Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/51027
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Type: Journal article
Title: Shallow-water seismoacoustic noise generated by tropical storms Ernesto and Florence
Author: Traer, J.
Gerstoft, P.
Bromirski, P.
Hodgkiss, W.
Brooks, L.
Citation: Journal of the Acoustical Society of America, 2008; 124(3):EL170-EL176
Publisher: Acoustical Soc Amer Amer Inst Physics
Issue Date: 2008
ISSN: 0001-4966
1520-8524
Statement of
Responsibility: 
James Traer, Peter Gerstoft, Peter D. Bromirski, William S. Hodgkiss, and Laura A. Brooks
Abstract: Land-based seismic observations of double frequency (DF) microseisms generated during tropical storms Ernesto and Florence are dominated by signals in the 0.15-0.5 Hz band. In contrast, data from sea floor hydrophones in shallow water (70 m depth, 130 km off the New Jersey coast) show dominant signals in the ocean gravity-wave frequency band, 0.02-0.18 Hz, and low amplitudes from 0.18 to 0.3 Hz, suggesting significant opposing wave components necessary for DF microseism generation were negligible at the site. Florence produced large waves over deep water while Ernesto only generated waves in coastal regions, yet both storms produced similar spectra. This suggests near-coastal shallow water as the dominant region for observed microseism generation.
Keywords: Sound Spectrography
Wind
Noise
Geologic Sediments
Acoustics
Pressure
Models, Theoretical
New Jersey
Atlantic Ocean
Cyclonic Storms
DOI: 10.1121/1.2968296
Appears in Collections:Aurora harvest 5
Mechanical Engineering publications

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