MODEL OF SPATIAL DISTRIBUTION OF DUST AND SAND EMISSION

The environmental problem of the Aral Sea has had a significant impact on Central Asia in the last fifty years, as a result, the most important factor of the emergence, spread of dust and sand storms and the spread of polluting particles in the regions leads to negative changes in climate indicators. The formation of dust and sand storms is directly related to various climatic elements such as heat, rain, wind formation conditions, pressure, air humidity and solar radiation. As a result of the occurrence of the above conditions, the level of drought in the regions will increase, causing a change in temperature, a change in wind speed, and an increase in the direction of the wind, which will lead to an increase in dust and sand storms. It is observed that the formation of dust and sand storms in the conditions of climate change on the earth, changes in the distribution conditions increase the range of negative effects and lead to other unexpected consequences. The construction of mathematical models of the processes of formation and diffusion of pollutants into the atmosphere is carried out under certain conditions, restrictions and assumptions that do not contradict the physical nature of these processes and the basic laws of conservation of energy, momentum and mass. it also meets the required accuracy of solving specific theoretical or practical problems. Therefore, as in many other areas, the optimal way to solve this problem is to use mathematical modeling methods.

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