10.60507/FK2/H4W6DTRoque, Jane LeonorJane LeonorRoque0009-0004-2419-6033University of BonnArianna ValmassoiAriannaValmassoiDeutscher Wetterdienstbonndata2026Earth and Environmental SciencesRoque Mamani, JaneJaneRoque MamaniUniversity of Bonn2025-11-042026-06-222026-07-27ICON model 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BY 4.0Studies on irrigation within Earth system models have demonstrated the irrigation effects on various variables. While some regional simulations in Europe have focused on short-term impacts during a single growing season, comprehensive long-term simulations across the entire continent are lacking. Our study aims to quantify the long-term impact of irrigation on surface and atmospheric variables over the EURO-CORDEX domain using convection-permitting ICON simulations that cover a period of 12 years. The irrigation parameterization is based on the CHANNEL scheme in WRF (Valmassoi et al. 2020). The daily irrigation volume matches the readily available water (RAW), which is the amount of total available water (TAW) a crop can absorb from the root zone without stress. The irrigation event starts on May 1st of each year at 5 UTC for 5 hours, with a frequency of every 12 days. The results show that the irrigation impact varies by region and year, highlighting the importance of land-atmosphere interactions in the irrigation impact. For example, the cold and wet summer of 2017 in southern Europe reduced irrigation cooling effects in the Alps, while the 2018 heat wave in Central Europe enhanced the influence of irrigation on surface variables. The files found in the current dataset are 3 hourly outputs from the ICOsahedral Nonhydrostatic model (ICON) for the control and irrigation experiments. The ICON model was developed by the German Weather Service (DWD) and the Max Planck Institute for Meteorology (MPI-M) and it is currently used operationally at DWD for weather forecasting.ICOsahedral Nonhydrostatic model (ICON), icon-2.6.6-nwp3c