Investigation of the influence of cyclonic disturbances on the dynamic processes and the evolution of impurities in the Sea of Azov in the presence of stationary currents

摘要

A three-dimensional nonlinear mathematical model is used to study the dynamic processes under the action of cyclonic disturbances in the field of stationary wind in the Sea of Azov and the specific features of transformation of the impurities. The results of numerical calculations enable us to conclude that the maximum velocities of currents generated by a cyclone depend on the direction of its motion. It is shown that the cyclones moving westward generate currents with higher maximum velocities than the cyclones of other directions. It is also demonstrated that the motion of atmospheric disturbances leads to a significant enlargement of the area of propagation of pollutants as compared with the case of action solely of stationary currents. The influence of the velocities of stationary currents on the maximum current velocities caused by the passage of a cyclone is also analyzed.