Observation of sound focusing and defocusing due to propagating nonlinear internal waves

被引：12

作者：

Luo, J. ^{[1
]}

Badiey, M. ^{[1
]}

Karjadi, E. A. ^{[1
]}

Katsnelson, B. ^{[2
]}

Tskhoidze, A. ^{[2
]}

Lynch, J. F. ^{[3
]}

Moum, J. N. ^{[4
]}

机构：

[1] Univ Delaware, Coll Marine & Earth Studies, Newark, DE 19716 USA

[2] Voronezh State Univ, Voronezh 394006, Russia

[3] Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA

[4] Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2008年 / 124卷 / 03期

关键词：

D O I：

10.1121/1.2963087

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Fluctuations of the low frequency sound field in the presence of an internal solitary wave packet during the Shallow Water '06 experiment are analyzed. Acoustic, environmental, and on-board ship radar image data were collected simultaneously before, during, and after a strong internal solitary wave packet passed through the acoustic track. Preliminary analysis of the acoustic wave temporal intensity fluctuations agrees with previously observed phenomena and the existing theory of the horizontal refraction mechanism, which causes focusing and defocusing when the acoustic track is nearly parallel to the front of the internal waves [J. Acoust. Soc. Am., 122(2), pp. 747-760 (2007)]. (C) 2008 Acoustical Society of America.

引用

页码：EL66 / EL72

页数：7

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