Zhai Peng-Wang, Kattawar George W, Yang Ping
Department of Physics, Texas A&M University, College Station, Texas 77843, USA.
Appl Opt. 2008 Mar 10;47(8):1037-47. doi: 10.1364/ao.47.001037.
We have developed a powerful 3D Monte Carlo code, as part of the Radiance in a Dynamic Ocean (RaDyO) project, which can compute the complete effective Mueller matrix at any detector position in a completely inhomogeneous turbid medium, in particular, a coupled atmosphere-ocean system. The light source can be either passive or active. If the light source is a beam of light, the effective Mueller matrix can be viewed as the complete impulse response Green matrix for the turbid medium. The impulse response Green matrix gives us an insightful way to see how each region of a turbid medium affects every other region. The present code is validated with the multicomponent approach for a plane-parallel system and the spherical harmonic discrete ordinate method for the 3D scalar radiative transfer system. Furthermore, the impulse response relation for a box-type cloud model is studied. This 3D Monte Carlo code will be used to generate impulse response Green matrices for the atmosphere and ocean, which act as inputs to a hybrid matrix operator-Monte Carlo method. The hybrid matrix operator-Monte Carlo method will be presented in part II of this paper.
作为“动态海洋中的辐射（RaDyO）”项目的一部分，我们开发了一个强大的三维蒙特卡罗代码，它可以计算完全非均匀浑浊介质（特别是大气 - 海洋耦合系统）中任意探测器位置处的完整有效穆勒矩阵。光源可以是被动的或主动的。如果光源是一束光，有效穆勒矩阵可被视为浑浊介质的完整脉冲响应格林矩阵。脉冲响应格林矩阵为我们提供了一种有洞察力的方式，来了解浑浊介质的每个区域如何影响其他区域。目前的代码通过平面平行系统的多分量方法和三维标量辐射传输系统的球谐离散坐标法进行了验证。此外，还研究了箱型云模型的脉冲响应关系。这个三维蒙特卡罗代码将用于生成大气和海洋的脉冲响应格林矩阵，作为混合矩阵算子 - 蒙特卡罗方法的输入。混合矩阵算子 - 蒙特卡罗方法将在本文的第二部分介绍。
