<codeBook xmlns="ddi:codebook:2_5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="ddi:codebook:2_5 https://ddialliance.org/Specification/DDI-Codebook/2.5/XMLSchema/codebook.xsd" version="2.5" xml:lang="de-DE"><docDscr><citation><titlStmt><titl xml:lang="de-DE">Winter wheat simulation outputs across Europe (1991–2020)</titl><IDNo agency="DOI">doi:10.60507/FK2/QCZ9KA</IDNo></titlStmt><distStmt><distrbtr source="archive">bonndata</distrbtr><distDate>2026-01-20</distDate></distStmt><verStmt source="archive"><version date="2026-01-20" type="RELEASED">1</version></verStmt><biblCit>Behrend, Dominik; Nguyen, Thuy Huu; Baca Cabrera, Juan C.; Baumert, Josef; Gonçalves Bazzo, Clara Oliva; Jones, Dylan; Lobet, Guillaume; Seidel, Sabine J.; Srivastava, Amit Kumar; Storm, Hugo; Vanderborght, Jan; Ewert, Frank; Gaiser, Thomas, 2026, "Winter wheat simulation outputs across Europe (1991–2020)", https://doi.org/10.60507/FK2/QCZ9KA, bonndata, V1</biblCit></citation></docDscr><stdyDscr><citation><titlStmt><titl xml:lang="de-DE">Winter wheat simulation outputs across Europe (1991–2020)</titl><subTitl>Breeding changes water use of winter wheat across Europe</subTitl><IDNo agency="DOI">doi:10.60507/FK2/QCZ9KA</IDNo></titlStmt><rspStmt><AuthEnty affiliation="University of Bonn">Behrend, Dominik</AuthEnty><AuthEnty affiliation="University of Bonn">Nguyen, Thuy Huu</AuthEnty><AuthEnty affiliation="Forschungszentrum Jülich">Baca Cabrera, Juan C.</AuthEnty><AuthEnty affiliation="University of Bonn">Baumert, Josef</AuthEnty><AuthEnty affiliation="University of Bonn">Gonçalves Bazzo, Clara Oliva</AuthEnty><AuthEnty affiliation="IPK Gatersleben">Jones, Dylan</AuthEnty><AuthEnty affiliation="UC-Louvain">Lobet, Guillaume</AuthEnty><AuthEnty affiliation="BOKU University">Seidel, Sabine J.</AuthEnty><AuthEnty affiliation="ZALF">Srivastava, Amit Kumar</AuthEnty><AuthEnty affiliation="University of Bonn">Storm, Hugo</AuthEnty><AuthEnty affiliation="Forschungszentrum Jülich">Vanderborght, Jan</AuthEnty><AuthEnty affiliation="University of Bonn">Ewert, Frank</AuthEnty><AuthEnty affiliation="University of Bonn">Gaiser, Thomas</AuthEnty></rspStmt><prodStmt><producer affiliation="University of Bonn">Behrend, Dominik</producer><prodDate>2026-01-09</prodDate><software version="5.0">SIMPLACE Crop Modeling Framework</software><software version="4.5.1">R</software><grantNo agency="Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)">450058266</grantNo></prodStmt><distStmt><distrbtr source="archive">bonndata</distrbtr><contact affiliation="University of Bonn" email="dbehrend@uni-bonn.de">Behrend, Dominik</contact><depositr>Behrend, Dominik</depositr><depDate>2026-01-15</depDate></distStmt><holdings URI="https://doi.org/10.60507/FK2/QCZ9KA"/></citation><stdyInfo><subject><keyword xml:lang="en">Agricultural Sciences</keyword><keyword xml:lang="en">Earth and Environmental Sciences</keyword><keyword xml:lang="de-DE">Agricultural Sciences</keyword><keyword xml:lang="de-DE">Earth and Environmental Sciences</keyword></subject><abstract date="2026-01-15" xml:lang="de-DE">This dataset contains spatially explicit, process-based simulation outputs of winter wheat growth and water use across Europe. Simulations were conducted over a 30-year historical climate period and aggregated to seasonal values from sowing to harvest. The dataset includes simulations for 2 winter wheat cultivars (Tommi and S. Dickkopf). As defined in the associated manuscript, Tommi represents a modern cultivar (released 2002), S. Dickkopf represents a historic cultivar (released 1895). The dataset was generated to support analyses of cultivar-specific differences in transpiration and related variables under contrasting climatic conditions.</abstract><sumDscr><timePrd cycle="P1" event="start" date="1991-01-01">1991-01-01</timePrd><timePrd cycle="P1" event="end" date="2020-12-31">2020-12-31</timePrd><dataKind>Model Simulation outputs and inputs</dataKind></sumDscr></stdyInfo><method><dataColl><sources><dataSrc>Model input weather data was derived from the Era5 reanalysis dataset: 
