Errors in radiance calculations induced by using scalar rather than Stokes vector theory in a realistic atmosphere-ocean system
Errors in radiance calculations induced by using scalar rather than Stokes vector theory in a realistic atmosphere-ocean system
复制标题
在现实的大气-海洋系统中使用标量理论而不是斯托克斯矢量理论引起的辐射计算误差
DOI：
10.1117/12.21431
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
C. N. Adams
中科院分区：
文献类型：
--
作者：
G. Kattawar;C. N. Adams
迄今为止，几乎所有处理大气-海洋系统辐射计算的计算都是使用标量理论方法进行的，其中忽略了极化效应。这种方法总是错误的；然而，既没有研究误差的性质，也没有研究误差的大小。我们编写了一个大型蒙特卡罗程序来计算包含随机界面的完全非均匀大气海洋系统中任意区域的完整四分量Stokes矢量。该程序使用米勒矩阵作为输入，用于大气中的气溶胶和海洋中的水溶胶。随机界面的穆勒矩阵也得到了准确的解释。相关采样技术用于在单台计算机运行中计算标量和Stokes矢量公式的辐射分布，从而允许对引起的误差进行直接比较。本文将给出一个真实的大气-海洋系统的结果，其中假定大气和海洋都存在瑞利散射
Virtually all calculations to date dealing with radiance calculations in an atmosphere-ocean system have been performed using a scalar theory approach where polarization effects have been neglected. This approach is always in error; however, neither the nature nor the magnitude of the errors induced has been studied. We have written a large scale Monte Carlo program to calculate the complete four component Stokes vector at any region in a fully inhomogenous atmosphere ocean system with inclusion of a stochastic interface. The program uses as input the Mueller matrices for both the aerosols in the atmosphere as well as the hydrosols in the ocean. The Mueller matrix for the stochastic interface is also accurately accounted for. The correlated sampling technique is used to compute radiance distributions for both the scalar and the Stokes vector formulations in a single computer run, thus allowing a direct comparison of the errors induced. Results will be presented for a realistic atmosphere-ocean system where Rayleigh scattering is assumed for both the atmosphere and ocean