Samodurov A. Structure formation, energy dissipation and vertical exchange in stratified basins

The manuscript is devoted to studying of the role of different physical processes in formation of fine thermohaline stratification in natural stratified basins as well as esti-mating of their contribution to energy dissipation and vertical exchange. As the objects of investigation the kinematics effect of internal waves, various manifestations of shear instability of stratified flows, bottom friction, convection in near bottom regions due to geothermal heat flux, processes of double-diffusive convection, gravity flows, tidal upwelling were considered. The used field measurements behave to the open ocean and its off-shore regions, Black Sea and Mediterranean Sea. The mutual analysis of theo-retical models constructed by the present time for estimating of contribution of wave breaking within the internal wave field to energy dissipation and vertical exchange was performed. The scopes of applicability for different types of models are offered. The results obtained were used for investigation of cycles fora number of chemical matters in the water column of the Black Sea. In particular, rates of chemical reactions known before within two-three orders of magnitude and also specific residence time for different chemical compounds were assessed.