https://doi.org/10.24381/cds.adbb2d47
Data can be downloaded here: https://cds.climate.copernicus.eu/datasets/reanalysis-era5-single-levels?tab=download
This includes the following files of the dataset:
 /data/winter_wheat_simulation_inputs_europe_seasonal_weather_1990-2020_v1.0.csv
/data/winter_wheat_simulation_inputs_europe_yearly_weather_1990-2020_v1.0.csv</dataSrc><dataSrc>Soil Input data was derived from the SoilGrids2.0 1000 m dataset: 
https://doi.org/10.5194/soil-7-217-2021
Data can be downloaded here: https://files.isric.org/soilgrids/latest/data/
This includes the following files of the dataset:
data/winter_wheat_simulation_inputs_europe_soilprofile_mean_1990-2020_v1.0.csv.gz</dataSrc><dataSrc>The crop map file was derived from:
Baumert, J., Heckelei, T., &amp; Storm, H. (2025). A dataset of yearly probabilistic crop type maps for the EU from 1990 to 2018. Data in Brief, 60, 111472, https://doi.org/10.1016/j.dib.2025.111472. 
Data can be downloaded here: https://doi.org/10.5281/zenodo.14409497
This includes the following files of the dataset:
/data/wheat_cropmask_europe_v1.0.tif</dataSrc><dataSrc>The Climate classification was derived from:
Beck, Hylke E., Niklaus E. Zimmermann, Tim R. McVicar, Noemi Vergopolan, Alexis Berg, and Eric F. Wood. 2018. ‘Present and Future Köppen-Geiger Climate Classification Maps at 1-Km Resolution’. Scientific Data 5 (1): 180214. https://doi.org/10.1038/sdata.2018.214.
Data can be downloaded here: https://doi.org/10.6084/m9.figshare.6396959 
This includes the following files of the dataset:
/data/Beck_KG_V1_present_0p0083.tif</dataSrc><dataSrc>The shape file on country level for the world was derived from:
https://www.naturalearthdata.com/
Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com.</dataSrc></sources></dataColl><anlyInfo/></method><dataAccs><setAvail/><useStmt/><notes type="DVN:TOU" level="dv">&lt;a href="http://creativecommons.org/licenses/by/4.0">CC BY 4.0&lt;/a></notes></dataAccs><othrStdyMat><relPubl><citation><titlStmt><titl>Behrend, Dominik, Thuy Huu Nguyen, Hubert Hüging, et al. 2025. ‘Biomass Partitioning and Canopy Architecture of Six German Winter Wheat Cultivars Released between 1895 and 2002’. Preprint, September 18. ESS Open Archive.</titl></titlStmt><biblCit>Behrend, Dominik, Thuy Huu Nguyen, Hubert Hüging, et al. 2025. ‘Biomass Partitioning and Canopy Architecture of Six German Winter Wheat Cultivars Released between 1895 and 2002’. Preprint, September 18. ESS Open Archive.</biblCit></citation><ExtLink URI="https://doi.org/10.22541/essoar.175822260.03180911/v1"/></relPubl><relPubl><citation><titlStmt><titl>Lan, X., P. Tans, and K.W. Thoning. 2025. ‘Trends in Globally-Averaged CO2 Determined from NOAA Global Monitoring Laboratory Measurements’. January.</titl></titlStmt><biblCit>Lan, X., P. Tans, and K.W. Thoning. 2025. ‘Trends in Globally-Averaged CO2 Determined from NOAA Global Monitoring Laboratory Measurements’. January.