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Model/data comparison of typhoon-generated noise |
Jing-Yan Wang(王璟琰), Feng-Hua Li(李风华) |
State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China |
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Abstract Ocean noise recorded during a typhoon can be used to monitor the typhoon and investigate the mechanism of the wind-generated noise. An analytical expression for the typhoon-generated noise intensity is derived as a function of wind speed. A“bi-peak”structure was observed in an experiment during which typhoon-generated noise was recorded. Wind speed dependence and frequency dependence were also observed in the frequency range of 100 Hz-1000 Hz. The model/data comparison shows that results of the present model of 500 Hz and 1000 Hz are in reasonable agreement with the experimental data, and the typhoon-generated noise intensity has a dependence on frequency and a power-law dependence on wind speed.
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Received: 13 September 2016
Revised: 15 October 2016
Accepted manuscript online:
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PACS:
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43.30.Nb
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(Noise in water; generation mechanisms and characteristics of the field)
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43.30.Pc
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(Ocean parameter estimation by acoustical methods; remote sensing; imaging, inversion, acoustic tomography)
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43.50.Rq
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(Environmental noise, measurement, analysis, statistical characteristics)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11434012, 41561144006, and 11125420). |
Corresponding Authors:
Feng-Hua Li
E-mail: lfh@mail.ioa.ac.cn
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Cite this article:
Jing-Yan Wang(王璟琰), Feng-Hua Li(李风华) Model/data comparison of typhoon-generated noise 2016 Chin. Phys. B 25 124317
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