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by Tim Ahern Program Manager, IRIS Data Management System

The International Federation of Digital Seismographic Networks (FDSN): Building International Collaborations. by Tim Ahern Program Manager, IRIS Data Management System Managing Waveform Data and Related Metadata for Seismic Networks Petaling Jaya, Malaysia October 21-26, 2007.

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by Tim Ahern Program Manager, IRIS Data Management System

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  1. The International Federation of Digital Seismographic Networks (FDSN): Building International Collaborations by Tim Ahern Program Manager, IRIS Data Management System Managing Waveform Data and Related Metadata for Seismic Networks Petaling Jaya, Malaysia October 21-26, 2007

  2. Overview of the Talk • The FDSN • The History of the FDSN • FDSN’s Role in International Coordination • Membership • Goals • FDSN Network • Data Exchange at many Levels • Real Time Data Exchange • Distribution of Data • Coordination at many scales using standards

  3. The Reason the FDSN was Formed • In the early 1980s broadband seismology was in its infancy • The scientific problem was global • Costs were high • No one country could build a global network by itself • The FDSN was formed to address the above situation • Bottoms Up • Lead by leaders in seismology

  4. Coordination of the siting of seismic stations 2000 km spacing in the FDSN Backbone Higher density Regional Networks Establishment of standards in instrumentation 24 bit, 20 sample per second continuous Broadband (World Wide Long Period and World Wide Short Period channels can be derived from a single a stream) Establishment of Data Exchange Formats S.E.E.D. Standard for the Exchange of Earthquake Data Providing Open Access to Data The FDSN Network Promotes Near Real time data access Access to Quality Controlled Data with minimum delay FDSN Goals

  5. Australia, Canada, China(SSB), France, Germany(GRF), Italy, Japan, Netherlands, Soviet Union, United Kingdom, United States (IRIS/USGS) Originally 12 FDSN Members1986- 1988

  6. Australia Austria Brazil Bulgaria Canada Chile China (CSB & CAS) Columbia (Ingeominas & Osso) Costa Rica Croatia Czech Republic Denmark Ecuador Egypt European Union (ORFEUS) Finland (Helsinki & Sodankyla) France (Geoscope & ReNaSS) Georgia Germany(GEOFON & GRSN) Greece (NOA, Thessaloniki) Hungary Iceland Indonesia Iran Israel Italy (ING-V & OGS) Jamaica Japan (ERI & NEID) Kazakhstan Macedonia Malaysia Mexico Netherlands New Zealand Nicaragua Norway Poland Portugal(CGUL & IST) Romania Russia Slovakia Slovenia South Africa Spain Sweden Switzerland Taiwan Tajikistan Thailand United Arab Emirates United Kingdom USA (IRIS, NCSN, PRSN, SCSN & USGS) Uzbekistan FDSN Membership in 2007 66 institutions in 53 countries Yellow indicates countries that have contributed to the FDSN Archive Orange indicates countries that have agreed to contribute soon

  7. Host MMD (Malaysia) Co Sponsors IASPEI JAMSTEC (Japan) GNS (New Zealand) IRIS (USA) FDSN Participants Australia China Germany Indonesia Japan Malaysia Netherlands/ORFEUS New Zealand Russia Taiwan Thailand Uzbekistan USA FDSN Organizations

  8. Other Participants Bangladesh India Nepal Papua New Guinea Philippines Sri Lanka Vanuatu Vietnam Non-FDSN Organizations Consider Joining the FDSN http://www.fdsn.org/FDSNmemberInfo.htm

  9. FDSN Network - 300 stations199 at FDSN Archive (IRIS DMC) with 106 in real time 28 contributing networks

  10. Weather Asian Regional Japan WMO WIS Americas Singapore Thailand European Regional Italy Chile Brazil Taiwan China Germany Malaysia Asian/Regional Canada US Spain Indonesia Vietnam France Africa Egypt Niger S. Africa Coordination at Different Scales FDSN Network Global IRIS

  11. Real time data reception: 1659 Stations telemetered in real time from 67 different networks (~7000 channels) NEIC About 700 stations on a normal day 925 stations & 4237 channels received in the last 60 days

  12. SN MY PS BK AT MS TA NN LD PN LI AZ ER Archive IU II AK H2 IC EQ NP FA CU LISS (4) CI Antelope ORB (28) IM RO GT CD-1 AU KZ TW MY KN CZ BATS 3days after Real time BUD Buffer of Uniform Data ER XX SC PE AR NM ET G JP PL IW WY MB SEEDLink (11) UK Earthworm Waveserver (24) UU CH RE CH NL PM CC UW MN IE US AT GE PBO NZ KY LB PR PB UO AV PE NE Real Time Data Management Effective Integration into the Existing IRIS Real Time System from 67 Networks

  13. Real time data distribution BUD SeedLink DHI LISS autoDRM

  14. Distributed Request Servicing • NetDC - email based • Data Handling Interface - API • Web Services • WSDL/SOAP/XML • REST • OGC Web Mapping Services

  15. Linking Global Data Centers

  16. Shipments by Year from FDSN Archive @ IRIS

  17. Shipments from the IRIS DMC 250,000 customized shipments 67,000 on-line shipments 25.0 terabytes of observational data (6.34 megabits/second) Data Access of Several Types

  18. The Purpose of this Workshop • Introduce the theory behind seismometry and signal processing • Promote the use of FDSN standards for data exchange • Introduce tools that help you meet the FDSN metadata standards • Meet other seismologists working in this region

  19. Thank you for your attention

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