| Approximations of the Scattering Phase Functions of Particles |
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| 作者姓名： | 赵剑琦 石广玉 车慧正 程光光 |
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| 作者单位： | [1]State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 [2]Key Laboratory for Atmospheric Chemistry of CMA,Chinese Academy of Meteorological Sciences, Beijing 100081 |
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| 基金项目： | 国家自然科学基金，the Climate Change Special Fund，the China Meteorological Administration |
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| 摘 要： | Based on anomalous diffraction theory and the modified Rayleigh-Debye approximation, a physically realistic model in bridging form is described to approximate the scattering phase function of particles. When compared with the exact method, the bridging technique reported here provides a reasonable approximation to the Mie results over a broader range of angles and size parameters, and it demonstrates the advantage of being computationally economic. In addition, the new phase function model can be essentially extended to other shapes and conveniently used in more complicated scattering and emission problems related to the solutions of the radiative transfer equations.
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| 关 键 词： | 散射 衍射 微粒物 剪刀撑 大气 |
| 收稿时间： | 2005-07-14 |
| 修稿时间： | 2006-05-15 |
Approximations of the scattering phase functions of particles |
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| Jian-Qi Zhao,Guangyu Shi,Huizheng Che,Guangguang Cheng.Approximations of the Scattering Phase Functions of Particles[J].Advances in Atmospheric Sciences,2006,23(5):802-808. |
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| Authors: | Jian-Qi Zhao Guangyu Shi Huizheng Che Guangguang Cheng |
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| Institution: | State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, Key Laboratory for Atmospheric Chemistry of CMA, Chinese Academy of Meteorol,State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,Key Laboratory for Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081,State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 |
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| Abstract: | Based on anomalous diffraction theory and the modified Rayleigh-Debye approximation, a physically realistic model in bridging form is described to approximate the scattering phase function of particles.When compared with the exact method, the bridging technique reported here provides a reasonable approximation to the Mie results over a broader range of angles and size parameters, and it demonstrates the advantage of being computationally economic. In addition, the new phase function model can be essentially extended to other shapes and conveniently used in more complicated scattering and emission problems related to the solutions of the radiative transfer equations. |
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| Keywords: | small light scattering particles phase function bridging technique |
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