On the self-adjusted description of the atmospheric boundary layer, wind waves, and sea currents

The problems of the self-adjusted description of the atmospheric boundary layer, wind waves, and sea currents are considered. The atmospheric and sea dynamics are calculated independently with models of different complexity. The models are coupled with the model of wind waves. The model of wind waves is based on a strictly directional approximation and a special procedure for selecting the wave perturbations in the atmospheric and sea boundary layers. The model was used for the calculation of the characteristics of the fluxes that appear in the boundary conditions at the sea surface. Two new results were obtained: the theoretical estimate of the contribution of the wind waves to the flux of the turbulent kinetic energy at the sea surface and the model estimate of the effect of wind waves on the marine dynamics. The latter was obtained from a numerical experiment with the use of a three-dimensional nonhydrostatic model of the thermohaline dynamics of the sea. The numerical experiment is carried out for a rectangular domain that simulates the middle part of the Baltic Sea. The numerical calculations show a pronounced contribution of the effect of wind waves to the dynamics of the upper sea layer.