Linearized Single-Scattering Property Database for Hexagonal Prism Ice Particles
Linearized Single-Scattering Property Database for Hexagonal Prism Ice Particles
复制标题
六棱柱冰粒线性化单散射特性数据库
DOI：
10.3390/rs14236138
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Zhao Liu
中科院分区：
文献类型：
--
作者：
Chenxu Gao;Dongbin Liang;Bingqiang Sun;Jian Liu;Zhao Liu
准确描述大气颗粒物的单次散射特性是影响大气微物理遥感的重要因素。在本文中，线性化的单散射特性的冰粒的数据库开发的可见光至红外光谱范围内的0.4-15 μm和尺寸参数从0.5到500。将线性化不变嵌入T矩阵方法和线性化物理几何光学方法相结合。一套完整的积分散射特性，包括消光效率，单次散射的散射系数，不对称因子，微分散射特性，包括六个相位矩阵元素，是在数据库中的基本散射参数。此外，这些规则的散射特性相对于折射率（真实的和虚部）和有效半径的雅可比矩阵也包括在内，并用于灵敏度确定。讨论了后向散射退偏比等具有实际应用价值的导数特性随光谱和尺寸的变化及变化率。
Accurate description of the single scattering properties of atmospheric particles can be an essential factor influencing the remote sensing of atmospheric microphysics. In this paper, a database for the linearized single scattering properties of ice particles was developed in the visible to infrared spectral region of 0.4–15 μm and for size parameters ranging from 0.5 to 500. The linearized invariant imbedding T-matrix method and linearized physical-geometric optics method were jointly applied. A full set of integral scattering properties including extinction efficiency, single scattering albedo, asymmetry factors, and differential scattering properties, including six phase matrix elements, were the basic scattering parameters in the database. Furthermore, the Jacobians of these regular scattering properties with respect to refractive index (real and imaginary parts) and effective radius were also included and used for sensitivity determinations. The spectral and size-dependent variations and changing rates of the derivative characteristics with actual application values, such as backscattering depolarization ratios, were also discussed.