섬유

soil and sun angle interactions on partial canopy spectra

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 254
the spectral behavior of an incomplete cotton canopy was analyzed in relation to solar zenith angle and soil background variations. soil and vegetation spectral contributions towards canopy response were separated using a first-order interactive model and consequently used to compare the relative sensitivity of canopy spectra to soil background and solar angle differences. canopy reflectance behavior with solar angle increased, decreased or remained invariant depending on the reflectance properties of the underlying soil. sunlit and shaded soil contributions were found to alter vegetation index behavior significantly over different sun angles. (author abstract) 18 refs
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