Monitoring the comprehensive nuclear test ban treaty: seismic event discrimination and identification

Auteurs

• William R. Walter

Paramètres

• La nature
• Nature, Animaux

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In September 1996, the United Nations General Assembly adopted the Comprehensive Nuclear-Test-Ban Treaty (CTBT), which prohibits nuclear explosions globally and mandates a verification system. This system includes 321 monitoring stations worldwide, a data communications network, an international data center, and onsite inspections to ensure compliance. A significant challenge lies in identifying small-magnitude banned nuclear tests and differentiating them from seismic events like earthquakes and mining-related activities. The 12 papers in this special volume focus on CTBT verification research, analyzing regional data from various arrays, broadband stations, and temporary deployments. The studies cover a range of events, including nuclear explosions, earthquakes, mining-related explosions, mine collapses, and chemical explosions across Europe, Asia, North Africa, and North America. While the primary focus is on short-period, body-wave discriminants and relevant source and path corrections, there is also research on long-period data from regional and teleseismic distances. These papers illustrate the expansion of event identification research supporting CTBT monitoring, encompassing diverse event types, data types, geographic regions, and statistical techniques.

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• Année de publication: 2002