从AVHRR短波波段估计BRDF的数学模型

从AVHRR短波波段估计BRDF的数学模型

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Initial contribute: 2018-12-04

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

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AVHRR短波波段估计BRDF的数学模型

(1)    二向反射分布函数(BRDF)模型:

      反射辐射与入射太阳辐射通量密度间的关系式为:

式中,r是二向反射分布函数(BRDF);入射与反射光线的方向记为天顶角与方位角

(2)    StaylorSuttles提出的沙漠BDRF模型:

         

式中,r对方位角的平均值,其计算公式为

(3)    StaylorSuttles取参数值为:

        

式中,a,b,c和是参数,是相对方位角的平均值。

(4)    Li提出的稀疏冠层的BRDF模型:

在这个模型中利用高度为2b,宽度为2a,中心在地面上方h的回转椭球体来对树进行理想化描述,BRDF方程为:

  

式中,是线性参数,而k是函数核。

参考文献

    Brien D M O,MitchellR M,Edwards M et al:从AVHRR短波波段估计BRDF:在澳大利亚半干旱站点进行试验。Remote Sensing ofEnvironment,199866

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《资源环境数学模型手册》 (2018). 从AVHRR短波波段估计BRDF的数学模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/7b39781f-1605-4eda-be24-ef5413638b78
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Last modifier
Zhiyi Zhu
Last modify time
2020-12-18
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Contributor(s)

Initial contribute : 2018-12-04

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Authorship

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

History

Last modifier
Zhiyi Zhu
Last modify time
2020-12-18
Modify times

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