Internal solitons in the ocean
Apel, J. R.
Ostrovsky, L. A.
Stepanyants, Y. A.
Lynch, James F.
MetadataShow full item record
KeywordTheoretical models and experimental observations of oceanic nonlinear internal waves; Internal wave effects on acoustic propagation; Internal solitary waves (solitons) in the ocean
Nonlinear internal waves in the ocean are discussed (a) from the standpoint of soliton theory and (b) from the viewpoint of experimental measurements. First, theoretical models for internal solitary waves in the ocean are briefly described.Various nonlinear analytical solutions are treated, commencing with the well-known Boussinesq and Korteweg-deVries equations. Then certain generalizations are considered, including effects of cubic nonlinearity, Earth's rotation, cylindrical divergence, dissipation, shear flows, and others. Recent theoretical models for strongly nonlinear internal waves are outlined. Second, examples of experimental evidence for the existence of solitons in the upper ocean are presented; the data include radar and optical images and in situ measurements of waveforms, propagation speeds, and dispersion characteristics. Third, and finally, action of internal solitons on sound wave propagation is discussed. This review paper is intended for researchers from diverse backgrounds, including acousticians, who may not be familiar in detail with soliton theory. Thus, it includes an outline of the basics of soliton theory. At the same time, recent theoretical and observational results are described which can also make this review useful for mainstream oceanographers and theoreticians.
Showing items related by title, author, creator and subject.
Farrar, J. Thomas; Zappa, Christopher J.; Weller, Robert A.; Jessup, Andrew T. (American Geophysical Union, 2007-06-20)In aerial surveys conducted during the Tropical Ocean–Global Atmosphere Coupled Ocean-Atmosphere Response Experiment and the low-wind component of the Coupled Boundary Layer Air-Sea Transfer (CBLAST-Low) oceanographic field ...
Morozov, Andrey K.; Colosi, John A. (Acoustical Society of America, 2005-03)Parabolic equation numerical simulations of waveguide acoustical beam propagation in an ocean of Garrett–Munk internal waves are used to examine the range evolution of beam properties such as beamwidth (both spectral and ...
The impact of finite-amplitude bottom topography on internal wave generation in the Southern Ocean Nikurashin, Maxim; Ferrari, Raffaele; Grisouard, Nicolas; Polzin, Kurt L. (American Meteorological Society, 2014-11)Direct observations in the Southern Ocean report enhanced internal wave activity and turbulence in a kilometer-thick layer above rough bottom topography collocated with the deep-reaching fronts of the Antarctic Circumpolar ...