Studying the development and motions of tropical cyclones with ocean-atmosphere model

The results of numerical experiments in determining the impact of the ocean-atmosphere interaction upon the intensity and motions of tropical cyclones are presented. A hybrid atmosphere-ocean model is formed by coupling on eight-level atmospheric model in σ-coordinates and a three-layer nonlinear oceanic model. Experiments were conducted using the constant and variable Coriolis parameters, and with and without the leading flow. It is shown that ocean water cooling is conditioned by a TC which notably decreases the intensity of the TC itself, brings closer the decay stage, and influences the dimensions and structure of the TC, and notably changes the TC trajectory. Experiments in studying the influence of the beta-effect on the TC trajectory with and without incorporating the oceanic model are also carried out.