Tropospheric sulfate aerosol impact on cloudiness formation over the sea
UDC
551.510.41, 551.511.3Abstract
We have developed a combined model of moist convection, cloud formation, and sulfate aerosol dynamics in the troposphere and lower stratosphere over the sea with natural emissions of sulfur-containing compounds. The main sources of condensation nuclei in the troposphere include not only NaCl but also biogenic dimethylsulfide, the photochemical transformations of which lead to the formation of sulfate aerosols. Analysis of the results of numerical experiments indicates that sulfate aerosols have a considerable impact on cloud formation in the middle troposphere. In the scenario with no biogenic sulfate aerosol particles, the formation of clouds in the middle and upper troposphere over the sea becomes hindered.
Keywords:
mathematical modeling, atmospheric aerosol, sulfate particles, cloud drops, microphysics, condensation nuclei, turbulence, convection, coagulation, condensationAcknowledgement
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Copyright (c) 2013 Aloyan A.E., Ermakov A.N., Arutunyan V.O.
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