大气校正模型

大气校正模型

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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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大气校正模型

 

式中,L(λ)是卫星传感器记录的辐射;Lr(λ)是Rayleigh路径辐射;La(λ)是气溶胶的路径辐射;Ls(λ)是发自表面的辐射;t(λ,θ)是从像素点到传感器的漫射投射率;λ是考虑波段的中心波长;θ是表面局部法向与像素到传感器方向间的夹角;其计入了地球类球形状的影响。

  

式中,对Rayleigh散射x=r,对气溶胶x=a;μ=cos θ;μ0=cos θ0,θ0是太阳顶角;E0(λ)是对太阳地球距离变化进行了校正的大气顶部的太阳辐射;Toz(λ,μ,μ0)是下行的太阳辐射和上行的路径辐射穿过臭氧层的透射率;τx(λ)是光学厚度;Ψ-(Ψ+)是后向(前向)散射角;Px(Ψ)是相函数;ρ(λ)是表面反射系数。

参考文献

    Singh S M,Saull R J:大气校正对AVHRR获取的多时段的植被指数动力学解释的影响。Remote Sensing of Environment198825

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《资源环境数学模型手册》 (2018). 大气校正模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/186749cf-4b7a-411c-ae26-85355cc7a23a
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Last modifier
wu kai
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2020-11-16
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Initial contribute : 2018-12-04

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Authorship

:  
岳天祥编著
:  
yue@lreis.ac.cn
:  
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Last modifier
wu kai
Last modify time
2020-11-16
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