Study on the scattering characteristics of ice crystal particles containing nuclei

Qiang Xu; Bojian Wei; Zhensen Wu; Shuai Liu

doi:10.1117/12.2587695

2 December 2020 Study on the scattering characteristics of ice crystal particles containing nuclei

Qiang Xu, Bojian Wei, Zhensen Wu, Shuai Liu

Proceedings Volume 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics; 117173O (2020) https://doi.org/10.1117/12.2587695
Event: 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 2020, Shanghai, China

Abstract

Cirrus clouds play an important role in atmospheric radiation. Cirrus clouds are mainly composed of tiny ice crystals. Due to the development of industrialization, the ice crystal particles in cirrus may contain some pollutants. Therefore, it is of great significance to study the scattering properties of nucleated ice crystal particles. The research method of this paper is to use Python to write a model file of nucleated long hexagonal prism and flat regular hexagonal ice crystal particles. DDSCAT, an open source software package developed based on DDA, was used to read the model file and calculate the variation of extinction, scattering and absorption efficiency factors with wavelength and effective radius of the two models illuminated by a plane wave. The results show that Q_ext, Q_abs and Q_sca are sensitive to the number of ammonium sulfate nuclei and the shape of ice crystals. The results of this paper are expected to provide theoretical support for the study of cirrus scattering characteristics.

Citation Download Citation

Qiang Xu, Bojian Wei, Zhensen Wu, and Shuai Liu "Study on the scattering characteristics of ice crystal particles containing nuclei", Proc. SPIE 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 117173O (2 December 2020); https://doi.org/10.1117/12.2587695

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