Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 442577
Title Sensitivity of APSIM/ORYZA model due to estimation errors in solar radiation
Author(s) Heinemann, A.B.; Oort, P.A.J. van; Simoes Fernandes, D.; Maia, A.H.N.
Source Bragantia 71 (2012)4. - ISSN 0006-8705 - p. 572 - 582.
Department(s) Centre for Crop Systems Analysis
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) upland rice - new-zealand - simulation - temperature - systems - variables - brazil - apsim
Abstract Crop 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 (Rs) data severely limits site-specific crop modelling. The objective of this study was to estimate Rs 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, biomass, leaf area (LAI) and total accumulated solar radiation (SRA) during the crop cycle. The accuracy of the 5 models for estimated 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.
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