Analysis of optimal narrow band RVI for estimating foliar photosynthetic pigments based on PROSPECT model

Hong Wang, Runhe Shi, Pudong Liu, Mingliang Ma, Wei Gao

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

Abstract

Remote sensing is an effective tool to estimate foliar pigments contents with the analysis of vegetation index. The crucial issue is how to choose the optimal bands-combination to conduct the vegetation index. In this study, RVI, a vegetation index computed by the reflectance of Red and NIR bands, has been used to estimate the contents of chlorophyll and carotenoid. The reflectance of the two bands forming the narrow band RVI was simulated by the PROSPECT model. The possible combinations of narrow band RVI were examined from 400 nm to 800 nm. The results showed that: At the leaf level, estimation of chlorophyll content can be identified in narrow band RVI. Ranges for these bands included: (1) 549-589nm, 616-636nm or 729-735nm combined with 434-454nm; (2) 663-688nm, 710-717nm, 719-728nm or 730- 739nm combined with 549-561nm; (3) 663-688nm combined with 569-615nm. However, no valid narrow-band RVI for the estimation of carotenoid content was successfully identified. Our results also showed that two rules should be followed when choosing optimal bands-combination: (1) the selected bands must have minimal interference from other biochemical constituents; (2) there should be distinct differences between the sensitivities of the bands selected for particular pigments.

Original languageEnglish
Title of host publicationRemote Sensing and Modeling of Ecosystems for Sustainability XI
EditorsJinnian Wang, Ni-Bin Chang, Wei Gao
PublisherSPIE
ISBN (Electronic)9781628412482
DOIs
StatePublished - 2014
EventRemote Sensing and Modeling of Ecosystems for Sustainability XI - San Diego, United States
Duration: 18 Aug 201420 Aug 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9221
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceRemote Sensing and Modeling of Ecosystems for Sustainability XI
Country/TerritoryUnited States
CitySan Diego
Period18/08/1420/08/14

Keywords

  • Carotenoid
  • Chlorophyll
  • Narrow band ratio vegetation index
  • PROSPECT model

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