Harry Vereecken received a Ph.D. in agricultural sciences from the Katholieke Universiteit Leuven, Belgium (1988). He obtained his habilitation in hydrogeology 1997 at Bonn University, Germany. Since 2000 he is full professor at Bonn University, Faculty of Agriculture, and director of the Agrosphere Institute, Forschungszentrum Jülich GmbH. He is member of the Nordrhein-Westfälische Akademie der Wissenschaften, scientific director of TERENO, a network of environmental observatories in Germany, chair of the International Soil Modeling Consortium (ISMC) and honorary professor at Tianjin University, China. He served as associate editor, co-editor and Editor-in-Chief of Vadose Zone Journal. His research interests include hydrology, hydrogeophysics, and soil science.