The uniform asymptotic forms of the internal gravity waves in horizontally inhomogeneous and non- stationary stratified ocean are obtained.
Keywords: Stratified ocean, internal gravity waves, asymptotic methods.
That is the reason why theapproximate asymptotical methods are systematically used for the investigation of the internal gravity wave fields in stratified ocean.
Wave Dynamics in HorizontallyInhomogeneous MediumsIn Figure 3 we represent vertical component of internal gravity wave field velocity w generated by a non-local source (underwater obstacle - sea platform) in arbitrary stratified ocean of non-uniform depth.
This same tendency is present, though at a much larger scale, in the interior of a stratified ocean when the depth-averaged current flows over abrupt topography.
A major remaining oceanographic puzzle concerns whether the dissipation occurs mostly in shallow seas, or weather a significant fraction involves deep-ocean generation of tidal-frequency internal waves that travel into the stratified ocean interior and cause turbulent mixing.