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Author Kuhnert, M. url  openurl
  Title Impact of climate aggregation over different scales on regional NPP modelling Type
  Year 2015 Publication FACCE MACSUR Reports Abbreviated Journal  
  Volume 5 Issue Pages Sp5-32  
  Keywords (up)  
  Abstract In spatial modelling of Net Primary Productivity (NPP), predictability and uncertainty depends on the availability of input data, as well as on the scale of the available data sets. Therefore, the study presented here quantifies the impact of aggregation effect of input data of different scales for a regional modelling approach using 5 different resolutions. As part of this study, the presentation focuses on the impact of the climate aggregation on the simulation of NPP. The effect is investigated on the model results of 11 different crop and biogeochemical models simulating NPP for wheat and maize for the area of the German state of North Rhine-Westphalia. The focus of the study is on the impact of drought effects across the scales considered. The data are analysed on annual time steps we followed two approaches to investigate the impact of water limitation on primary production: First, two model runs, one considers water limitation and the other one ignores the impacts of water limitation on plant production second, an external definition of dry conditions by a drought index, only considering climate data, enables a separation of grid-cells and years with drought impacts, independent of the model internal functions. The results show hardly any difference between the overall average NPP across the scales, but some variability for the impact of extreme weather conditions on the simulated NPP. No Label  
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  Area Expedition Conference MACSUR Science Conference 2015 »Integrated Climate Risk Assessment in Agriculture & Food«, 8–9+10 April 2015, Reading, UK  
  Notes Approved no  
  Call Number MA @ admin @ Serial 2147  
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Author Hoffmann, H.; Zhao, G.; Constantin, J.; Raynal, H.; Wallach, D.; Coucheney, E.; Sosa, C.; Lewan, E.; Eckersten, H.; Specka, X.; Kersebaum, K.-C.; Nendel, C.; Grosz, B.; Dechow, R.; Kuhnert, M.; Yeluripati, J.; Kiese, R.; Haas, E.; Klatt, S.; Teixeira, E.; Bindi, M.; Trombi, G.; Moriondo, M.; Doro, L.; Roggero, P.P.; Zhao, Z.; Wang, E.; Vanuytrecht, E.; Tao, F.; Rötter, R.; Cammarano, D.; Asseng, S.; Weihermüller, L.; Siebert, S.; Gaiser, T.; Ewert, F. openurl 
  Title Effects of soil and climate input data aggregation on modelling regional crop yields Type Conference Article
  Year 2015 Publication Abbreviated Journal  
  Volume Issue Pages  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title MACSUR Science Conference  
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  Area Expedition Conference MACSUR Science Conference, 2015-04-08 to 2015-04-10, Reading, United Kingdom  
  Notes Approved no  
  Call Number MA @ admin @ Serial 5037  
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Author Hoffmann, H.; Zhao, G.; Van Bussel, L.G.J.; Enders, A.; Specka, X.; Sosa, C.; Yeluripati, J.; Tao, F.; Constantin, J.; Teixeira, E.; Grosz, B.; Doro, L.; Zhao, Z.; Nendel, C.; Kiese, R.; Raynal, H.; Eckersten, H.; Haas, E.; Wang, E.; Kuhnert, M.; Lewan, E.; Bach, M.; Kersebaum, K.-C.; Rötter, R.; Roggero, P.P.; Wallach, D.; Krauss, G.; Siebert, S.; Gaiser, T.; Cammarano, D.; Asseng, S.; Ewert, F. openurl 
  Title Influence of climate input data aggregation on simulated yield Type Conference Article
  Year 2014 Publication Abbreviated Journal  
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  Series Editor Series Title Abbreviated Series Title ESA Congress  
  Series Volume 13 Debrecen, Series Issue Edition  
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  Area Expedition Conference ESA Congress, 2014-08-25 to 2014-08-29, Debrecen, 13:  
  Notes Approved no  
  Call Number MA @ admin @ Serial 5039  
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Author Zhao, G.; Hoffmann, H.; Van Bussel, L.G.J.; Enders, A.; Specka, X.; Sosa, C.; Yeluripati, J.; Tao, F.; Constantin, J.; Teixeira, E.; Grosz, B.; Luca, D.; Zhao, Z.; Nendel, C.; Ralf, K.; Raynal, H.; Eckersten, H.; Haas, E.; Wang, E.; Kuhnert, M.; Lewan, E.; Bach, M.; Kersebaum, K.-C.; Rötter, R.; Roggero, P.P.; Wallach, D.; Krauss, G.; Siebert, S.; Gaiser, T.; Cammarano, D.; Asseng, S.; Ewert, F. openurl 
  Title Weather data aggregation’s effect on simulation of cropping systems: a model, production system and crop comparison Type Conference Article
  Year 2014 Publication Abbreviated Journal  
  Volume Issue Pages  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title ESA Congress  
  Series Volume 13 Debrecen, Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference ESA Congress, 2014-08-25 to 2014-08-29, Debrecen, 13:  
  Notes Approved no  
  Call Number MA @ admin @ Serial 5040  
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Author Klatt, S.; Haas, E.; Hoffmann, H.; Zhao, G.; Van Bussel, L.G.J.; Enders, A.; Gaiser, T.; Ewert, F.; Teixeira, E.; Kiese, R.; Doro, L.; Specka, X.; Nendel, C.; Kersebaum, K.-C.; Sosa, C.; Lewan, E.; Eckersten, H.; Gebbert, S.; Dechow, R.; Grosz, B.; Bach, M.; Yeluripati, J.; Tao, F.; Constantin, J.; Raynal, H.; Wallach, D.; Kuhnert, M. openurl 
  Title Responses of soil N2O emissions and nitrate leaching on climate input data aggregation: a biogeochemistry model ensemble study Type Conference Article
  Year 2014 Publication Abbreviated Journal  
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  Series Editor Series Title Abbreviated Series Title CropM International Symposium and Workshop  
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  Area Expedition Conference CropM International Symposium and Workshop, 2014-02-10 to 2014-02-12, Oslo, Norway  
  Notes Approved no  
  Call Number MA @ admin @ Serial 5042  
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