| Model of wind-generated ambient noise in stratified shallow water |
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| 作者姓名： | 林建恒 高天赋 |
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| 作者单位： | [1]QingdaoLaboratoryofInstituteofAcoustics,theChineseAcademyofSciences,Qingdao266023,China [2]InstituteofAcoustics,theChineseAcademyofSciences,Beijing100080,China |
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| 基金项目： | This work was supported by Naval Weapon Department under contract No. 41303090207, and by Science and Technology Ministry under con-tract No. 2001AA631080 and No. 2003AA604010. |
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| 摘 要： | In order to build a rapid ocean ambient noise model adapted for a stratified shallow water, a hybrid model of normal mode method (for far field) and ray method (for near field) is suggested which combines the advantages of both methods. Since the near field of wind-generated noise is not sensitive to the sound speed profile, the sound speed profile is regarded as a constant; which makes the model rapid and accurate. The simulation results are in agreement with those of the wave model.
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| 关 键 词： | 正规模式 混合模型 海洋环境噪声 风形成过程 |
| 收稿时间： | 8 July 2003 |
| 修稿时间： | 28 December 2004 |
Model of wind-generated ambient noise in stratified shallow water |
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| Lin Jianheng,Gao Tianfu.Model of wind-generated ambient noise in stratified shallow water[J].Chinese Journal of Oceanology and Limnology,2005,23(2):144-151. |
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| Authors: | Lin Jianheng Gao Tianfu |
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| Institution: | (1) Qingdao Laboratory of Institute of Acoustics, the Chinese Academy of Sciences, 266023 Qingdao, China;(2) Institute of Acoustics, the Chinese Academy of Sciences, 100080 Beijing, China |
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| Abstract: | In order to build a rapid ocean ambient noise model adapted for a stratified shallow water, a hybrid model of normal mode method (for far field) and ray method (for near field) is suggested which combines the advantages of both methods. Since the near field of wind-generated noise is not sensitive to the sound speed pro- file, the sound speed profile is regarded as a constant; which makes the model rapid and accurate. The simulation results are in agreement with those of the wave model. |
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| Keywords: | wind-generated ambient noise ray normal mode hybrid model |
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