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

  • Pudong Liu
  • , Runhe Shi
  • , Hong Wang
  • , Chaoshun Liu
  • , Zhibin Sun
  • , Wei Gao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationRemote Sensing and Modeling of Ecosystems for Sustainability XII
EditorsNi-Bin Chang, Wei Gao
PublisherSPIE
ISBN (Electronic)9781628417760
DOIs
StatePublished - 2015
EventRemote Sensing and Modeling of Ecosystems for Sustainability XII - San Diego, United States
Duration: 11 Aug 201512 Aug 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9610
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceRemote Sensing and Modeling of Ecosystems for Sustainability XII
Country/TerritoryUnited States
CitySan Diego
Period11/08/1512/08/15

Keywords

  • EFAST
  • PROSAIL
  • Sensitivity analysis
  • canopy
  • reflectance

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