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Review: Monte Carlo Ray Tracing in Optical Canopy Reflectance Modelling

机译:评论:光学冠层反射建模中的蒙特卡洛光线追踪

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摘要

This paper reviews the use of Monte Carlo (MC) methods in optical canopy reflectance model- ling. Their utility, and, more specifically, MC ray tracing for the numerical simulation of the radiation field within a vegetation canopy, are outlined. General issues pertinent to implementa- tion and exploitation of such methods are discussed, such as the descriptions of canopy struc- ture and radiometric properties required for their use. Strategies for the reduction of variance, which form the core of the application of MC methods to canopy reflectance modelling are presented, and examples given of the type of information which may be obtained from canopy reflectance modelling using MC ray tracing. The use of MC methods in the development of models of canopy development, driven by fundamental properties such as radiation interception are discussed.
机译:本文回顾了蒙特卡洛(MC)方法在树冠反射率建模中的使用。概述了它们的用途,更具体地说,是MC射线跟踪,用于对植被冠层内辐射场进行数值模拟。讨论了与此类方法的实现和开发有关的一般性问题,例如对树冠结构的描述和使用它们所需的辐射特性。提出了减少方差的策略,这些策略构成了将MC方法应用于冠层反射率建模的核心,并给出了可以使用MC射线追踪从冠层反射率建模中获得的信息类型的示例。讨论了MC方法在冠层发育模型的开发中的使用,该模型受辐射拦截等基本属性的驱动。

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