</biblCit></citation><ExtLink URI="https://doi.org/10.15138/9N0H-ZH07"/></relPubl><relPubl><citation><titlStmt><titl>Baumert, J., Heckelei, T., &amp; Storm, H. (2025). A dataset of yearly probabilistic crop type maps for the EU from 1990 to 2018. Data in Brief, 60, 111472</titl></titlStmt><biblCit>Baumert, J., Heckelei, T., &amp; Storm, H. (2025). A dataset of yearly probabilistic crop type maps for the EU from 1990 to 2018. Data in Brief, 60, 111472</biblCit></citation><ExtLink URI="https://doi.org/10.1016/j.dib.2025.111472"/></relPubl><relPubl><citation><titlStmt><titl>Beck, Hylke E., Niklaus E. Zimmermann, Tim R. McVicar, Noemi Vergopolan, Alexis Berg, and Eric F. Wood. 2018. ‘Present and Future Köppen-Geiger Climate Classification Maps at 1-Km Resolution’. Scientific Data 5 (1): 180214</titl></titlStmt><biblCit>Beck, Hylke E., Niklaus E. Zimmermann, Tim R. McVicar, Noemi Vergopolan, Alexis Berg, and Eric F. Wood. 2018. ‘Present and Future Köppen-Geiger Climate Classification Maps at 1-Km Resolution’. Scientific Data 5 (1): 180214</biblCit></citation><ExtLink URI="https://doi.org/10.1038/sdata.2018.214"/></relPubl><relPubl><citation><titlStmt><titl>Poggio, Laura, Luis M. de Sousa, Niels H. Batjes, et al. 2021. ‘SoilGrids 2.0: Producing Soil Information for the Globe with Quantified Spatial Uncertainty’. SOIL 7 (1): 217–40.</titl></titlStmt><biblCit>Poggio, Laura, Luis M. de Sousa, Niels H. Batjes, et al. 2021. ‘SoilGrids 2.0: Producing Soil Information for the Globe with Quantified Spatial Uncertainty’. SOIL 7 (1): 217–40.</biblCit></citation><ExtLink URI="https://doi.org/10.5194/soil-7-217-2021"/></relPubl><relPubl><citation><titlStmt><titl>Hersbach, H., B. Bell, P. Berrisford, et al. 2023. ‘ERA5 Hourly Data on Single Levels from 1940 to Present.’ Copernicus Climate Change Service (C3S) Climate Data Store (CDS).</titl></titlStmt><biblCit>Hersbach, H., B. Bell, P. Berrisford, et al. 2023. ‘ERA5 Hourly Data on Single Levels from 1940 to Present.’ Copernicus Climate Change Service (C3S) Climate Data Store (CDS).</biblCit></citation><ExtLink URI="https://doi.org/10.24381/cds.adbb2d47"/></relPubl></othrStdyMat></stdyDscr><otherMat ID="f15474" URI="https://bonndata.uni-bonn.de/catalog/downloads/15474/ReadMe.txt" level="datafile"><labl>ReadMe.txt</labl><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">text/plain</notes></otherMat><otherMat ID="f15477" URI="https://bonndata.uni-bonn.de/catalog/downloads/15477/variables.xlsx" level="datafile"><labl>variables.xlsx</labl><txt>Variable and unit description</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/vnd.openxmlformats-officedocument.spreadsheetml.sheet</notes></otherMat><otherMat ID="f15475" URI="https://bonndata.uni-bonn.de/catalog/downloads/15475/winter_wheat_simulation_outputs_europe_dickkopf_1991-2020_v1.0.csv.gz" level="datafile"><labl>winter_wheat_simulation_outputs_europe_dickkopf_1991-2020_v1.0.csv.gz</labl><txt>Simulation results of the historic winter wheat cultivar S. Dickkopf (released 1895)</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/x-gzip</notes></otherMat><otherMat ID="f15476" URI="https://bonndata.uni-bonn.de/catalog/downloads/15476/winter_wheat_simulation_outputs_europe_tommi_1991-2020_v1.0.csv.gz" level="datafile"><labl>winter_wheat_simulation_outputs_europe_tommi_1991-2020_v1.0.csv.gz</labl><txt>Simulation results of the modern winter wheat cultivar Tommi (released 2002)</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/x-gzip</notes></otherMat><otherMat ID="f15481" URI="https://bonndata.uni-bonn.de/catalog/downloads/15481/Beck_KG_V1_present_0p0083.tif" level="datafile"><labl>Beck_KG_V1_present_0p0083.tif</labl><txt>Köppen-Geiger