EXAMINATION OF THE INFLUENCE OF THE RANGE DEPENDENCE OF THE OCEAN BOTTOM ON THE ADIABATIC APPROXIMATION

被引：16

作者：

RUTHERFORD, SR

HAWKER, KE

机构：

[1] Applied Research Laboratories, The University of Texas at Austin, Austin

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 1979年 / 66卷 / 04期

关键词：

D O I：

10.1121/1.383308

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The effects of radial sediment sound speed derivative and sloping water—sediment interface on the adiabatic approximation to the set of coupled radial equations of coupled mode theory are examined. The investigation was carried out using the adiabatic criterion of Milder. This criterion requires that the coupling coefficient between adjacent modes be small compared to the mode cycle distance. It is determined that sediments having large characteristic acoustic impedances can have larger radial sediment sound speed gradients within the adiabatic approximation than can sediments with smaller characteristic impedances. It is also determined that this trend is reversed for the case of sloping water—sediment interface with sediments of small characteristic impedance being able to have more bottom slope within the adiabatic approximation than sediments of higher impedance. © 1979, American Association of Physics Teachers. All rights reserved.

引用

页码：1145 / 1151

页数：7