Temperature regime and air pollution analysis for winter 2020-2021 has been carried out. Average urban heat island effect in December 2020, January 2021 and February 2021 reached 1.5, 2.0. and 2.5°С. During the cold weather maximum heat island effect was equal 6.0, 7.5 and 9.5°С, respectively. It is shown than during cold weather temperature inversions in the boundary lager of the atmosphere influence markedly on the urban air pollution.
Saltating particle concentration variations in the windsand flux on the desertified area have been analyzed. Vertical profiles of the particle concentrations are constructed. Exponential approximations of the saltating particle concentration height profiles have been proposed. For the upper layer of the saltation the relation between the wind velocity and the logarithmic concentration gradient has been received and for the lower layer of the saltation the statistical characteristics of the logarithmic concentration gradient variations have been determined.
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