HR: 09:05h
AN: U21A-05    [PDF]
TI: EC-Project MEREDIAN: Improved Data Exchange Infrastructure and a Virtual Network for Europe and the Mediterranean
AU: * Trabant, C
EM: chad.trabant@knmi.nl
AF: ORFEUS Data Center, Royal Netherlands Meteorological Institute (http://orfeus.knmi.nl), ORFEUS Data Center KNMI Seismology Division Wilhelminalaan 10, De Bilt, 3730AE Netherlands
AU: van Eck, T
EM: vaneck@knmi.nl
AF: ORFEUS Data Center, Royal Netherlands Meteorological Institute (http://orfeus.knmi.nl), ORFEUS Data Center KNMI Seismology Division Wilhelminalaan 10, De Bilt, 3730AE Netherlands
AU: Dost, B
EM: dost@knmi.nl
AF: ORFEUS Data Center, Royal Netherlands Meteorological Institute (http://orfeus.knmi.nl), ORFEUS Data Center KNMI Seismology Division Wilhelminalaan 10, De Bilt, 3730AE Netherlands
AU: The EC-Project Meredian, .
EM: vaneck@knmi.nl
AF: The EC-Project MEREDIAN (http://orfeus.knmi.nl/meredian), ORFEUS Data Center KNMI Seismology Division Wilhelminalaan 10, De Bilt, 3730AE Netherlands
AB: The Mediterranean-European Rapid Earthquake Data Information and Archiving Network (MEREDIAN) project aims to improve the existing European infrastructure for seismological data exchange while simultaneously addressing relevant scientific and technical requirements. Coordinated by the Observatories and Research Facilities for EUropean Seismology (ORFEUS) in The Netherlands, the MEREDIAN consortium is composed of 18 national institutions. With an emphasis on providing uninhibited access to real-time and archived seismic waveform data, the project is supporting the development of general purpose tools and standards for both seismic data suppliers and consumers. A major component of this project is the ongoing development of the Virtual European Broadband Seismograph Network (VEBSN). The ORFEUS Data Center (ODC) performs the network operations for the VEBSN while data streams from broad-band seismic stations are contributed by consortium members and others. The VEBSN is a fully functional automatic seismic network which locates earthquakes, calculates magnitudes and generates seismic event alerts. The primary purpose of the VEBSN is to expedite and automate data collection at the ODC. This system allows the ODC to provide event-based data sets, from a well distributed group of broad-band stations in the region, within minutes or hours of significant European-Mediterranean seismic events. Our requirements for developing the VEBSN were 1) flexible data transmission software that can interface with diverse data sources at peer institutions, 2) reliable exchange protocols, resistant to data gaps during network congestion or problems and 3) a central system to collect and process all the incoming data streams. Our solution to the first two challenges was to adopt and support the open source Seismological Communication Processor (SeisComP). This package is lightweight, flexible and implements a reliable data transmission protocol, making it an invaluable component of the VEBSN. Besides the SeedLink protocol used by SeisComP we collect data streams using two other reliable protocols, Antelope ORB and CD-1, due to their pre-existence at peer sites. In the interest of time and cost efficiency we purchased the proprietary Antelope software system to function as the central collection and processing hub. EC-Project MEREDIAN: Contract No. EVR1-CT-2000-40007
UR: http://orfeus.knmi.nl/vebsn/
DE: 7200 SEISMOLOGY
DE: 9800 GENERAL OR MISCELLANEOUS
SC: U
MN: 2003 Fall Meeting