Abstract
One of the challenges in designing a worldwide monitoring system for verification of compliance with the Comprehensive Nuclear-Test-Ban Treaty (CTBT) is that seismic networks can provide only sparse coverage of the oceans, which encompass more than 70% of earth's surface. Fortunately, acoustic energy created by underwater explosions can be trapped in the SOFAR (SOund Fixing And Ranging) channel and propagate to great distances with little attenuation, thus, relatively few stations are required for effective monitoring. The hydroacoustic component of the International Monitoring System (IMS), currently being installed for use in verifying compliance with the CTBT, will consist of six hydrophone stations and five supplemental T-phase stations located on ocean islands. This special volume brings together a number of studies addressing technical issues in detecting underwater explosions, and discriminating them from naturally occurring events.KeywordsSeismic NetworkUnderwater ExplosionInternational Monitoring SystemSparse CoverageHydroacoustic SignalThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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