Jens Christian Refsgaard (born 1951) is Professor (emeritus since 2019) in water resources at the Geological Survey of Denmark and Greenland (GEUS). Former employments include associate professor at the Technical University of Denmark and chief hydrologist/head of research at Danish Hydraulic Institute (DHI). Fellow, Danish Academy of Technical Sciences (2005-date). Member of Scientitic and Technological Board, EU Joint Programme Initiative Water (2011-2018). Supervisor for 20 PhD students and external examiner for 27 PhD theses at universities in Denmark, Norway, Sweden, Belgium, Finland, The Netherlands, Australia and India. Associate Editor, Hydrological Processes. Evaluator of research programmes at several universities and research institutes. Co-ordinator for several major EU funded and Danish funded research projects. Co-ordinator/team leader of several multi-disciplinary international research and capacity building projects in Eastern Europe, Asia and Africa – working experience from more than 20 countries. Published more than 150 journal papers with more than 6500 ISI citation (h index 41 in ISI Web of Science) and 1500 citations (h-indes 54) on Google Scholar. Major research interests: distributed catchment modeling including groundwater/surface water interaction, assessment of climate change impacts on hydrology, impacts of land use and agricultural pracice on hydrology, good modelling practie and uncertainty assessment in the modelling process.