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By Tim Ahern, Program Manager IRIS DMS

A “Short” Introduction to the IRIS Data Management Center Data Holdings Data Organization and Data Access. By Tim Ahern, Program Manager IRIS DMS. ASL DCC. Lamont WQC. IDA DCC. DMC. KZNet Almaty. UofW. The IRIS Data Management System. Network Ops Data QA. Data QA. US Regional

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By Tim Ahern, Program Manager IRIS DMS

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  1. A “Short” Introduction to the IRIS Data Management CenterData HoldingsData Organization andData Access By Tim Ahern, Program Manager IRIS DMS

  2. ASL DCC Lamont WQC IDA DCC DMC KZNet Almaty UofW The IRIS Data Management System Network Ops Data QA Data QA

  3. US Regional Networks USArray GSN PASSCAL FDSN DMC Non-FDSN Networks PBO SAFOD Data Sources IRIS EarthScope

  4. More than 7,500 seismic stations have data available through the IRIS DMC

  5. Stations in SE Asia and Vicinity With Metadata

  6. 1659 Stations telemetered in real timefrom 67 different networks

  7. Real Time Stations in SE Asia and Proximity Contributing to IRIS/FDSN Real Time with Metadata

  8. Data from 1966 -Present Temporary • Targets of Opportunity • 1966 - current • Unstructured Data • Apollo • Temporary Experiments • 1986 - current • Permanent Networks • 1970 - current Permanent Networks Targets of Opportunity

  9. Seismological Broadband Seismometers Strong Motion Buildings Structures Free Field Geophones Hydrophones Meteorological Wind Speed Wind Direction Temperature Humidity Rain Gauge Solar Radiaton Insolation/Pyranometer Microbarograph Relative/Absolute Infrasound microphones Types of Sensor Data IRIS manages • Geophysical • Magnetotelluric • Magnetometer • Electric Field • Strainmeter • dilatational • tensor • Tidal Pendulum • Gravimeter • conventional • superconducting • Tiltmeter • Creep Meters • Water Column • Water Current • Depth • Temperature • Water Level

  10. IRIS Archive at 65 terabytes and growing at 13 terabytes per year

  11. Data Request Tools at the IRIS DMC

  12. Request Methods

  13. CNSN Canada NetDC Request NCEDC USA SCEDC USA FDSN.ORG IRIS DMC USA GEOSCOPE France PACIFIC 21 Japan ORFEUS Netherlands Networking Data Centers by Email • Routes user requests between data centers • Wraps normal Data Center operations within an application layer • Coordinates delivery of information back to a user • Peer based system • Any NetDC node can act as a hub data center • Or FDSN.ORG can be used MedNet Italy

  14. Distributed Data Center Technologies FISSURES and the Data Handling Interface

  15. DHI Data Center DHI Data Center IDL Network Network IDL Waveforms Waveforms IDL Events Events DHI Data Center DHI Data Center Network Network Waveforms Waveforms Events Events Data Handling Interface (DHI)Access to Distributed Data Centers DHI Clients VASE SOD jWEED etc.

  16. Distributed Data Center Technologies DHI Enabled Data Centers

  17. DHI Enabled Centers Existing Planned Planned (Events)

  18. DHI Enabled Centers- European Existing Planned Planned (Events)

  19. Using Real Time Data from the IRIS DMC

  20. LISS SeedLink DHI BUD Buffer of Uniform Data Real Time Data Flow from DMC Antelope Earthworm SeisGram2K VASE SOD jWeed EMM

  21. The IRIS Data Management Center • Most of the 65 terabytes are in miniSEED format • Metadata has been provided in dataless SEED format • The huge holdings are consistent and complete due to adherence to FDSN standards • Data from • 69 different seismic networks • 7,500 stations • 1,659 station in real time as of 2007

  22. A Global Resource • The IRIS DMS is available to all seismologists at the same priority level • All data are open • There is no charge for any of IRIS services • Only one piece of software has limited distribution • Antelope only available to Full IRIS Members • SAC available to almost all seismologists

  23. Thanks for your attention

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