Dispersion dependences of elastic waves in an ice-covered shallow sea

被引：9
|
作者：
Presnov, D. A. [1 ]
Zhostkov, R. A. [1 ]
Gusev, V. A. [2 ]
Shurup, A. S. [1 ,2 ]
机构：
[1] Russian Acad Sci, OY Shmidt Earth Phys Inst, Moscow 123995, Russia
[2] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119991, Russia
来源：
ACOUSTICAL PHYSICS | 2014年 / 60卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
shallow sea; ice; shelf; ocean tomography; layered medium; surface waves; dispersion equation; estimation of the acoustic parameters of ice; water; and the bottom; TOMOGRAPHY MODEL; RECONSTRUCTION;
D O I：
10.1134/S1063771014040150
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The dispersion dependences of acoustic waves propagating under conditions close to an ice-covered shallow sea are investigated. A dispersion equation is derived for a layered medium consisting of an elastic layer (the ice cover), a liquid layer (the water column), and a homogeneous elastic half-space (the bottom). The possibilities of estimating certain parameters of the studied layered structure from an analysis of the dispersion curves are discussed. The results of numerical calculations are compared with the data of a full-scale experiment on detecting seismoacoustic signals in an ice-covered sea region.
引用
收藏
页码：455 / 465
页数：11
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