Cloud droplet effective radius from spaceborne polarization measurements
Cloud droplet effective radius from spaceborne polarization measurements
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DOI：
10.1029/98gl01221
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发表时间：
1998-06-01
影响因子：
5.2
通讯作者：
Goloub, P
中科院分区：
文献类型：
--
作者：
Breon, FM;Goloub, P
星载 POLDER 仪器首次提供了地球反射偏振特性的定量测量。许多偏振光 POLDER 图像显示云场上的云弓型特征，散射角在 150 到 170 度之间。这一意想不到的观察结果归因于云滴单次散射产生的偏振辐射。它表明，在许多情况下，云滴尺寸分布非常窄。可以反转多向偏振辐射测量，以准确估计云滴半径。
The spaceborne POLDER instrument provided the first quantitative measurements of the Earth reflectance polarization characteristics. Many POLDER images of polarized light show cloudbow type features over cloud fields for scattering angles between 150 and 170 degrees. This unexpected observation is attributed to the polarized radiance generated by single scattering by cloud droplets. It shows that, in many cases, the cloud droplet size distribution is very narrow. The multidirectional polarized radiance measurements can be inverted for an accurate estimate of the cloud droplet radius.