Sound scattering by spatially localized inhomogeneities in a shallow-water waveguide in the presence of internal waves

被引：2
|
作者：
Grigor'ev, VA
Katsnel'son, BG
Pereselkov, SA
Petnikov, VG
机构：
[1] Voronezh State Univ, Voronezh 394693, Russia
[2] Russian Acad Sci, Inst Gen Phys, Wave Res Ctr, Moscow 117333, Russia
来源：
ACOUSTICAL PHYSICS | 2003年 / 49卷 / 01期
关键词：
D O I：
10.1134/1.1537386
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
A method is developed for solving the problem of sound scattering by concentrated inhomogeneities in a waveguide of small depth in the presence of internal waves (IW) typical of an oceanic shelf. The sound field fluctuations related to the motion of a model scatterer (a soft spheroid) and to the propagation of the IW are calculated and analyzed. It is shown that the field of internal waves considerably affects the scattered sound field even when the source-receiver and source-scatterer distances are relatively small (about several kilometers). This effect depends not only on the amplitude of the IW, but on their propagation direction as well. (C) 2003 MAIK "Nauka/Interperiodica".
引用
收藏
页码：36 / 42
页数：7
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