期刊文献+

台风对深海海洋环境噪声的影响

Effects on deep ocean ambient noise caused by typhoon
收藏 分享 导出
摘要 中低频海洋环境噪声受海表面风速的影响显著,台风经过时,海表面风速在短时间内迅速增大,因此海洋环境噪声强度显著增加.本文通过分析两次台风经过垂直接收阵附近时接收器记录的海洋环境噪声,研究了台风条件下,环境噪声强度随风速和频率变化的关系.文中结合风成噪声源级模型和台风激发的水下噪声场模型对台风影响下的深海环境噪声场进行了理论仿真,并将仿真结果与实测噪声数据进行最小二乘曲线拟合,得到噪声源级模型中风速和频率的指数项系数的取值.结果表明:台风对高频噪声的影响更显著,200 Hz以下的噪声受风速变化的影响较小.环境噪声强度近似与风速的三次方成正比,且当风速的指数项为3时,频率的指数项取值在-0.85附近. Sea-surface wind speed has significant impacts on ocean ambient noise at medium and low frequency bands. When a typhoon comes close, sea-surface wind speed increases sharply, which results in the surge of the ambient noise level. By analyzing the sound data collected by a vertical array in deep ocean environment during two typhoon periods, both the wind speed and frequency dependencies of ambient noise are established. Noise field at receivers is calculated via numerical simulations with combination of the source intensity model of wind generated noise and the typhoon generated noise intensity model. Simulated noise intensity is fitted with the experimental data by least square method, through which the exponent of the wind speed and frequency in the source intensity model is determined. Our result indicate that the variations of wind speed caused by typhoon heavily impact on the noise at frequency band higher than 200 Hz. And specifically, the ambient noise intensity is approximately proportional to the 34 power of the wind speed, where the exponent of frequency is around -0.85.
作者 刘姗琪 李风华 LIU ShanQi,LI FengHua(1. State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China; 2 University of Chinese Academy of Sciences, Beijing 100190, China)
出处 《中国科学:物理学、力学、天文学》 CSCD 北大核心 2016年第9期28-36,共9页 SCIENTIA SINICA Physica,Mechanica & Astronomica
基金 国家自然科学基金资助项目(编号:11125420)
关键词 台风 海洋环境噪声 风速 频率 typhoon, ocean ambient noise, wind speed, frequency
作者简介 联系人,E-mail:lfh@mail.ioa.ac.cn
  • 相关文献

参考文献17

  • 1Knudsen V O, Alford R S, Emling J W. Underwater ambient noise. J Mar Res, 1948, 7:410-429. 被引量:1
  • 2Wenz G M. Acoustic ambient noise in the ocean: Spectra and sources. J Acoust Soc Am, 1962, 34:1936-1956. 被引量:1
  • 3Perrone A J. Deep ocean ambient noise spectra in the Northwest Atlantic. J Acoust Soc Am, 1969, 46:762-770. 被引量:1
  • 4Farmer D M, Lemon D D. The influence of bubbles on ambient noise in the ocean at high wind speeds. J Phys Oceanogr, 1984, 14:1762-1778. 被引量:1
  • 5Lin J H, Chang D Q, Ma L, et al. Estimation of surface wind speed by ocean ambient noise (in Chinese). Acts Acust, 2001, 26:217-221. 被引量:1
  • 6林建恒,马力,等.海洋环境噪声反演估计海面风速[J].声学学报,2001,26(3):217-221. 被引量:13
  • 7Piggott C L. Ambient sea noise at low frequencies in shallow water of the Scotian Shelf. J Acoust Soc Am, 1964, 36:2152-2163. 被引量:1
  • 8Wilson J D, Makris N C. Quantifying hurricane destructive power wind speed and air-sea material exchange with natural undersea sound. Geophys Res Lett, 2008, 35:1-5. 被引量:1
  • 9Curtis K R, Howe B M, Mercer J A. Low-frequency ambient sound in the North Pacific: Long time series observations. J Acoust Soc Am, 1999, 106:3189-3200. 被引量:1
  • 10Chapman N R, Cornish J W. Wind dependence of deep ocean ambient noise at low frequencies. J Acoust Soc Am, 1993, 93:782-789. 被引量:1

二级参考文献4

  • 1林建恒.海面风速的被动声学监测方法.国家863计划海洋领域海洋监测技术主题研究进展丛书青年基金论文集[M].北京:科学出版社,.. 被引量:1
  • 2Lin Jianheng,Proceedings of the 2nd Int Workshop on Acoustical Engineering and Technology,1999年,256页 被引量:1
  • 3洪申(译),水声工程原理,1972年 被引量:1
  • 4林建恒,国家863计划海洋领域海洋监测技术主题研究进展丛书青年基金论文集 被引量:1

共引文献12

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