Zhang T, Gordon H R
Appl Opt. 1997 Apr 20;36(12):2650-62. doi: 10.1364/ao.36.002650.
We report a sensitivity analysis for the algorithm presented by Gordon and Zhang [Appl. Opt. 34, 5552 (1995)] for inverting the radiance exiting the top and bottom of the atmosphere to yield the aerosol-scattering phase function [P(?)] and single-scattering albedo (omega(0)). The study of the algorithm's sensitivity to radiometric calibration errors, mean-zero instrument noise, sea-surface roughness, the curvature of the Earth's atmosphere, the polarization of the light field, and incorrect assumptions regarding the vertical structure of the atmosphere, indicates that the retrieved omega(0) has excellent stability even for very large values (~2) of the aerosol optical thickness; however, the error in the retrieved P(?) strongly depends on the measurement error and on the assumptions made in the retrieval algorithm. The retrieved phase functions in the blue are usually poor compared with those in the near infrared.
我们报告了一项针对戈登和张[《应用光学》34, 5552 (1995)]提出的算法的灵敏度分析，该算法用于反演从大气顶部和底部射出的辐射亮度，以得到气溶胶散射相函数[P(θ)]和单次散射反照率(ω₀)。对该算法在辐射定标误差、零均值仪器噪声、海面粗糙度、地球大气曲率、光场偏振以及关于大气垂直结构的错误假设等方面的灵敏度研究表明，即使对于非常大的气溶胶光学厚度值（约为2），反演得到的ω₀仍具有出色的稳定性；然而，反演得到的P(θ)中的误差在很大程度上取决于测量误差以及反演算法中所做的假设。与近红外波段相比，蓝光波段反演得到的相函数通常较差。
