Scattering near specular direction for horizontally oriented ice discs

Zhile Wang; Yin Zhang; Yiming Cao; Mingyu Cong; Wenzhuo Bao; Qingyu Hou

doi:10.1117/12.2014419

31 January 2013 Scattering near specular direction for horizontally oriented ice discs

Zhile Wang, Yin Zhang, Yiming Cao, Mingyu Cong, Wenzhuo Bao, Qingyu Hou

Proceedings Volume 8759, Eighth International Symposium on Precision Engineering Measurement and Instrumentation; 875921 (2013) https://doi.org/10.1117/12.2014419
Event: International Symposium on Precision Engineering Measurement and Instrumentation 2012, 2012, Chengdu, China

Abstract

Scattering phase function on horizontally oriented ice particles near the specular reflective direction is analytically modeled using a mixed method combining direct reflection and Fraunhofer diffraction components, where particles are simply treated as circular facets and the effect of fluttering is introduced under the assumption of Gauss distribution. The obtained model expression reveals that the essence of far-field scattering around specular direction is the diffraction pattern modulated by fluttered geometric reflection. Four groups of experiments are designed to validate this model at different wavelengths and incidence angles, and the calculated phase functions present good agreement both in distributions and peak values with that of T-matrix method in conjunction with a Monte Carlo stochastic process.

Citation Download Citation

Zhile Wang, Yin Zhang, Yiming Cao, Mingyu Cong, Wenzhuo Bao, and Qingyu Hou "Scattering near specular direction for horizontally oriented ice discs", Proc. SPIE 8759, Eighth International Symposium on Precision Engineering Measurement and Instrumentation, 875921 (31 January 2013); https://doi.org/10.1117/12.2014419

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