climate zones, according to Beck et al. 2018: https://doi.org/10.1038/sdata.2018.214</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">image/tiff</notes></otherMat><otherMat ID="f15478" URI="https://bonndata.uni-bonn.de/catalog/downloads/15478/wheat_cropmask_europe_v1.0.tif" level="datafile"><labl>wheat_cropmask_europe_v1.0.tif</labl><txt>winter wheat crop map for the domain, which was generated using the data by Baumert et al. 2025:  https://doi.org/10.5281/zenodo.14409497</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">image/tiff</notes></otherMat><otherMat ID="f15479" URI="https://bonndata.uni-bonn.de/catalog/downloads/15479/winter_wheat_simulation_inputs_europe_seasonal_weather_1990-2020_v1.0.csv.gz" level="datafile"><labl>winter_wheat_simulation_inputs_europe_seasonal_weather_1990-2020_v1.0.csv.gz</labl><txt>Seasonal weather variables from Era5 reanalysis: https://doi.org/10.24381/cds.adbb2d47</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/x-gzip</notes></otherMat><otherMat ID="f15480" URI="https://bonndata.uni-bonn.de/catalog/downloads/15480/winter_wheat_simulation_inputs_europe_soil_profile_mean_v1.0.csv.gz" level="datafile"><labl>winter_wheat_simulation_inputs_europe_soil_profile_mean_v1.0.csv.gz</labl><txt>Soil profile mean variables from the SoilGrids2.0 dataset: https://doi.org/10.5194/soil-7-217-2021</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/x-gzip</notes></otherMat><otherMat ID="f15482" URI="https://bonndata.uni-bonn.de/catalog/downloads/15482/winter_wheat_simulation_inputs_europe_yearly_weather_1990-2020_v1.0.csv.gz" level="datafile"><labl>winter_wheat_simulation_inputs_europe_yearly_weather_1990-2020_v1.0.csv.gz</labl><txt>Yearly weather variables from Era5 reanalysis: https://doi.org/10.24381/cds.adbb2d47</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/x-gzip</notes></otherMat><otherMat ID="f15485" URI="https://bonndata.uni-bonn.de/catalog/downloads/15485/R_script_visualizations_figure_4_7_S2_S4.R" level="datafile"><labl>R_script_visualizations_figure_4_7_S2_S4.R</labl><txt>R script to create the figures 4,7 and S2, S4</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">type/x-r-syntax</notes></otherMat><otherMat ID="f15486" URI="https://bonndata.uni-bonn.de/catalog/downloads/15486/R_script_visualizations_figure_5_S11.R" level="datafile"><labl>R_script_visualizations_figure_5_S11.R</labl><txt>R script to create the figures 5 and S11</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">type/x-r-syntax</notes></otherMat><otherMat ID="f15484" URI="https://bonndata.uni-bonn.de/catalog/downloads/15484/R_script_visualizations_figure_6_S3.R" level="datafile"><labl>R_script_visualizations_figure_6_S3.R</labl><txt>R script to create the figures 6 and S3</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">type/x-r-syntax</notes></otherMat><otherMat ID="f15487" URI="https://bonndata.uni-bonn.de/catalog/downloads/15487/R_script_visualizations_figure_8_S5.R" level="datafile"><labl>R_script_visualizations_figure_8_S5.R</labl><txt>R script to create the figures 8 and S5</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">type/x-r-syntax</notes></otherMat><otherMat ID="f15483" URI="https://bonndata.uni-bonn.de/catalog/downloads/15483/R_script_visualizations_figure_S2_S7_S8.R" level="datafile"><labl>R_script_visualizations_figure_S2_S7_S8.R</labl><txt>R script to create the figures S2, S7 and S8</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">type/x-r-syntax</notes></otherMat></codeBook>