Strong directivity of ocean-generated seismic noise
نویسندگان
چکیده
منابع مشابه
Strong directivity of ocean-generated seismic noise
[1] We measure direction and amplitude of ocean-generated continuous seismic noise in the western United States. Slowness direction of the noise is determined using array beamforming, and particle motion direction from individual three-component stations. We find two surprising results. First, the noise is highly monodirectional at all sites, regardless of coastal distance. A single narrow gene...
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[1] Earth’s background vibrations at frequencies below about 0.5 Hz have been attributed to ocean-wave energy coupling into the ground and propagating as surface waves and P-waves (compressional waves deep within the Earth). However, the origin and nature of seismic noise on land at frequencies around 1 Hz has not yet been well studied. Using array beamforming, we analyze the seismic noise fiel...
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ژورنال
عنوان ژورنال: Geochemistry, Geophysics, Geosystems
سال: 2004
ISSN: 1525-2027
DOI: 10.1029/2003gc000520