Numerical Simulation of Dust Distribution Over the Complex Terrain Region of Georgia

Aleksandre A. Surmava, Leila V. Gverdtsiteli, Natia G. Gigauri, Liana N. Intskirveli

Abstract


Kinetics of dust propagation in Kakheti region is numerically studied. It is determined that in 100 m layer of atmosphere the process of turbulent diffusion take precedence in the process of dust propagation. From 100 m to 1 km the processes of diffusive and advective transfers are identical, while above 1 km the preference is given to advective transfer. Maximum values of dust concentration are obtained in 100 m surface air layer. Spatial dust distribution region increases and concentration decreases along with height increase. Urban influence zone is determined.


Keywords


Atmospheric air pollution, urban dust propagation, numerical simulation

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