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| Titel |
Significant technical advances in broadband seismic stations in the Lesser Antilles |
| VerfasserIn |
A. Anglade, A. Lemarchand, J.-M. Saurel, V. Clouard, M.-P. Bouin, J.-B. Chabalier, S. Tait, C. Brunet, A. Nercessian, F. Beauducel, R. Robertson, L. Lynch, M. Higgins, J. Latchman |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Improving seismic networks performances: from site selection to data integration (EGU2014 SM1.2/GI3.7 session) ; Nr. 40 (2015-04-10), S.43-50 |
| Datensatznummer |
250121320
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| Publikation (Nr.) |
 copernicus.org/adgeo-40-43-2015.pdf |
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| Zusammenfassung |
| In the last few years, French West Indies observatories from the Institut de
Physique du Globe de Paris (IPGP), in collaboration with The UWI Seismic
Research Centre (SRC, University of West Indies), have modernized the Lesser
Antilles Arc seismic and deformation monitoring network. 15 new, permanent
stations have been installed that strengthen and expand its detection
capabilities. The global network of the IPGP-SRC consortium is now composed
of 20 modernized stations, all equipped with broadband seismometers, strong
motion sensors, Global Positioning System (GPS) sensors and satellite
communication for real-time data transfer. To enhance the sensitivity and
reduce ambient noise, special efforts were made to improve the design of the
seismic vault and the original Stuttgart shielding of the broadband
seismometers (240 and 120s corner period). Tests were conducted for several
months, involving different types of countermeasures, to achieve the highest
performance level of the seismometers. GPS data, realtime and validated
seismic data (only broadband) are now available from the IPGP data centre (http://centrededonnees.ipgp.fr/index.php?&lang=EN).
This upgraded network feeds the Caribbean Tsunami Warning System supported by
UNESCO and establishes a monitoring tool that produces high quality data for
studying subduction and volcanic processes in the Lesser Antilles arc. |
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