Investigation of condensation grows of aerosol particles

Konstantin A. Shmirko; Vladimir V. Lisitsa; Andrey N. Pavlov; Sergey Yu. Stolyarchuk

doi:10.1117/12.2575588

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12 November 2020 Investigation of condensation grows of aerosol particles

Konstantin A. Shmirko, Vladimir V. Lisitsa, Andrey N. Pavlov, Sergey Yu. Stolyarchuk

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Proceedings Volume 11560, 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 115604P (2020) https://doi.org/10.1117/12.2575588
Event: 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2020, Moscow, Russian Federation

Abstract

This document presents the results of the study of condesation grows of atmospheric aerosol. We analyze effect of aerosol effective radius changes versus relative humidity. In our experiment we suppose that aerosol has same type (refractive index) during the measurements. We consider different scatterplots R_{ef f} vs RH, β vs RH and α vs RH inside planetary boundary layer and estimate humidification factor. From the experiment we found that: 1) the radius of the particles grows with the index k = 0.484 in accordance with formula (10); 2) an increase in the backscattering coefficients at wavelengths of 355 nm and 532 nm is described by formula (11) and γ = 0.694 and γ= 0.585, respectively. Trend of particulate depolarization ratio as a function of relative humidity corresponds to Case II of Continental Clean atmospere model where water soluble particles has spherical shape.

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Konstantin A. Shmirko, Vladimir V. Lisitsa, Andrey N. Pavlov, and Sergey Yu. Stolyarchuk "Investigation of condensation grows of aerosol particles", Proc. SPIE 11560, 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 115604P (12 November 2020); https://doi.org/10.1117/12.2575588

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