温度无关的谱指数

温度无关的谱指数

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contributed at 2018-12-04

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

Detailed Description

温度无关的谱指数

BeckerLi19901995)定义波段ir温度无关的谱指数ir为:

   

式中,n是温度在合理范围内变化时的特定波段的常数;Tgk是波段k的亮度温度;,(k=ir),是对给定像元在N波段中的最高表面亮度温度,是在波段k的下行半球面大气辐射,而Bk(Ts)是当表面为温度Ts­的黑体时测量到的波段辐射;Ri是在地面水平观测到的波段i的辐射;Iir基本独立于表面温度,可近似为,εi是波段i的发射率。

参考文献

    Li Z L,BeckerF,Stoll M P et al:对从模拟的热红外多波段扫描仪数据提取相对谱发射率信息的不同方法的评估。Remote Sensing of Environment199969

How to cite

《资源环境数学模型手册》 (2018). 温度无关的谱指数, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/5cffb5b6-d175-489f-9d5f-79b758704e2d
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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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