The Global Seismographic Network Surpasses Its Design Goal

Details The Global Seismographic Network Surpasses Its Design Goal The Global Seismographic Network Surpasses Its Design Goal

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004eostr..85..225b&link_type=abstract

EOS Transactions, AGU, Volume 85, Issue 23, p. 225-229

Physics

Geophysics

23

Seismology: General Or Miscellaneous, History Of Geophysics: Seismology, Seismology: Instruments And Techniques

Scientific paper

This year, the Global Seismographic Network (GSN) surpassed its 128-station design goal for uniform worldwide coverage of the Earth. A total of 136 GSN stations are now sited from the South Pole to Siberia, and from the Amazon basin to the sea floor of the northeast Pacific Ocean, in cooperation with over 100 host organizations and seismic networks in 59 countries worldwide (Figure 1). Established in 1986 by the Incorporated Research Institutions for Seismology (IRIS) to replace the obsolete, analog Worldwide Standardized Seismograph Network (WWSSN), the GSN continues a tradition in global seismology that dates back more than a century to the network of Milne seismographs that initially spanned the globe. The GSN is a permanent network of state-of-the-art seismological and geophysical sensors connected by available telecommunications to serve as a multi-use scientific facility and societal resource for scientific research, environmental monitoring, and education for our national and international community. All GSN data are freely and openly available via the Internet both in real-time and from archival storage at the IRIS Data Management System (www.iris.edu).

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