International Federation of Digital Seismograph Networks

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International Federation of Digital Seismograph
Networks

• The FDSN
• is the organization that brings together the
  digital broad-band seismographic networks
  throughout the world
• has commission status within IASPEI, the
  International Association of Seismology and
  Physics of the Earths Interior, and IUGG, the
  International Union of Geodesy and Geophysics
  (ICSU)
• was established in 1986 (20 years !) to support
  the establishment of new digital broad-band
  seismographic technology, primarily for
  scientific network.
• as many national networks moved and are moving to
  digital technology, FDSN has assumed the
  coordination role among all modern seismographic
  networks worldwide
• is not an inter-governmental organization

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Federation of Digital Seismic Networks

• The FDSN
• promotes the installation of modern digital
  broad-band stations over 2400 BB digital
  stations globally today, over 1000 openly
  available in real-time telemetry
• coordinates global activities in station site
  selection, data exchange, and instrumentation
  standardization
• promotes inter-operability among infrastructures
• promotes a variable-geometry approach, with a
  backbone of over 300 globally distributed,
  high-quality stations, enhanced by a mosaic of
  national and regional networks
• promotes the deployment of ocean-bottom seismic
  observatories, in cooperation with other
  international ocean programs (ION), to complement
  the coverage of land-based seismic instrumentation

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Federation of Digital Seismic Networks

• The FDSN
• maintains an advanced system of networked data
  centers to oversee the collection, archive and
  distribution of the continuous and event
  waveforms, with primary FDSN archive at IRIS DMS
• promotes open-data access all FDSN member
  networks agree to open-data availability each
  member contributes at least one station to the
  global archive and most members allow open access
  to waveform data at their data centers
• promotes real-time access to data
• provides global monitoring of one of the most
  important natural hazards - earthquakes - and
  shares the GEOSS goal of achieving a global
  strategy for coordinated Earth observation FDSN
  is a GEO participant, building the land-based
  component for one of the priority targets for the
  GEOSS 10-yr implementation plan

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FDSN Structure

• Chairman and Secretary
• ExeCom
• SteerCom
• Working Groups I. Station Siting and
  Instrumentation
• II. Data Exchange
• III. Software Coordination
• IV. CTBT Coordination
• V. Portable instrumentation
• Annual assemblies
• Regional assemblies

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FDSN Products
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FDSN Membership

• EUROPE
• ASN ZAMG Austria
• BNN BAS-GI Bulgaria
• CZNET IPE-GI Czech Rep.
• DSN KMS Denmark
• GEOSCOPE IPGP France
• FBSN ReNaSS France
• GEOFON GFZ Germany
• GRSN-GRF BGR Germany
• NOA Greece
• HNSN GGRI Hungary
• IMO Iceland
• MEDNET INGV Italy
• INSN INGV Italy
• NIBN OGS Italy
• NORSAR Norway
• ORFEUS KNMI Netherlands
• NSN KNMI Netherlands
• PLSN IGFPAN Poland

ASIA PACIFIC OCEAN AN AGSO
Australia RSSC-NAA Azerbaijan Dubai CDSN-NCDSN
CSB China IG-ASG Georgia Indonesia IIEES
Iran ISN GII Israel PACIFIC 21 ERI
Japan NIED Japan MSN MMD Malaysia GeoNet
GNS New Zealand BATS IES Taiwan IG-AST
Tajikistan TMD Thailand PTWC Pacific Ocean
AMERICAS CNSN GSC Canada SBA U.deChile
Chile IG EPN Ecuador Jamaica MNSN UNAM
Mexico PRSN UPR Puerto Rico SCSN
Caltech/USGS USA BDSN U.Berkeley USA GSN
IRIS USA ANSS USGS USA AFRICA ENSN NRIAG
Egypt South Africa Africarray African
continent
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FDSN coverage 2005
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FDSN expanding coverage in 2006-2007
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196 out of 300 available online at the FDSN
primary archive in DMS
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Regional versus global

