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Canopy reflectance, photosynthesis, and transpiration. III - A reanalysis using improved leaf models and a new canopy integration schemeThe theoretical analyses of Sellers (1985, 1987), which linked canopy spectral reflectance properties to (unstressed) photosynthetic rates and conductances, are critically reviewed and significant shortcomings are identified. These are addressed in this article principally through the incorporation of a more sophisticated and realistic treatment of leaf physiological processes within a new canopy integration scheme. The results indicate that area-averaged spectral vegetation indices, as obtained from coarse resolution satellite sensors, may give good estimates of the area-integrals of photosynthesis and conductance even for spatially heterogenous (though physiologically uniform) vegetation covers.
Document ID
19930042966
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Sellers, P. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Berry, J. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Collatz, G. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Field, C. B.
(Carnegie Institution of Washington Stanford, CA, United States)
Hall, F. G.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 16, 2013
Publication Date
December 1, 1992
Publication Information
Publication: Remote Sensing of Environment
Volume: 42
Issue: 3
ISSN: 0034-4257
Subject Category
Earth Resources And Remote Sensing
Accession Number
93A26963
Funding Number(s)
CONTRACT_GRANT: NAG5-892
Distribution Limits
Public
Copyright
Other

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