Measurement and modeling of sound propagation over continental slope in the South China Sea

被引：6

作者：

Liu, Jin ^{[2
]}

Peng, Zhaohui ^{[1
]}

Li, Zhenglin ^{[1
]}

Luo, Wenyu ^{[2
]}

Yang, Xishan ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Acoust, State Key Lab Acoust, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2020年 / 147卷 / 03期

基金：

中国国家自然科学基金;

关键词：

3-DIMENSIONAL PROPAGATION; HORIZONTAL REFRACTION;

D O I：

10.1121/10.0000801

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Measurements along two ship tracks were obtained in an experiment to investigate the properties of acoustic propagation over the continental slope in the South China Sea. The measured data show a notable difference in transmission loss about 35dB as sound crosses different geodesic paths. Numerical simulations indicate that the range and azimuth-dependent geological properties control the level of the transmission loss and lead to this large transmission loss fluctuation. In addition, the model also suggests some small-scale features of horizontal refraction effect caused by irregular topography, but they are not observed in the measured data.

引用

页码：EL209 / EL214

页数：6

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