Influence of scattering properties due to complex refractive index of ice

2013 IEEE Third International Conference on Information Science and Technology (ICIST) Pub Date : 2013-03-23 DOI:10.1109/ICIST.2013.6747704

Jinhu Wang, Junxiang Ge, Ming Wei, Wenwen Yu

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引用次数: 3

Abstract

The relationship between complex refractive index and complex dielectric permittivity is discussed, studied variations in pure-ice complex dielectric permittivity with wavelength and temperature using the LH model. The influence of scattering properties of hexagonal ice crystals due to the change of the complex refractive index was studied using DDA at 94GHz. The results show that the relative error of scattering efficiency, absorption efficiency, asymmetry factor and backscattering efficiency does not exceed 0.24%, 0.24%, 0.09625 % and 0.83% respectively in the case of that the relative error of the real part of the complex refractive index does not exceed 0.22% while the imaginary part remain unchanged; the relative error of absorption efficiency and asymmetry factor do not exceed 1.46%, 0.2065 × 10-4 respectively while scattering efficiency and backscattering efficiency remain constant in the case of that the relative error of the imaginary part of the complex refractive index does not exceed 1.46% whereas the real part remains unchanged.

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冰复折射率对散射特性的影响

讨论了复折射率与复介电常数的关系，利用LH模型研究了纯冰复介电常数随波长和温度的变化。利用DDA分析了复折射率变化对六方冰晶散射特性的影响。结果表明:在复折射率实部相对误差不超过0.22%，虚部不变的情况下，散射效率、吸收效率、不对称系数和后向散射效率的相对误差分别不超过0.24%、0.24%、0.09625%和0.83%;在复折射率虚部相对误差不超过1.46%、实部相对误差不变的情况下，吸收效率和不对称系数的相对误差分别不超过1.46%、0.2065 × 10-4，散射效率和后向散射效率保持不变。

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2013 IEEE Third International Conference on Information Science and Technology (ICIST)

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