Effects of the shape distribution of aerosol particles on their volumetric scattering properties and the radiative transfer through the atmosphere that includes polarization

Li Li; Li Zhengqiang; Dubovik Oleg; Zheng Xu; Li Zhanhua; Ma Jinji; Wendisch Manfred

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Effects of the shape distribution of aerosol particles on their volumetric scattering properties and the radiative transfer through the atmosphere that includes polarization

机译：气溶胶颗粒形状分布对包括极化气氛的体积散射性能及辐射转移

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In this paper, we investigate the effects of shape distribution of aerosol particles on the volumetric scattering properties, as well as the radiance and polarization distributions of skylight, by numerical simulations. The results demonstrate that the shape distribution indeed exerts a significant influence on the skylight degree of linear polarization. The skylight polarization calculated assuming the microscope-measured shape distributions is distinct from that using the inversion-based shape distributions. The significant effects will influence the retrieval of the sphericity of aerosols based on the sun-sky radiometer measurements. Our results suggest that using representative shape distributions obtained by direct microscopic observations of aerosol samples captured in the natural atmosphere has a high potential to improve the retrieval of the aerosol shape parameter. (C) 2019 Optical Society of America

机译：在本文中，通过数值模拟研究了气溶胶颗粒形状分布的影响气溶胶颗粒对体积散射性能的辐射和偏振分布。结果表明，形状分布确实对线性极化的天窗施加了显着影响。假设显微镜测量的形状分布计算的天窗偏振不同于使用基于反转的形状分布不同。基于阳光天空辐射计测量，显着影响将影响气溶胶球的球形性。我们的研究结果表明，使用在自然大气中捕获的气溶胶样品的直接显微镜观察获得的代表性形状分布具有高潜力来改善气溶胶形状参数的检索。（c）2019年光学学会

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来源
《Applied optics》 |2019年第6期|共10页
作者
Li Li; Li Zhengqiang; Dubovik Oleg; Zheng Xu; Li Zhanhua; Ma Jinji; Wendisch Manfred;
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Chinese Acad Sci Inst Remote Sensing &

Digital Earth State Environm Protect Key Lab Satellite Remote S Beijing 100101 Peoples R China;

Chinese Acad Sci Inst Remote Sensing &

Digital Earth State Environm Protect Key Lab Satellite Remote S Beijing 100101 Peoples R China;

Univ Lille 1 CNRS Lab Opt Atmospher F-59655 Lille France;

Chinese Acad Sci Inst Mech State Key Lab Nonlinear Mech Beijing 100190 Peoples R China;

Chinese Acad Sci Inst Mech State Key Lab Nonlinear Mech Beijing 100190 Peoples R China;

Anhui Normal Univ Coll Terr Resources &

Tourism Wuhu 241003 Peoples R China;

Univ Leipzig Leipzig Inst Meteorol D-04103 Leipzig Germany;

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正文语种 eng
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Effects of the shape distribution of aerosol particles on their volumetric scattering properties and the radiative transfer through the atmosphere that includes polarization

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