The Role of Binary and Ion Nucleation of Sulfuric Acid and Water Vapor in the Dynamics of Sulfate Aerosol Formation in the Atmosphere
| Autor: | A. E. Aloyan, V. O. Arutyunyan, A. N. Yermakov |
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| Rok vydání: | 2021 |
| Předmět: |
Fluid Flow and Transfer Processes
Atmospheric Science Materials science Analytical chemistry Nucleation Evaporation Sulfuric acid Ion Aerosol chemistry.chemical_compound chemistry Particle Sulfate aerosol Astrophysics::Earth and Planetary Astrophysics Astrophysics::Galaxy Astrophysics Physics::Atmospheric and Oceanic Physics Water vapor Water Science and Technology |
| Zdroj: | Russian Meteorology and Hydrology. 46:37-42 |
| ISSN: | 1934-8096 1068-3739 |
| Popis: | The results of one-dimensional calculations of the height profiles of nucleated sulfate aerosol particles for the northern mid-latitudes and tropics in winter are presented. Numerical calculations were performed using a three-dimensional model of the transport and transformation of multicomponent gas and aerosol substances in the atmosphere, incorporating photochemistry, nucleation involving neutral molecules and ions, as well as condensation/evaporation and coagulation. It is found that the resulting dynamics of the formation of aerosol particle nuclei is not a simple sum of ion and binary (water vapor/sulfuric acid) nucleation rates. This dynamics is determined by the ratio of critical radii of nucleated particles due to binary and ion nucleation of these substances (rcr_bin and rcr_ion) depending on temperature, relative humidity, and ionization rate. This should be taken into account in modeling the gas and aerosol composition of the atmosphere and comparing calculated and observed data. |
| Databáze: | OpenAIRE |
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