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Elsevier, Remote Sensing of Environment, 2-3(98), p. 212-224

DOI: 10.1016/j.rse.2005.07.006

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A MODIS-derived photochemical reflectance index to detect inter-annual variations in the photosynthetic light-use efficiency of a boreal deciduous forest

Journal article published in 2005 by Guillaume G. Drolet ORCID, Karl F. Huemmrich, Forrest G. Hall, Elizabeth M. Middleton, T. Andrew Black, T. Andrew Black, Alan G. Barr, Hank A. Margolis
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This paper is available in a repository.

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Abstract

The relationships between ecosystem-level light use efficiency (LUE) obtained from an eddy covariance flux tower and MODIS-derived values of a scaled Photochemical Reflectance Index (sPRI) were investigated for a boreal aspen stand (Populus tremuloides Michx.) in Saskatchewan, Canada. Using MODIS ocean band 11 at 531 nm, we tried to detect variations in canopy reflectance related to the xanthophyll cycle. We tested several other MODIS bands as the reference band because the 570 nm reference band that had been determined to be optimum for calculating PRI in earlier studies is not available on MODIS.