Globina L. Energy dissipation and vertical exchange due to collapse of the inertia-gravity internal waves

Thesis is devoted to specification of dependence of turbulent energy dissipation rate and the vertical turbulent diffusion coefficient from the local buoyancy frequency using a one-dimensional climatic spectrum of inertia-gravity internal waves for the main pycnocline of the ocean: from the maximum buoyancy frequency to the deep-ocean floor. A theoretical model is built, in which for the first time proposed and physically substantiated was the main pycnocline of the ocean division into two layers: the "upper stratified layer" and "lower stratified layer". The dependences of turbulent energy dissipation rate and the vertical turbulent diffusion coefficient from the buoyancy frequency according to the in-situ measurements for different regions of the ocean and inland seas were shown. Comparison of simulation results and experimental dependences of e(N) and K(N) generally showed good agreement for the two considered stratified layers. The analysis of the relevant dependencies of the vertical turbulent diffusion from the depth is made. In particular, the model established the presence of the maximum of the vertical turbulent diffusion depth on the border between the two selected layers. This feature is confirmed by the corresponding distributions K(z), developed according to the in-situ measurements for different regions of the oceans.