methods for knowledge discovery in global multivariate time series data. • Supports ESI focus area, NASA’s component to EarthScope’s Plate Boundary Observatory (PBO), and in situ verification and validation for DESDynI Decadal Survey mission. • Mitigation of risks from geological hazards and development of natural resources.

  4. GPS Data Products GPS Portal for Exploration

  5. Raw Data & Metadata • Data and data products archived from ~2000 global continuous GPS stations archived daily • > 80% in Western Hemisphere • Includes all PBO, SCIGN, BARD stations • All CGPS data and data products collected since early 1990’s on-line @ SOPAC • All metadata for sites in publically available XML-format file

  6. Data Product Generation GPS observables (rinex) L0: GPS Observables JPL - GIPSY SOPAC - GAMIT L1A: Long term raw Geodetic Time Series Station positions Station positions Process Combination -st_filter L1B: Calibrated and Validated Geodetic Time Series Product Station positions L1C: Filtered Calibrated and Validated Geodetic Time Series L2: Geodetic Velocity Fields Time Series Analysis Principal Component Analysis Filtered time series Geodetic Velocities Strain Analysis Legend L3: Strain and Strain Rate Field Geodetic Strain movie Geodetic Strain map

  7. PCA Analysis

  8. Data Products (Level L1C): Daily Coordinate Time Series

  9. Data Products: Time Series • Available Time series: • JPL • SOPAC • Combined JPL & SOPAC • PBO • Can view: • Raw or modeled time series • Residuals • Unfiltered or filtered August 20, 2014

  10. Fit to Non-Linear Time Series LBC1: Oil Extraction CASA: Magma

  11. Data Products (level L2): Station Velocity Maps

  12. Station Velocities wrt NA

  13. Data Products (level L3): Strain and Strain Rate Fields

  14. Strain evolution (GPS Explorer strain movie)

  15. Infrastructure

  16. Cyberinfrastructure Overview

  17. “A Geophysical Resource Web Services (GRWS) query is the search for resources at a repository by a user-agent, employing a filter, as part of a transaction, possibly accompanied by a set of instructions”

  18. GeodeticML • A new set of XML schemas is in development to represent processed GPS data (e.g., position time series) as part of the NASA MEaSUREs project. • Schemas include: • file metadata • monument • position • velocity • processing • data elements • The schemas and a sample xml instance are available at http://sopac.ucsd.edu/projects/xml/measures/index.html

  19. GPS Explorer Demo (movie here)

  20. Summary • Project supports EarthScope and NASA ESI science goals by providing mature, long-term surface deformation data products for understanding earthquakes and the processes that drive tectonic motion • We are delivering verified and validated GPS data products through a portal that facilitates data exploration • Key Innovations to date: • Web portal technology for data exploration • Verified and validated high-level surface deformation data sets for studying tectonic motions. • A workflow that integrates high-level data products with modeling tools • GPS Explorer Website: http://geoapp03.ucsd.edu/gridsphere/gridsphere

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