利用C波段雷达数据监视农作物生物量的方法

利用C波段雷达数据监视农作物生物量的方法

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Initial contribute: 2018-12-04

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

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利用C波段雷达数据监视农作物生物量的方法

   1)辐射传输方程的一阶解为:

          

式中,是大豆的后向散射系数;是作物冠层的直向的后向散射成分;是裸地的后向散射系数;L是单向衰减因子,可表达为L=exp(τ/cosθ),τ是植被层的光学厚度,θ是入射角。

2)散射元倾角分布[p(β)]为:

式中,A是归一化因子;n是形状因子;概率密度在βm处取得最大值,而在χ0处为0;β1和β2是积分的上下限。

3)两个基本得关系:

            

式中,W­C是植物中水分的总量,在作物生长期对HH极化方向进行了校准的关系方程为:当WC1.85kgm-2,则WC1.85kgm-2,则CD是回归参数,C=0.0631D=1.1831

 

参考文献

    WigneronJ PFerrazzoli P,Olioso A et al:利用C波段雷达数据监视农作物生物量的简单方法。Remote Sensing of Environment199969

How to Cite

《资源环境数学模型手册》 (2018). 利用C波段雷达数据监视农作物生物量的方法, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/f4577d64-affa-404a-9e08-0534ab3bac16
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Last modifier : 
wu kai
Last modify time : 
2020-11-17
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Contributor

Initial contribute: 2018-12-04

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Authorship

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

History

Last modifier : 
wu kai
Last modify time : 
2020-11-17
Modify times : 
View History

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