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By Tim Ahern Program Manager, IRIS Data Management System Secretary, FDSN

The International Federation of Digital Seismographic Networks (FDSN): Building International Collaborations. By Tim Ahern Program Manager, IRIS Data Management System Secretary, FDSN. 9-11 May 2007 Kiel, Germany. Overview of the Talk. The FDSN The History of the FDSN

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By Tim Ahern Program Manager, IRIS Data Management System Secretary, FDSN

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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 Secretary, FDSN 9-11 May 2007 Kiel, Germany

  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. Raison d’etre • 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 • This should sound familiar

  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 White indicates countries pending FDSN membership approval

  7. FDSN Network - 300 stations199 at FDSN Archive (IRIS DMC) with 106 in real time 26 contributing networks

  8. Weather Italy Germany WMO WIS Italy Germany Japan Chile Brazil Switzerland Spain France Asian/Regional Taiwan China Canada US Austria France Egypt Niger S. Africa Coordination at Different Scales FDSN Network Global European Regional Asian Regional Americas IRIS Africa

  9. Real time data reception: 1522 Stations telemetered in real time from 54 different networks (~6350 channels) NEIC About 700 stations on a normal day 925 stations & 4237 channels received in the last 60 days

  10. 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 (27) IM 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 IW WY MB SEEDLink (10) 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 65 Networks

  11. Real time data distribution BUD SeedLink DHI LISS autoDRM

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

  13. Linking Global Data Centers

  14. Shipments by Year from FDSN Archive @ IRIS

  15. Shipments from the IRIS DMC 280,000 customized shipments 66,000 on-line shipments 16.0 terabytes of observational data (3.9 megabits/second) 1.03 billion time series (31 per second)

  16. Some Thoughts • Bottoms up is usually good in drinking and in building organizations • Focus on a few key and active players that can really make things happen • Data Sharing in Real Time and without restrictions is optimal • But develop methods to provide credit • Interoperabilty with other Domains is increasingly important • Web services and web mapping services

  17. Thank you for your attention

  18. Current Archive at IRIS 60 terabytes from 93 permanent networks • 59 terabytes • Data from • GSN • FDSN • JSP • US Regional Nets • PASSCAL • More PASSCAL data than GSN data Growing at 11-14 terabytes per year

  19. Storage Capacity • Mass Storage System • Isilon IQ6000 • 90 terabyte capacity • Mass Storage System • StorageTek Powderhorn • 1.2 petabyte capacity

  20. 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 Access to Distributed Data Centers IRIS NCEDC SCEDC SCEPP ORFEUS* Memphis Geofone ----------- Canada ISC Geoscope ORFEUS Asia --------- MedNet DHI Clients VASE jWEED SOD

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