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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. FDSN Archive for Continuous Data at the IRIS DMC. FDSN Backbone Network 200 stations currently Plans to increase in size to 300

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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 Holdings, Data Organization, and Data Access By Tim Ahern, Program Manager IRIS DMS

  2. FDSN Archive for Continuous Data at the IRIS DMC • FDSN Backbone Network • 200 stations currently • Plans to increase in size to 300 • Americas need better representation

  3. The IRIS Data Management System ASL DCC IDA DCC DMC KZNet Almaty KNET Bishkek UofW Network Ops Data QA Data QA Data QA

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

  5. More than 14,264seismic stations from 267networks and 469 temporary deployments have data available through the IRIS DMC

  6. 1,495 Stations in Central and S. America 291 Permanent, 625 PASSCAL, 170 SEIS-UK, 75 OBSIP 60 stations have real time telemetry

  7. 1,997stations telemetered in real timefrom 91different networks

  8. 60 Stations come in real time to the IRIS DMC (not including TA, IM, etc)

  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 120 terabytes and growing at 20terabytes 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. Data Handling Interface (DHI)Access to Distributed Data Centers 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 DHI Clients VASE SOD jWEED etc.

  15. DHI Enabled Centers Existing Planned Planned (Events)

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

  17. BUD Buffer of Uniform Data Real Time Data Flow from DMC SeedLink DHI Antelope Earthworm SeisGram 2K Seiscomp3 VASE SOD jWeed EMM DHI2 mseed

  18. The IRIS Data Management Center • Most of the 120 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 • 267 permanent seismic networks • 469 temporary deployments • 14,264 stations • 1,997 stations in 91 networks in real time as of 2010

  19. Regional Exchange of Earthquake Data (REED) • Focus on solving data communication issues • Station to data center • Cellular modems • Radio modems • Data center to Internet • Fiber installation • Data tariffs • Past efforts • Central Asia • SW Pacific Tsunami Task Group • Can the REED effort help your networks

  20. 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

  21. Thanks for your attention

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