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Evaluation of the Penman-Monteith model for estimating soybean evapotranspiration Inra
Ortega-Farias, S.; Olioso, A.; Antonioletti, R.; Brisson, N..
The Penman-Monteith model with a variable surface canopy resistance (rcv) was evaluated to estimate hourly and daily crop evapotranspiration (ETc) over a soybean canopy for different soil water status and atmospheric conditions. The hourly values of rcv were computed as a function of environmental variables (air temperature, vapor pressure deficit, net radiation) and a normalized soil water factor (F), which varies between 0 (wilting point, thetaWP) and 1 (field capacity, thetaFC). The performance of the Penman-Monteith model (ETPM) was evaluated using hourly and daily values of ETc obtained from the combined aerodynamic method (ETR). On an hourly basis, the overall standard error of estimate (SEE) and the absolute relative error (ARE) were 0.06 mm h–1 (41...
Tipo: Journal Article Palavras-chave: EQUATION DE PENMAN-MONTEITH.
Ano: 2004 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0400031134102026&uri=/notices/prodinra1/2010/11/
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