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Calculation of the reflection function of an optically thick scattering layer for a Henyey-Greenstein phase function

机译:计算Henyey-Greenstein相位函数的光学厚散射层的反射函数

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摘要

Simple analytical methods are proposed for calculating the reflection function of a semi-infinite and conservative scattered layer, the value of which is needed to solve many atmospheric optics problems. The methods are based on approximations of the exact values obtained with a strict numerical method. For a Henyey-Greenstein phase function, knowledge of the zeroth and sixth higher harmonics appears to be sufficient for a quite accurate approximation of the angle range, which is acceptable for solution of direct and inverse problems in atmospheric optics when a plane atmosphere is assumed. An error estimation and a comparison with the exact solution are presented.
机译:提出了一种简单的解析方法来计算半无限且保守的散射层的反射函数,该值需要解决许多大气光学问题。该方法基于使用严格数值方法获得的精确值的近似值。对于Henyey-Greenstein相位函数,零阶和六阶高次谐波的知识似乎足以对角度范围进行相当精确的近似,这对于假设平面大气的大气光学中的正反问题的求解是可以接受的。给出了误差估计以及与精确解的比较。

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