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Author |
Müller, C. |
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Title |
Climate change impacts, uncertainties and implications |
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Conference Article |
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Year |
2013 |
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CropM |
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First Workshop Expert Network Management of Climate change induced Risks, Hamburg, Germany, 2013-03-20 to 2013-03-21 |
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MA @ admin @ |
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2665 |
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Author |
Müller, C. |
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Title |
Multi-sector interaction in climate change impact analysis |
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Conference Article |
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2013 |
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CropM |
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Impacts World 2013, International Conference on Climate Change Effects, Potsdam, Germany, 2013-05-27 to 2013-05-30 |
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no |
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MA @ admin @ |
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2666 |
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Minet, J.; Tychon, B.; Jacquemin, I.; François, L. |
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Title |
Can a global dynamic vegetation model be used for both grassland and crop modeling at the local scale |
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Conference Article |
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2014 |
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CropM; LiveM |
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MACSUR CropM International Symposium and Workshop: Modelling climate change impacts on crop production for food security, Oslo, Norway, 2014-02-10 to 2014-02-12 |
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no |
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MA @ admin @ |
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2641 |
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Author |
Martre, P.E.A. |
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Title |
Error and uncertainty of wheat multimodel ensemble projections |
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Conference Article |
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2014 |
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MACSUR CropM International Symposium and Workshop: Modelling climate change impacts on crop production for food security, Oslo, Norway, 2014-02-10 to 2014-02-12 |
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no |
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Call Number |
MA @ admin @ |
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2633 |
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Author |
Wallach, D.; Nissanka, S.P.; Karunaratne, A.S.; Weerakoon, W.M.W.; Thorburn, P.J.; Boote, K.J.; Jones, J.W. |
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Title |
Accounting for both parameter and model structure uncertainty in crop model predictions of phenology: A case study on rice |
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Journal Article |
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Year |
2016 |
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European Journal of Agronomy |
Abbreviated Journal |
European Journal of Agronomy |
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Uncertainty; Phenology; Parameter uncertainty; Multi-model ensemble; Generalized least squares; Rice; Crop model; APSIM; DSSAT |
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Abstract |
We consider predictions of the impact of climate warming on rice development times in Sri Lanka. The major emphasis is on the uncertainty of the predictions, and in particular on the estimation of mean squared error of prediction. Three contributions to mean squared error are considered. The first is parameter uncertainty that results from model calibration. To take proper account of the complex data structure, generalized least squares is used to estimate the parameters and the variance-covariance matrix of the parameter estimators. The second contribution is model structure uncertainty, which we estimate using two different models. An ANOVA analysis is used to separate the contributions of parameter and model uncertainty to mean squared error. The third contribution is model error, which is estimated using hindcasts. Mean squared error of prediction of time from emergence to maturity, for baseline +2 °C, is estimated as 108 days2, with model error contributing 86 days2, followed by model structure uncertainty which contributes 15 days2 and parameter uncertainty which contributes 7 days2. We also show how prediction uncertainty is reduced if prediction concerns development time averaged over years, or the difference in development time between baseline and warmer temperatures. |
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2016-09-13 |
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ISSN |
1161-0301 |
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Article |
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CropM |
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Notes |
CropM; wos; ftnotmacsur; wsnotyet; |
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no |
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Call Number |
MA @ admin @ |
Serial |
4777 |
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