Sensitivity of APSIM/ORYZA model due to estimation errors in solar radiation
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Data
2012
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Resumo
rop models are ideally suited to quantify existing climatic risks. However, they require historic climate data as input. While
daily temperature and rainfall data are often available, the lack of observed solar radiation (R s ) data severely limits site-
specific crop modelling. The objective of this study was to estimate R s based on air temperature solar radiation models and
to quantify the propagation of errors in simulated radiation on several APSIM/ORYZA crop model seasonal outputs, yield, bio-
mass, leaf area (LAI) and total accumulated solar radiation (SRA) during the crop cycle. The accuracy of the 5 models for esti-
mated daily solar radiation was similar, and it was not substantially different among sites. For water limited environments (no
irrigation), crop model outputs yield, biomass and LAI was not sensitive for the uncertainties in radiation models studied here.
Key words: crop model, calibration, upland rice.
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Crop model, Calibration, upland rice, Crop model, Calibration, Upland rice
Citação
HEINEMANN, Alexandre Bryan; VAN OORT, Pepijn A. J.; FERNANDES, Diogo Simões; MAIA, Aline de Holanda Nunes. Sensitivity of APSIM/ORYZA model due to estimation errors in solar radiation. Bragantia, Campinas, v. 71, n. 4, p. 572-582, 2012.