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Global Management of Seismic Data: Insights from the GEOSS Seismic Workshop

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lisle
18 diapositives · 330 Views · Sep 22, 2014

The GEOSS Seismic Workshop held on August 23-24, 2005, brought together experts like Peter Davis from the Scripps Institution of Oceanography and USGS to discuss advanced seismic data management on a global scale. The workshop focused on integrating data streams from various instruments, enhancing data storage, and developing robust systems for real-time data transmission. By leveraging the strength of networks like IRIS/IDA and employing modern telemetry strategies, the initiative aims to revolutionize seismic data handling, offering invaluable insights for global monitoring and disaster response.

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  1. Project IDA:Managing Seismic Dataon a Global ScaleGEOSS Seismic WorkshopAugust 23-24, 2005Peter DavisScripps Institution of OceanographyUniversity of California, San Diego

  2. - USGS Albuquerque Seismological Laboratory - IRIS/IDA Group at IGPP, Scripps Institution of Oceanography University of California, San Diego - University Networks and Affiliates GSN NETWORK OPERATORS

  3. GSN Station South Georgia Island • A host organization - university, government lab, or commercial organization. Provides land and in-country operational support. • $250k - $500k facilities • On-going O&M support

  4. Local data acquisition requirements: • Acquire time series from variety of instruments • Persistent data storage for arbitrary interval • Unattended operation • Operator interface for command/control

  5. MK8 DAS IDA Station Processor TCP/IP MK7 DAS NRTS async serial TCP/IP site specific TCP/IP IDA NRTS Gateway to San Diego IMS GCI Gateway to IMS

  6. Data display for local operator: Shift, left click drag (easy!)

  7. UCSD’s experience: base all long haul communication upon TCP/IP Original circuit linking Obninsk to San Diego, 1990-1997

  8. Telemetry links: • local area network (LAN) • leased lines / VSATs • local Internet service provider (ISP) • International dialup Mbarara, Uganda

  9. IRIS/IDA Telemetry Topology

  10. IDA Near Real Time System (NRTS): • developed by UCSD to support GSN communications • handles continuous or segmented time series • manages multiple, simultaneous data connections to distinct locations • provides format conversion tools (miniSEED, SAC, CSS 3.0, CM6) • clients based on toolkit (Antelope, Earthworm, VDL) • autoDRM • supports draft GSN telemetry formats and protocols

  11. NRTS data servers: • Each station may serve data to many recipients • With limited bandwidth, usually serves only one • Hubs positioned for broadband access • Hubs concentrate data from multiple stations

  12. Networks integrating IRIS/IDA Data

  13. IDA Data Collection Center: Comprehensive data analysis

  14. Network Data Collection Center Functions: • Verify precision of timing • Data/data flow problem detection • Metadata management • Maintenance activity reporting

  15. Network Data Collection Center Hardware: • twin SunFire dual processor V240 data servers • SunFire V100 telemetry server • 3.2 Tbyte RAID storage

  16. Data Delivery to IRIS DMC: • immediate forwarding of telemetered data • quality control of telemetered data within 2-3 days • reconciliation with station media within 60 days

  17. What GSN brings to GEOSS: • substantial infrastructure for data collection and dissemination • software architecture adaptable to additional data protocols and formats

  18. How GEOSS will help GSN data management: • Web services holds potential to revolutionize seismic data processing throughout the developing world