| 卷云相函数的计算与分析 |
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| 引用本文： | 韦万书,张翔,易凡,杨嗣承,黄启俊.卷云相函数的计算与分析[J].武汉大学学报(理学版),2012(2):109-112. |
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| 作者姓名： | 韦万书 张翔 易凡 杨嗣承 黄启俊 |
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| 作者单位： | 武汉大学物理科学与技术学院 |
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| 基金项目： | 国家地面智能集成观测及业务软件项目(GYHY201006049)资助 |
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| 摘 要： | 使用Mie散射理论和FDTD(finite difference time domain)算法,计算了冰晶粒子及其组成的卷云在2.14μm和3.72μm的相函数,讨论了冰晶组分、分布规律、波长及平均有效尺度对其影响.计算结果表明,入射光波长和有效尺度对卷云相函数起主要影响作用,而卷云的冰晶组分和分布规律对其影响不显著.
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| 关 键 词： | 冰晶 卷云 红外 Mie理论 相函数 |
Computation and Analyze of the Phase Function of Cirrus Cloud |
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| WEI Wanshu,ZHANG Xiang,YI Fan,YANG Sicheng,HUANG Qijun.Computation and Analyze of the Phase Function of Cirrus Cloud[J].JOurnal of Wuhan University:Natural Science Edition,2012(2):109-112. |
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| Authors: | WEI Wanshu ZHANG Xiang YI Fan YANG Sicheng HUANG Qijun |
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| Institution: | (School of Physics and Technology,Wuhan University,Wuhan 430072,Hubei,China) |
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| Abstract: | Studying on High-altitude cirrus clouds become an important part of the research of remote sensing and meteorological as its effects on the transmission of infrared radiative.In this paper,the Mie scattering theory and the FDTD method are used to calculate the single-scattering phase function with ice particles and cirrus clouds in the bands of 2.14 μm and 3.72 μm.And the influence of size distributions,percentages of ice crystals,wavelengths,and the average effective radius on phase function for mid-latitude cirrus clouds are discussed.The results show that the effective radius and wavelength have an important influence on phase function of cirrus clouds,and the impact of the cirrus ice crystal composition and the size distribution is not significant. |
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| Keywords: | ice crystal cirrus infrared Mie theory phase function |
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