A computational study of polarimetric radar observables in hail
A computational study of polarimetric radar observables in hail
复制标题
冰雹中极化雷达观测值的计算研究
DOI：
10.1109/tgrs.1990.572906
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发表时间：
1990
影响因子：
8.2
通讯作者：
Yang Zhao
中科院分区：
文献类型：
--
作者：
K. Aydin;Yang Zhao
研究了冰雹融化和脱落对各种偏振雷达和双波长雷达观测的影响。冰芯和水层组成的扁球形冰雹采用融化模型。使用每立方米具有一个颗粒的单分散粒度分布来说明单次散射效应。还给出了指数尺寸分布，包括高斯倾斜角分布的结果。结果表明，熔化对雷达观测值有很大影响，通过组合几个观测值，估计指数尺寸分布的参数是可能的。
The effects of melting and shedding of hailstones on various polarimetric and dual-wavelength radar observabies are examined. A melting model is used for oblate spheroidal hailstones composed of an ice core and a water coating. Single scattering effects are illustrated using monodisperse size distributions having one particle per cubic meter. Resnlts for exponential size distributions, including a Gaussian canting angle distribution, are also given. It is shown that melting can significantly affect the radar observahles and that, by combining several observables, estimating the parameters of an exponential size distribution may be possible.