地形对遥感数据影响的估计模型

地形对遥感数据影响的估计模型

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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

地形对遥感数据影响的估计模型

(1)    直接太阳辐射:

为穿过大气层后到达地面的直接辐射度照度,一个像素接收到的辐射为:

式中,N是地形的法向方向;S是太阳方向角。

(2)    漫射太阳辐射

对山区地形中每一个像素,天空散射的辐射()用水平地面估计:

  

通常可用两个公式来估计g

Kondratyev(1977):

  

TempsCoulson(1977):

  

式中,P在两个式子中都等于地形的坡度;是太阳的仰角; ;是太阳的顶角。

可用另外一个公式表示:

 

式中,是太阳周边部分,可视为直接辐射的附加成分;是由于漫射辐射导致的各向同性部分。

参考文献

    Proy C,Tanre D,Deschamps P Y:地形对遥感数据的影响评估。Remote Sensing of Environment,1989,30

 

How to Cite

《资源环境数学模型手册》 (2018). 地形对遥感数据影响的估计模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/5f381ec5-ef3e-4cb4-b781-8ab1bcb0301c
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Last modifier : 
haolingchen
Last modify time : 
2020-10-29
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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 : 
haolingchen
Last modify time : 
2020-10-29
Modify times : 
View History

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