Numerical Modeling of the Anthropogenic Dust Transfer by Means of Quasistatic and Non-Quasistatic Models

Abstract

Kinematics of the anthropogenic dust propagation emitted into the atmosphere by big cities and separate sources using numerical integration of the system of three-dimensional non-linear quasistatic and non-static equations of atmosphere hydrothermodinamics and equation of dust transfer-diffusion in the atmosphere are studied. It is obtained through modeling that kinematics of a dust propagation obtained by quazistatic and non-static equations have both common and different features. In case of beta- mesoscale diffusion, which is described by means of quazistatic equations, advective diffusion plays the key role in the dust transfer process of. In case of gamma- mesoscale diffusion, which is described by means of non-static equations, the major role in the process of dust transfer, is played by convective diffusion.