Modeling of the process of transfer and diffusion of elkodisperse particles in the atmosphere with the account of earth erosion

The paper considers the solution of the actual task of forecasting the ecological state of the environment, for example, in the Aral Sea region, where a large amount of salt and fine-dispersed harmful particles are emitted into the atmosphere due to soil erosion of the drained part of the Aral Sea. The mathematical model, its information support and the results of computer experiments carried out on a computer are presented. The developed model is designed for research, monitoring and forecasting of the process of distribution of pollutants in the atmosphere, and is described by a system of partial differential equations with corresponding initial and boundary conditions. The main parameters that play an important role in the process of transport and diffusion of harmful substances in the atmosphere are indicated: wind speed and its direction; terrain relief; the amount of release of salt particles into the atmosphere, which depends on the speed of wind and soil moisture, etc. Based on the analysis of the numerical experiments carried out, conclusions are formulated that serve as the basis for making management decisions on this issue.