Why confining to vegetation indices? exploiting the potential of improved spectral observations using radiative transfer models

C. Atzberger, K. Richter, F. Vuolo, R. Darvishzadeh, M. Schlerf

Research output: Contribution to conferenceConference paperAcademicpeer-review

26 Citations (Scopus)

Abstract

Vegetation indices (VI) combine mathematically a few selected spectral bands to minimize undesired effects of soil background, illumination conditions and atmospheric perturbations. In this way, the relation to vegetation biophysical variables is enhanced. Albeit numerous experiments found close relationships between vegetation indices and several important vegetation biophysical variables, well known shortcomings and drawbacks remain. Important limitations of VIs are illustrated and discussed in this paper. As most of the limitations can be overcome using physically-based radiative transfer models (RTM), advantages and limits of RTM are also presented. © 2011 SPIE.
Original languageEnglish
DOIs
Publication statusPublished - 2011
EventRemote Sensing for Agriculture, Ecosystems, and Hydrology XIII -
Duration: 19 Sept 201121 Sept 2011

Conference

ConferenceRemote Sensing for Agriculture, Ecosystems, and Hydrology XIII
Period19/09/1121/09/11

Keywords

  • Biophysical variables
  • Imaging spectroscopy
  • NDVI
  • Radiative transfer model
  • Vegetation index

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