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Evaluating North American net primary productivity with satellite observationsAn ecological model is developed to estimate annual net primary productivity (NPP) in 12 North American biomes. The model combines existing models which address canopy photosynthesis in response to light, temperature, and moisture availability, and account for respiration. Climate data, solar radiation data, and spectral vegetation index data are utilized. Estimates of NPP from the model compare well with data in the literature, but a systematic error is suspected. Difficulties encountered in specifying certain model parameters are discussed as possible sources of this error. The results of this study suggest the promise of remotely sensed measurements for macroscale evaluation and modeling of NPP.
Document ID
19880040592
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Goward, Samuel N.
(Maryland, University College Park, United States)
Dye, Dennis G.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Publication Information
Publication: Advances in Space Research
Volume: 7
Issue: 11 1
ISSN: 0273-1177
Subject Category
Earth Resources And Remote Sensing
Accession Number
88A27819
Funding Number(s)
CONTRACT_GRANT: NCC5-26
Distribution Limits
Public
Copyright
Other

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