منابع مشابه
Microseisms and hum from ocean surface gravity waves
[1] Ocean waves incident on coasts generate seismic surface waves in three frequency bands via three pathways: direct pressure on the seafloor (primary microseisms, PM), standing waves from interaction of incident and reflected waves (double-frequency microseisms, DF), and swell-transformed infragravity wave interactions (the Earth’s seismic hum). Beamforming of USArray seismic data shows that ...
متن کاملAre deep-ocean-generated surface-wave microseisms observed on land?
[1] Recent studies attribute land double-frequency (DF) microseism observations to deep water generation. Here we show that near-coastal generation is generally the dominant source region. This determination is based on observations at land and ocean seismic stations, buoys, gravity-wave hindcasts, and on beamforming results from continental seismic arrays. Interactions between opposing ocean w...
متن کاملMonitoring remote ocean waves using P-wave microseisms
Oceanic microseisms are generated by the interaction of opposing ocean waves and subsequent coupling with the seabed, so microseisms should contain information on the ocean conditions that generated them. This leads to the possibility of using seismic records as a proxy for the ocean gravity wavefield. Here we investigate the P-wave component of microseisms, which has previously been linked to ...
متن کاملThe origin of deep ocean microseisms in the North Atlantic Ocean
in the North Atlantic Ocean BY SHARON KEDAR*, MICHAEL LONGUET-HIGGINS, FRANK WEBB, NICHOLAS GRAHAM, ROBERT CLAYTON AND CATHLEEN JONES Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA Institute for Nonlinear Science, University of California, San Diego, La Jolla, CA 92093-0402, USA Hydrologic Research Center, San Diego, CA 92130-2069, USA Seismological Labor...
متن کاملAre Deep - Ocean - Generated Surface - Wave Microseisms Observed on 1 Land ?
6 Recent studies attribute land double-frequency (DF) microseism observations to deep7 water generation. Here we show that near-coastal generation is generally the dominant 8 source region. This determination is based on observations at land and ocean seismic 9 stations, buoys, gravity wave hindcasts, and on beamforming results from continental 10 seismic arrays. Interactions between opposing o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geochemistry, Geophysics, Geosystems
سال: 2005
ISSN: 1525-2027
DOI: 10.1029/2004gc000768