植被吸收的PAR双向反射估计模型

植被吸收的PAR双向反射估计模型

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contributed at 2018-12-04

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Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Geography SubjectGIScience & Remote SensingGround Feature Spectrum

Detailed Description

植被吸收的PAR双向反射估计模型

   1)重新标准化差异植被指数(Irdv)定义为:

 

式中,R­viRni分别是可见光与近红外波段的目标反射。

2)对反射率ρopt,如选择后向散射方向ψ=0°及θs=60°,θv=45°,有:

       

  对ψ=90°及θs=θv=60°,有:

         

 3Irdv可用下式估计:

     

式中,k0k1k2均为依赖于冠层物理特性的参数。

    Irdvopt-fAPAR的平均关系式为:

            

式中,ab是回归系数。

参考文献

   Roujean J LBreon FM:通过双向反射测量估计植被吸收的PARRemote Sensingof Environment199551

How to cite

《资源环境数学模型手册》 (2018). 植被吸收的PAR双向反射估计模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/601993de-1280-446f-9aba-62d2d6142592
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Contributor

contributed at 2018-12-04

Authorship

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

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