Examining the validity of approximations to fully three-dimensional shallow-water acoustic propagation through nonlinear internal gravity waves

被引:0
|
作者
Duda, Timothy F. [1 ]
机构
[1] Woods Hole Oceanog Inst, Dept Appl Ocean Phys & Engn, Woods Hole, MA 02543 USA
关键词
D O I
暂无
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The anisotropic nature of most oceanic sound speed structures, which have longer horizontal characteristic scale lengths than vertical ones, means that horizontal refraction of sound can often be neglected in computations. Cases of especially strong lateral sound-speed variation, such as in steep nonlinear internal gravity waves, where horizontal refraction effects are known to occur, can often be effectively studied by considering the behavior of adiabatically propagating vertical normal modes. However, this is not always appropriate. Here, we describe propagation of low-frequency (less than 1 kHz) sound on continental shelves in two situations where mode coupling and horizontal mode refraction occur either concurrently or in close proximity. These situations are propagation through crossing or interacting nonlinear wave packets, and propagation at low horizontal grazing angles into nonlinear internal wave packets having very short horizontal scale lengths.
引用
收藏
页码:769 / 773
页数:5
相关论文
共 50 条
  • [1] Propagation of fully nonlinear waves in deepwater, transition zone and shallow-water
    El Safty, Hoda M.
    Mansour, Alaa M.
    Abul-Azm, A. G.
    [J]. Proceedings of the 26th International Conference on Offshore Mechanics and Arctic Engineering, Vol 5, 2007, : 329 - 336
  • [2] Experimental evidence of three-dimensional acoustic propagation caused by nonlinear internal waves
    Frank, SD
    Badiey, M
    Lynch, JF
    Siegmann, WL
    [J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2005, 118 (02): : 723 - 734
  • [3] Measurement and modeling of three-dimensional sound intensity variations due to shallow-water internal waves
    Badiey, M
    Katsnelson, BG
    Lynch, JF
    Pereselkov, S
    Siegmann, WL
    [J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2005, 117 (02): : 613 - 625
  • [4] ACOUSTIC FLUCTUATIONS DUE TO SHALLOW-WATER INTERNAL WAVES
    WESTON, DE
    ANDREWS, HW
    [J]. JOURNAL OF SOUND AND VIBRATION, 1973, 31 (03) : 357 - &
  • [5] Three-dimensional instabilities of periodic gravity waves in shallow water
    Francius, Marc
    Kharif, Christian
    [J]. JOURNAL OF FLUID MECHANICS, 2006, 561 : 417 - 437
  • [6] Passive Time Reversal Acoustic Communications Through Shallow-Water Internal Waves
    Song, Aijun
    Badiey, Mohsen
    Newhall, Arthur E.
    Lynch, James F.
    DeFerrari, Harry A.
    Katsnelson, Boris G.
    [J]. IEEE JOURNAL OF OCEANIC ENGINEERING, 2010, 35 (04) : 756 - 765
  • [7] A shallow-water model that prevents nonlinear steepening of gravity waves
    Buhler, O
    [J]. JOURNAL OF THE ATMOSPHERIC SCIENCES, 1998, 55 (17) : 2884 - 2891
  • [8] ACOUSTIC REMOTE-SENSING OF INTERNAL WAVES IN SHALLOW-WATER
    ESSEN, HH
    SCHIRMER, F
    SIRKES, S
    [J]. INTERNATIONAL JOURNAL OF REMOTE SENSING, 1983, 4 (01) : 33 - 47
  • [9] Influence of internal solitary waves on sound propagation in three-dimensional shallow sea
    Zhu, Hanhao
    Xiao, Rui
    Zhu, Jun
    Xue, Yangyang
    Zhang, Shizhao
    [J]. Shengxue Xuebao/Acta Acustica, 2021, 46 (03): : 365 - 374
  • [10] Numerical researches of three-dimensional nonlinear sloshing in shallow-water rectangular tank
    Su, Yan
    Yuan, X. Y.
    Liu, Z. Y.
    [J]. APPLIED OCEAN RESEARCH, 2020, 101 (101)