Study of the role of particles of different size in the aerosol condensation activity by the method of diffusion selection

Svetlana A. Terpugova; Polina N. Zenkova; Alexander V. Antonov; Mikhail V. Panchenko

doi:10.1117/12.2603449

15 December 2021 Study of the role of particles of different size in the aerosol condensation activity by the method of diffusion selection

Svetlana A. Terpugova, Polina N. Zenkova, Alexander V. Antonov, Mikhail V. Panchenko

Author Affiliations +

Proceedings Volume 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 1191640 (2021) https://doi.org/10.1117/12.2603449
Event: 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021, Moscow, Russian Federation

Abstract

When studying the condensation growth of atmospheric aerosol, many researchers note the dependence of the hygroscopic properties on the particle size. To change the aerosol size spectrum, we use diffusion selection, i.e. sequential removal of the finest fraction from the air flow. This makes it possible, on the one hand, to more accurately describe the distribution function in the size range r <0.2 μm, and, on the other hand, to increase the contribution of the intermediately dispersed fraction (r = 0.5 - 1 μm) to the formation of the optical signal. This work is devoted to the study of the sensitivity of the parameter of condensation activity of particles to changes in their size spectrum.

Citation Download Citation

Svetlana A. Terpugova, Polina N. Zenkova, Alexander V. Antonov, and Mikhail V. Panchenko "Study of the role of particles of different size in the aerosol condensation activity by the method of diffusion selection", Proc. SPIE 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 1191640 (15 December 2021); https://doi.org/10.1117/12.2603449

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