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Estimation of surface heat and moisture fluxes over a prairie grassland. IV - Impact of satellite remote sensing of slow canopy variables on performance of a hybrid biosphere modelNumerical experiments are conducted using the Ex-BATS model of Crosson and Weng (1993), which is an adaptation the Dickinson (1983, 1984) and Dickinson et al. (1986) biosphere model BATS. The purpose of these experiments is the assessment of the Ex-BATS performance when using remotely sensed data for the estimation of three key canopy variables retrieved from NOAA-AVHRR measurements: the total surface albedo, the leaf area index (LAI), and the nondiurnally varying component of stomatal resistance, r(s). The results of the simulations, which cover the entire FIFE 1987 time period, show that the satellite retrievals of r(s) are only 20 to 30 percent less accurate than the idealized results of the control experiment. The performance of the model which used satellite retrieval of the surface albedo and LAI was essentially equivalent to the hypothetical version.
Document ID
19930048363
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Crosson, William L.
(Universities Space Research Association Huntsville, AL, United States)
Smith, Eric A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Cooper, Harry J.
(Florida State Univ. Tallahassee, United States)
Date Acquired
August 16, 2013
Publication Date
March 20, 1993
Publication Information
Publication: Journal of Geophysical Research
Volume: 98
Issue: D3
ISSN: 0148-0227
Subject Category
Meteorology And Climatology
Accession Number
93A32360
Funding Number(s)
CONTRACT_GRANT: DE-FC05-85ER-25000
CONTRACT_GRANT: NAG5-891
Distribution Limits
Public
Copyright
Other

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