Active rapid geoacoustic characterization using a seismic survey source

A survey of received acoustic energy levels from a seismic profiler were performed in Long Beach Harbor, CA, for compliance with the Marine Mammal Protection Act (MMPA). In addition to direct acoustic measurements, a rapid geoacoustic inversion algorithm was applied to the data to estimate the sedim...

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Bibliographic Details
Published in:IEEE journal of oceanic engineering 2004-01, Vol.29 (1), p.100-109
Main Authors: Heaney, K.D., Sternlicht, D.D., Teranishi, A.M., Castile, B., Hamilton, M.
Format: Article
Language:English
Subjects:
Acoustic measurement
Acoustic measurements
Acoustic propagation
Acoustic pulses
Acoustic surveying
Acoustic testing
Algorithms
Beaches
Cetacea
Geoacoustic inversion
Harbors
Inversions
Mammalia
Marine
Pressure measurement
Protection
Pulse measurements
Sediments
Seismic engineering
Seismic measurements
Seismic phenomena
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Description
Summary:A survey of received acoustic energy levels from a seismic profiler were performed in Long Beach Harbor, CA, for compliance with the Marine Mammal Protection Act (MMPA). In addition to direct acoustic measurements, a rapid geoacoustic inversion algorithm was applied to the data to estimate the sediment properties acoustically. This inversion algorithm has matching criteria based on time spread, range-frequency interference patterns, and the range dependence of transmission loss. Self-consistency was checked by comparing acoustic measurements with predictions based on the inversion. With an estimated geoacoustic profile, predictions of received levels as a function of position in the range-dependent environment of Long Beach Harbor were then performed.
ISSN:0364-9059
1558-1691
DOI:10.1109/JOE.2003.823287