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Author |
Wallach, D.; Thorburn, P.; Asseng, S.; Challinor, A.J.; Ewert, F.; Jones, J.W.; Rötter, R.; Ruane, A. |
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Title |
Estimating model prediction error: Should you treat predictions as fixed or random |
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Journal Article |
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Year |
2016 |
Publication |
Environmental Modelling & Software |
Abbreviated Journal |
Env. Model. Softw. |
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Volume |
84 |
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Pages |
529-539 |
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Keywords |
Crop model; Uncertainty; Prediction error; Parameter uncertainty; Input uncertainty; Model structure uncertainty |
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Abstract |
Crop models are important tools for impact assessment of climate change, as well as for exploring management options under current climate. It is essential to evaluate the uncertainty associated with predictions of these models. We compare two criteria of prediction error; MSEPfixed, which evaluates mean squared error of prediction for a model with fixed structure, parameters and inputs, and MSEPuncertain(X), which evaluates mean squared error averaged over the distributions of model structure, inputs and parameters. Comparison of model outputs with data can be used to estimate the former. The latter has a squared bias term, which can be estimated using hindcasts, and a model variance term, which can be estimated from a simulation experiment. The separate contributions to MSEPuncertain(X) can be estimated using a random effects ANOVA. It is argued that MSEPuncertain(X) is the more informative uncertainty criterion, because it is specific to each prediction situation. |
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1364-8152 |
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CropM, ft_macsur |
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no |
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MA @ admin @ |
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4773 |
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Author |
Banse, M.; Brouwer, F.; Palatnik, R.R.; Sinabell, F. |
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Title |
The Economics of European Agriculture under Conditions of Climate Change (Editorial) |
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Journal Article |
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Year |
2014 |
Publication |
German Journal of Agricultural Economics |
Abbreviated Journal |
German Journal of Agricultural Economics |
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Volume |
63 |
Issue |
3 |
Pages |
131-132 |
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Abstract |
This Special Issue on “The Economics of European Agriculture under Conditions of Climate Change” brings together a selection of papers that contribute to the understanding of recent developments related to agriculture and climate change in four European coun- tries. The focus of the Special Issue is on quantitative modeling and empirical analyses. The papers presented here not only cover the heterogeneity of agriculture in Europe with case studies from the Mediterranean (Italy), central (Austria) and north-western Europe (Ireland and Scotland) but also give insights into the diversity of quantitative modeling approaches in agriculture. |
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Editorial material |
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TradeM, ft_macsur |
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no |
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MA @ admin @ |
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4763 |
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Author |
Liu, X.; Lehtonen, H.; Purola, T.; Pavlova, Y.; Rötter, R.P., T. |
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Title |
Dynamic economic modelling of crop rotation with adaptation practices |
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Conference Article |
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2014 |
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TradeM |
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14th EAAE Congress, Ljubljana (Slovenia), 2014-08-26 to 2014-08-29 |
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no |
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MA @ admin @ |
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2604 |
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Lehtonen, H.; Rötter, R.; T., P. |
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Title |
Farm level analysis as a key to integrated regional case studies in Finland |
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2013 |
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TradeM |
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MACSUR TradeM workshop: Exploring new ideas for trade and agriculture model integration for assessing the impacts of climate change on food security, The Natural Resource and Environmental Research Center (NRERC), University of Haifa, Israel, 2013-03-03 t |
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no |
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MA @ admin @ |
Serial |
2596 |
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Author |
Lazar, C. |
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Title |
Modelling of crop growth and development as an instrument for analysis of orientations in agricultural research in the context of climate changes (context and opinions) In Romanian: Modelarea cresterii si dezvoltarii plantelor de cultura ca instrument de analiza a directiilor de cercetare agricola în contextul schimbarilor climatic) |
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Conference Article |
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2012 |
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CropM |
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Workshop on climate change organized by Romanian Academy of Sciences (Bucharest, Romania), 2012-11-23 to 2012-11-23 |
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no |
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Call Number |
MA @ admin @ |
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2587 |
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