INCREASE IN SURFACE AIR TEMPERATURE AS A RESULT OF CONVECTIVE AEROSOL REMOVEMENT TO DESERT TERRITORIES

Abstract

<p><strong>Abstract</strong></p><p>We modified the mathematical model of the influence of convective aerosol removal (CR) from desert surfaces on near-surface air temperature, which we previously developed for "ideal" conditions (the absence of vegetation cover and the presence of wind loads - calm weather conditions) [1, 30].</p><p>During field experiments to validate the model, a significant influence of wind and vegetation cover on the thermal effect of convective aerosol removal (CR) was revealed, causing significant discrepancies between model and experimental data. Based on the obtained empirical dependences of the thermal impact of CR F on wind speed and the general projective cover of vegetation, as well as changes in some parameters of the model of convective aerosol removal (MCR), the MCR-2 version was developed taking into account real operating conditions.</p><p>According to the results of the implementation of MCR -2 for the territory of the Southern Aral Sea region in the warm period of the year (May-October) in desert zones, an increase in temperature in the near-surface layer is noted, on average, by 3.5 ° C, as a result of convective removal of aerosol. This value is very significant, which indicates the need to take into account the convective removal of aerosol in prognostic and climate models of surface air temperature in desert areas.</p><p><strong>References:</strong></p><ol><li>Arushanov M. L., Tleumuratova B. S., Narimbetov B. ZH. 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