Influence of canopy biochemical and biophysical variables on reflectance spectra based on canopy radiative transfer model with adding noise

被引：0

作者：

Liu, Pudong ^{[1
,2
,3
,4
,5
]}

Shi, Runhe ^{[1
,2
,3
,4
,5
]}

Wang, Hong ^{[1
,2
,3
,4
,5
]}

Liu, Chaoshun ^{[1
,2
,3
,4
,5
]}

Sun, Zhibin ^{[6
]}

Gao, Wei ^{[1
,2
,3
,4
,5
,6
,7
]}

机构：

[1] E China Normal Univ, Key Lab Geog Informat Sci, Minist Educ, Shanghai 200241, Peoples R China

[2] E China Normal Univ, Joint Lab Environm Remote Sensing & Data Assimila, Shanghai 200241, Peoples R China

[3] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Shanghai 200241, Peoples R China

[4] E China Normal Univ, Joint Res Inst New Energy & Environm, Shanghai 200062, Peoples R China

[5] Colorado State Univ, Shanghai 200062, Peoples R China

[6] Colorado State Univ, Nat Resource Ecol Lab, Ft Collins, CO 80523 USA

[7] Colorado State Univ, Dept Ecosyst Sci & Sunstainabil, Ft Collins, CO 80523 USA

来源：

REMOTE SENSING AND MODELING OF ECOSYSTEMS FOR SUSTAINABILITY XII | 2015年 / 9610卷

关键词：

Sensitivity analysis; canopy; reflectance; EFAST; PROSAIL; SENSITIVITY; LEAF; PROSPECT;

D O I：

10.1117/12.2186727

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

To provide a reference for canopy parameters inversion, sensitivity analysis of plant canopy parameters based on remote sensing model is a prerequisite for the inversion. Because the local sensitivity analysis do not consider the coupling effect among the parameters, the EFAST (i.e., Extended Fourier Amplitude Sensitivity Test), a global sensitivity analysis, can be used not only for the analysis of each parameter, but also consider the interacted effect among each parameter. Based on PROSAIL model, the paper focused on the parameters' sensitivity by using simulated data and EFAST method. The results showed that the EFAST considered not only the contribution of single parameter, but also the interactive effects among each parameter, and four parameters, leaf area index (LAI), leaf mesophyll structure (N), the controller factor of the average leaf slope (LIDFa) and soil moisture condition (psoil) had great effect on the canopy reflectance in the whole wavelength from 400 to 2500 nm than other canopy parameters, and the EFAST method enlarged the contribution of some parameters that had little effects.

引用

页数：8

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