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A shallow water experiment to determine the source spectrum level of wind‐generated noise

 

作者: W. A. Kuperman,   M. C. Ferla,  

 

期刊: The Journal of the Acoustical Society of America  (AIP Available online 1985)
卷期: Volume 77, issue 6  

页码: 2067-2073

 

ISSN:0001-4966

 

年代: 1985

 

DOI:10.1121/1.391781

 

出版商: Acoustical Society of America

 

关键词: wind;noise;mediterranean sea;depth

 

数据来源: AIP

 

摘要:

An experiment was conducted in a shallow water region of the Mediterranean Sea to study wind‐generated noise. In addition to measuring the noise field, propagation‐loss data were collected and used in a detailed modeling of the environment. The environmental information was then used as input to a noise model based on wave theory that computes the noise field in the water column for a given (unknown) source strength. By comparing model predictions with data, the influence of the environment on recorded noise levels could be removed and a measure of the noise source spectrum levels obtained as a function of wind speed. It was found that noise levels correlate better with wind speed than with wave height. In addition it was found that the nearfield contribution dominates the noise level, with the result of producing virtually constant noise intensity over depth from moderate to high wind speeds and frequencies above 200 Hz.

 

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