Acoustic Warfare: Bubble Clouds

摘要: Abstract : In this report, we survey the basic ingredients that go into bubble cloud hypothesis for enhanced acoustic backscatter seen at high enough frequency and wind speed. The picture has been proposed is spilling waves generate foamy water which then subducted downward, modifying local sound velocity. One mechanism downwelling current necessary to accomplish required subduction Langmuir circulation cell; will see sufficient but other mechanisms may also contribute. Our discussion naturally breaks up hydrodynamics issues related generation scattering from a given distribution of air density below surface. backscatter, clouds, Laplace Green, langmuir, circulations.