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13 December 2018 Relations between the aerosol condensation activity and its microstructure in nano- and micrometer particle size range
Svetlana A. Terpugova, Victor V. Polkin, Mikhail V. Panchenko, Mikhail Yu. Arshinov, Denis K. Davydov, Artem V. Kozlov
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Proceedings Volume 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 108335Z (2018) https://doi.org/10.1117/12.2504591
Event: XXIV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2018, Tomsk, Russian Federation
Abstract
The dependence of the size and optical parameters of atmospheric aerosol particles on the relative humidity of air is usually represented by a smooth curve described by a one-parameter formula of the Kasten - Hanel type1,2. However, sometimes, more often in spring, a dramatic increase of the scattering coefficient caused by a phase transition (dissolution) of the particulate matter is observed in a narrow humidity range. In order to estimate, what atmospheric aerosol particles provide for the appearance of the phase transition at wetting, the data on the aerosol microstructure in nano- and micrometer size range were analyzed. The peculiarities of the aerosol microstructure in the cases of the phase transition and its absence are discussed in the paper.
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Svetlana A. Terpugova, Victor V. Polkin, Mikhail V. Panchenko, Mikhail Yu. Arshinov, Denis K. Davydov, and Artem V. Kozlov "Relations between the aerosol condensation activity and its microstructure in nano- and micrometer particle size range", Proc. SPIE 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 108335Z (13 December 2018); https://doi.org/10.1117/12.2504591
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KEYWORDS
Atmospheric particles
Aerosols
Humidity
Scattering
Atmospheric optics
Atmospheric sciences
Earth's atmosphere
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