The optical properties of atmospheric ice crystals of arbitrary shape by the set of 500 particles

N. Kan; I. V. Tkachev; A. V. Konoshonkin; V. A. Shishko; D. N. Timofeev; N. V. Kustova

doi:10.1117/12.2603415

15 December 2021 The optical properties of atmospheric ice crystals of arbitrary shape by the set of 500 particles

N. Kan, I. V. Tkachev, A. V. Konoshonkin, V. A. Shishko, D. N. Timofeev, N. V. Kustova

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Proceedings Volume 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 119163S (2021) https://doi.org/10.1117/12.2603415
Event: 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021, Moscow, Russian Federation

Abstract

The optical characteristics of arbitrary shaped atmospheric ice crystals are necessary both for solving the problem of radiation transfer in the atmosphere and for interpreting lidar data. At the same time, there is an acute problem of studying the influence of the particle shape on its optical characteristics. Since the construction of a databank of the optical characteristics of cirrus clouds is a laborious task, it is necessary to reduce as much as possible the number of different particles, the superposition of which represent the values averaged over the entire ensemble of particles in the cloud. The report presents the results of calculations of the light scattering matrix for 500 different arbitrary shaped particles with 25 facets and the same particle size. The calculations were performed within the geometric optics approximation. According to the results of the analysis, several particles were selected whose optical properties are as close as possible to the optical properties of the entire ensemble.

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N. Kan, I. V. Tkachev, A. V. Konoshonkin, V. A. Shishko, D. N. Timofeev, and N. V. Kustova "The optical properties of atmospheric ice crystals of arbitrary shape by the set of 500 particles", Proc. SPIE 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 119163S (15 December 2021); https://doi.org/10.1117/12.2603415

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