Journal article
Shallow-water seismoacoustic noise generated by tropical storms Ernesto and Florence
The Journal of the Acoustical Society of America, Vol.124(3), pp.EL170-EL176
08/28/2008
DOI: 10.1121/1.2968296
PMID: 19045561
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.
Details
- Title: Subtitle
- Shallow-water seismoacoustic noise generated by tropical storms Ernesto and Florence
- Creators
- James Traer - Scripps Institution of Oceanography, La Jolla, California 92093-0238Peter Gerstoft - Scripps Institution of Oceanography, La Jolla, California 92093-0238Peter Bromirski - Scripps Institution of Oceanography, La Jolla, California 92093-0238William Hodgkiss - Scripps Institution of Oceanography, La Jolla, California 92093-0238Laura Brooks - Scripps Institution of Oceanography, La Jolla, California 92093-0238
- Resource Type
- Journal article
- Publication Details
- The Journal of the Acoustical Society of America, Vol.124(3), pp.EL170-EL176
- DOI
- 10.1121/1.2968296
- PMID
- 19045561
- NLM abbreviation
- J Acoust Soc Am
- ISSN
- 0001-4966
- eISSN
- 1520-8524
- Publisher
- American Institute of Physics
- Date published
- 08/28/2008
- Academic Unit
- Psychological and Brain Sciences; Iowa Neuroscience Institute
- Record Identifier
- 9984065468502771
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