The Monte Carlo atmospheric radiative transfer model McArtim: Introduction and validation of Jacobians and 3D features
The Monte Carlo atmospheric radiative transfer model McArtim: Introduction and validation of Jacobians and 3D features
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DOI：
10.1016/j.jqsrt.2010.12.009
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发表时间：
2011-04-01
影响因子：
2.3
通讯作者：
Pfeilsticker, Klaus
中科院分区：
文献类型：
--
作者：
Deutschmann, Tim;Beirle, Steffen;Pfeilsticker, Klaus
提出了一种新的蒙特卡罗大气辐射传输模型，该模型旨在支持大气中散射太阳光的紫外/可见/近红外光谱测量的解释。讨论了描述底层输运过程的积分微分方程及其形式解。推导了一种求解微分方程的随机方法——蒙特卡罗方法，并说明了它在形式解中的应用。它显示了如何模型光子轨迹的所得光线追踪算法被用来估计辐射场的函数，如辐射，光化通量和光路积分。此外，还分析了前两种量与大气光学参数的雅可比矩阵关系。通过自一致性测试和与其他辐射传输模型的相互比较，根据测量结果验证模型输出量。(C) 2011 Elsevier Ltd.版权所有。
A new Monte Carlo atmospheric radiative transfer model is presented which is designed to support the interpretation of UV/vis/near-IR spectroscopic measurements of scattered Sun light in the atmosphere. The integro differential equation describing the underlying transport process and its formal solution are discussed. A stochastic approach to solve the differential equation, the Monte Carlo method, is deduced and its application to the formal solution is demonstrated. It is shown how model photon trajectories of the resulting ray tracing algorithm are used to estimate functionals of the radiation field such as radiances, actinic fluxes and light path integrals. In addition, Jacobians of the former quantities with respect to optical parameters of the atmosphere are analyzed. Model output quantities are validated against measurements, by self-consistency tests and through inter comparisons with other radiative transfer models. (C) 2011 Elsevier Ltd. All rights reserved.