Analysis of vegetation isolines in red-NIR reflectance space

H. Yoshioka, T. Miura, A. R. Huete, B. D. Ganapol

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Abstract

The characteristic behavior of red-near-infrared (NIR) reflectance-based vegetation isolines were analyzed by focusing on its three features: the slope, NIR-intercept, and the intersection between the vegetation isoline and the soil line. These properties are the key factors in understanding variations of vegetation index values with changes of canopy background brightness, known as background noise. The analysis was conducted based on a vegetation isoline equation derived by using the representation of canopy reflectance by the adding method. The isoline parameters, slopes, and NIR-intercepts of vegetation isolines were numerically obtained by the SAIL canopy model. Some of the known behaviors of the vegetation isoline were simulated and analyzed in detail. (C) Elsevier Science Inc., 2000.

Original languageEnglish (US)
Pages (from-to)313-326
Number of pages14
JournalRemote Sensing of Environment
Volume74
Issue number2
DOIs
StatePublished - Nov 1 2000

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ASJC Scopus subject areas

  • Soil Science
  • Geology
  • Computers in Earth Sciences

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