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Introduction to IRIS Data Management System

Learn about the IRIS Data Management System, its data holdings, organization, and access. Discover the types of data IRIS manages, the tools for data requests, and international activities supported by IRIS. This informative guide is available to all seismologists.

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Introduction to IRIS Data Management System

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  1. A short introduction to the IRIS Data Management SystemData Holdings, Data Organization, and Data Access By Tim Ahern, Director of Data Services, IRIS

  2. FDSN Archive for Continuous Data at the IRIS DMC • FDSN Backbone Network • 200 stations currently • Plans to increase in size to 300 • Focus on real time data sharing

  3. The IRIS Data Management System ASL DCC IDA DCC DMC KZNet Almaty UofW Network Ops Data QA Data Curation & Distribution Data QA

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

  5. More than 16,152seismic stations from >250 networks and 500 temporary deployments have data available through the IRIS DMC

  6. 2,268stations telemetered in real timefrom 98different networks

  7. 2,361 Stations in SE Asia

  8. 201 SE Asian Stations come in real time to the IRIS DMC

  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 152 terabytes and growing at 27terabytes 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. BUD Buffer of Uniform Data Real Time Data Flow from DMC SeedLink DHI Antelope Earthworm SeisGram 2K Seiscomp3 VASE SOD jWeed EMM DHI2 mseed

  15. The IRIS Data Management Center • Most of the 152 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 • >250 permanent seismic networks • ~500 temporary deployments • 16,152 stations • 2,249 stations in real time as of 2011

  16. Three International Activities Supported by IRIS DMS • Metadata workshops • Annual cycle • moving from SE Asia, Africa Middle East, Latin America • Italy, Brazil, Malaysia, Egypt, Brazil, Thailand • Regional Exchange of Earthquake Data (REED) • Focus on solving data communication issues • Station to data center • Data center to Internet • Past and current efforts • Central Asia • SW Pacific Tsunami Task Group • Africa • Support for SeisComp-3 • Configuration GUI, installation simplification, StationXML

  17. 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

  18. Thanks for your attention

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