摘要
利用卫星遥感数据解译地表特性需要应用辐射传输模型与反演。文中简要提到几种方法，包括蒙特卡洛光线追踪，一维物理模型，以及能够描述自然表面的整体各向异性特征的参数化公式。回顾了每种方法中所作的假设，并强调指出了处理在植被冠层这样的非均匀介质中的辐射传输问题的内在困难。在新一代改进型地球观测探测器时代的到来之际，指出进行深入研究的迫切性。
The interpretation of satellite remote sensing data in terms of land surface properties requires the use of radiation transfer models and inversion procedures. Various approaches are briefly mentioned, including Monte Carlo ray tracing, physicallybased 1D models, and parametric formulations capable of representing the general anisotropic behavior of natural surfaces. Some of the assumptions made in each approach, as well as their implications are reviewed, and the intrinsic difficulty of dealing with radiation transfer in a medium as inhomogeneous as a plant canopy is underscored. The need to pursue further research to take full advantage of the upcoming generation of advanced Earth Observation sensors is stressed.
出处
《遥感学报》
EI
CSCD
1997年第S1期79-84,共6页
NATIONAL REMOTE SENSING BULLETIN
关键词
反演
辐射传输
二向性反射
Inversion, Radiation transfer, Bidirectional reflectance
