一个新的冠层反射模型

一个新的冠层反射模型

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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

一个新的冠层反射模型

Kuusk A: ―个快速、可逆的冠层反射模型。Remote Sensing ofEnvironment, 1995, 51

(1) 直接日照辐射的单散射已经从漫散通量中分离出来:

式中,是冠层半球方向上的反射因子;是双向反射因子中的单散射成分;是半球方向反射因子中的共同成分;分别是在植被冠层水平面上的直接日照辐射和总辐射量。

(2) 向下和向上的漫射通量和分分别表示为:

(3) 在方向上漫射通量相关的辐射通量是:

式中,z是在冠层中的深度;z=0表示在冠层的上边界;z=H即为地面;是直接日照通量;A,B,C,D,mk是系数。

4SAIL系数i=1,2)可以通过Ross-NilsonG-函数来表示:

式中,是极角;是叶面积指数。

5Ross-Nilson G-函数定义为:

式中,是叶片的法向矢量;是在方向的单位矢量;

 

How to Cite

《资源环境数学模型手册》 (2018). 一个新的冠层反射模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/44555826-3d9f-4fc3-8195-f3c4053eaa6e
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Last modifier : 
zhengzhong
Last modify time : 
2020-12-19
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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 : 
zhengzhong
Last modify time : 
2020-12-19
Modify times : 
View History

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