Improved data exchange infrastructure and avirtual network for Europe and the Mediterranean

Chad TrabantKNMI/ORFEUS Data Center

EC-Project MEREDIAN:

A look back in time, 16 years ago

Status BB stations 1987

Existing: solid triangles.Planned: open squares.

Source: ORFEUS Data Center, 1988

The EC project MEREDIAN

Mediterranean-European Rapid Earthquake Data Information and Archiving Network

Start date: November 1, 2000

MEREDIAN consortium: 18 members

End date: April 30, 2005

Goal: Initialize real-time waveform data exchange in Europeand make previously inaccessible data available to the research community, developing a distributed archive

WP1: Improving and securing data archivalWP2: Improving rapid cross border data exchangeWP3: Developing a distributed European seismological archive WP4: Seismological software co-ordination

Broadband seismic stations in and around Europe

Virtual European Broadband Seismograph Network

Real-time automated processing

EMSC MIXEuroMed Events

01/09 – 10/10Mag >= 4.5

VEBSN detection performance

NEIS QED Events01/09 – 16/10Mag >= 5.5

12

4

1424

45

- Data streams from 70 stations: (operational: ~60 stations, ~ 380 MB/day)

- Event processing criteria: EuroMed, lat: 20 – 80, lon: -20 – 50, mb/Ml: >= 4.5 Global, mb/Ml: >= 5.5

-Data products + “5min” product, 5 minutes before and after predicted P-wave + CURD (Collection of UnpRocessed Data) product,

5 minutes before to 30 minutes or phase at 2.4 km/second + AutoDRM access to continuous waveform buffer

Minimum 7 days, maximum 30 days + Rapid event alert

VEBSN system summary

A 5min product: 2003/2/22 20:41, France

System status online: overview

System status online: per network

ODC data pipeline

ODC data holdings

Results

- Rapid, automated data collection for the ODC

- Rapid data accessibility for end users

- Short-term (30 days) continuous data

- Potential for a significant increase waveform data collected

- VEBSN produces automatic event bulletins

- Stimulate data exchange within the EuroMed community

Other real-time data exchange efforts

- SeisComP/SeedLink system developmentGEOFON Project, GFZ, Germany

- Real-time data and network integration in the Southern Alps

OGS/Univ. of Trieste, ItalyEARS, SloveniaZAMG, Austria

- Buffer of Uniform Data (BUD)IRIS Data Management Center, U.S.A.

…

Table 1. MEREDIAN CONSORTIUM:NL Royal Netherlands Meteorological Institute (KNMI), De Bilt, The Netherlands CZ Geophysical Institute, Academy of Sciences Czech Republic, Prague, Czech RepublicES Instituto Geografico Nacional, Madrid, Spain MN MedNet, Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy HL National Observatory of Athens / Institute of Geodynamics, Athens, Greece. GE GEOFON, GeoForschungsZentrum Potsdam, Germany. GE/PL Geophysical Institute, Polish Academy of Sciences, Warschaw, Poland FR Centre National de la Recherche Scientifique, Nice, France. OE Zentralanstalt für Meteorologie und Geodynamic, Vienna, Austria. CH Eidgenössische Technische Hochschule Zürich, Switzerland. NO NORSAR, Kjeller, Norway. SL Environmental Agency of the Republic of Slovenia, Ljubljana SK Geophysical Institute, Slovak Academy of Sciences, Bratislava, Slovak Republic

Table 2. Additional participating observatories GE Geological Survey of Cyprus, Nicosia, Cyprus. GE Geological Survey of Estonia, Tallinn, Estonia. G Geoscope, Département de Sismologie, Institut de Physique du Globe, Paris, France. FR ReNaSS, Ecole et Observatoire des Science de la Terre, Strasbourg, France. GR German Regional Seismograph Network, Erlangen, Germany GE Geophysical Institute of Israel, Lod, Israel. MN Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Trieste, Italy MN Dipartimento di Scienze dellla Terra, University of Trieste, Italy. GE Universidad Complutense, Madrid, Spain GE Real Observatorio de la Armada, San Fernando, Spain SS Observatori de l'Ebre, Roquettes, Spain GE Bogazici University, Kandilli Observatory and ERI, Istanbul, Turkey. II IRIS/IDA network, University of California, Scripps Institute of Oceanography, USA. IU IRIS/USGS network, USGS Albuquerque Seismological Laboratory, USA.

VEBSN