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Relations between surface conductance and spectral vegetation indices at intermediate (100 m sq to 15 km sq) length scalesThe relationship between surface conductance and spectral vegetation indices is investigated utilizing the FIFE data set, principally the surface flux station data and images from the TM instrument. It is found that the unstressed canopy conductance for a given site for a given day is near-linearly related to the incident PAR flux. Estimates of unstressed canopy conductance were acquired via a model inversion that separated the soil and vegetation contributions to evapotranspiration and made adjustments for the effects of vapor pressure deficit and soil moisture stress.
Document ID
19930036638
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Sellers, Piers J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Heiser, Mark D. (Maryland Univ. College Park, United States)
Hall, Forrest G. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 15, 2013
Publication Date
November 30, 1992
Publication Information
Publication: Journal of Geophysical Research
Volume: 97
Issue: D17
ISSN: 0148-0227
Subject Category
Earth Resources And Remote Sensing
Accession Number
93A20635
Funding Number(s)
CONTRACT_GRANT: NAG5-892
Distribution Limits
Public
Copyright
Other

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