• The future Earth coverage will depend
  increasingly on regional and national networks
• These - are supported for surveillance and alert,
  
• - often have more stable budget and recognition
• - are less interested in technical developments
• - require real-time data availability and
  processing
• - are less strict about VBB standards
• - participate less in FDSN activities
• - rarely have science under their mandate
• Extreme challenge to organize an efficient data
  exchange
• National priorities and requirements,
  restrictions to data access

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Waveforms for global warnings
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Seismic stations in the Euro-Mediterranean
46 countries 150 infrastructures 800 BB
stations 1800 SP stations 3000 SM stations
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Global hyerarchical Net.DC
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International organizations in seismology

• The issue of who can represent the seismological
  community in the various international frameworks
  has become a very important one.
• Seismology is not covered under the mandate of
  any inter-governmental organization (i.e. WMO,
  IOC, UNESCO)
• IASPEI is within the ICSU framework
• FDSN is a voluntary club
• ISC is a focused organization with one single
  mandate
• National centers offer sometimes a global
  coverage, notably NEIC/USGS
• Regional centers (EMSC, ORFEUS) play indeed a
  regional role
• Global networks (GSN/IRIS, GEOFON, GEOSCOPE) are
  science-driven and science-supported, although
  some shift is ongoing after Sumatra
• No international agency is responsible for
  earthquake warning or hazard
• CTBTO is an integovernmental organization, with a
  single mandate
• WMO is evaluating if it should bring seismology
  back under its mandate

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GEOSS

• The Group on Earth Observation (GEOSS) signed by
  60 countries and 40 participating organizations
  in 2005, approving the GEOSS (Global Earth
  Observation System of Systems) 10-yr plan
• Mandate coordination of the Earth observing
  systems, integration of space-based and in-situ
  segments, North-South technology transfer
• UN-style structure Committees and WGs
  Secretariat at WMO Plenary Assembly once per
  year 106 Tasks 2-yr, 6-yr and 10-yr goals
• Integration with various international
  organizations and consortia CEOS, GGOS, IGOS,
  GOS, GOOS, GTOS, GCOS, GLOSS, IGBP, IGOL, GARS,
  NCRP, IOC, IGFA
• FDSN is a participating organization, GSN a
  national system, GSN/FDSN a global system, DMS a
  national and global system
• Strong top-level involvement of NOAA and USGS,
  but little concrete involvement in activities so
  far
• Global representation for seismology secured by
  strong commitment of FDSN Chairman, FDSN ExeCom
  and GSN chair

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Priorities 2006-2007

• Designated Chairman G. Suarez, UNAM
• Designated Secretary T. vanEck, ORFEUS
• Definition agenda 2007-2011
• Reform WG-I and WG-II, improve availability of
  information,
• Improve access to real-time data, complete
  geographical coverage
• GEO
• Initiate discussion on the representation of the
  seismological community

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A FDSN mandate for more structural support ?

• Data mining for structure
• Receiver functions, Phase velocity maps
• Establish reference models and standards
• Synthetics and simulations
• Global coordination of temporary deployments
• Global role in capacity building
• Data mining for hazard
• Structure, empirical Green functions, attenuation
  laws
• Rapid source parameters, early warning
• Structured access to HPC
• Code benchmarking
• Open source and community support

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Capacity building

• A comprehensive strategy of capacity building
  must tackle all aspects and all users, from the
  more basic to the more advanced
• Progress in global seismology will stall unless a
  more comprehensive approach to data access is
  pursued, including local capacity building
• IRIS and EARTHSCOPE data and facilities should
  exploit their potential for advancement in SHA
• IRIS has a global mandate for seismology
  representation
• The long-term strategy of IRIS should consider a
  wider mandate for structural support to seismology

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Managed Products

• Earthquake Catalogs
• Hypocenters
• Magnitudes
• Moment tensors
• Waveform Products
• FARM/SPYDER
• Record Sections
• Maps
• Station Lists
• Response curves

• Tomography
• Velocity models
• Visualizations
• SeismoArchives
• Scanned images of historic recordings