Model of wind-generated ambient noise in stratified shallow wate

• 作 者: 林建恒 高天赋
• 机 构: Qingdao Laboratory of Institute of Acoustics, the Chinese Academy of Sciences, Qingdao 266023, China
• 出 处: Chinese Journal of Oceanology and Limnology
• 发表日期: 2005年02期
• 关键词: ambient shallow stratified overhead distant dipole sonar faster absolute latter

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.

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. field of wind-generated noise is not sensitive to the sound speed pro-file, the sound speed profile is deemed as a constant; which makes the model rapid and accurate. The simulation results are in agreement with those of the wave model.