森林的直向多谱段反射模型

森林的直向多谱段反射模型

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Contributor(s)

Initial contribute: 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Method-focused categoriesData-perspectiveRemote sensing analysis

Model Description

Chinese {{currentDetailLanguage}} Chinese

森林的直向多谱段反射模型

   1)天空辐射:

森林对天空辐射的半球面-直向反射系数ρD简化为:

  

式中,d是方向r1θ1,ψ1)上的天空辐射;μ1=cosθ1;而D是从天空向下的漫射通量;ρ1是二向反射系数。

   2)辐射的多重散射:

在计算多重散射强度时用到了有效叶面积指数值

式中,aaj(θs)是第j类树的树冠中在太阳照射方向上的间隙概率,GIj是第j类树的数目的相对方差;kclumpj是第j类树种叶片的丛生系数;是分枝面积指数;θs是太阳顶角。

参考文献

    KuuskANilson T:森林的直向多谱段反射模型。Remote Sensing of Environment200072

How to Cite

《资源环境数学模型手册》 (2018). 森林的直向多谱段反射模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/1207dee1-cb3e-4855-b2dd-63fd55a40a5a
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Last modifier : 
wu kai
Last modify time : 
2020-11-13
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Contributor

Initial contribute: 2018-12-04

Co-contributor(s)

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
View
Is authorship not correct? Feedback

History

Last modifier : 
wu kai
Last modify time : 
2020-11-13
Modify times : 
View History

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