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Spatial distribution of very low‐frequency wind‐generated noise in the ocean

 

作者: F. Ingenito,   W. A. Kuperman,  

 

期刊: The Journal of the Acoustical Society of America  (AIP Available online 1980)
卷期: Volume 67, issue S1  

页码: 96-96

 

ISSN:0001-4966

 

年代: 1980

 

DOI:10.1121/1.2018501

 

出版商: Acoustical Society of America

 

数据来源: AIP

 

摘要:

We have adapted our model of surface‐generated noise in a stratified lossy ocean to the case of low‐frequency wind‐generated noise produced in deep water by turbulent pressure fluctuations in the atmosphere. The model assumes a random pressure distribution at the surface and includes the effects of sound‐speed profile and bottom characteristics. Using Wilson's source levels [J. H. Wilson, J. Acoust. Soc. Am.66,1499–1507 (1979)] we have calculated the noise level as functions of frequency and depth and compared the results with measured data. We show these results along with calculations of the spatial coherence function, which differs significantly from the standard deep‐water result. Finally, we present calculations of the effective surface area, that is, the area of the surface centered above the receiver which contributes most of the noise intensity. We show that this quantity is dependent on receiver depth.

 

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