1. Department of Hydrology; Geological Survey of Denmark and Greenland (GEUS); Øster Voldgade 10 DK-1350 København K Denmark.
2. Currently at COWI A/S; Parallelvej 2 DK-2800 Kongens Lyngby Denmark
3. Department of Geosciences and Natural Resource Management; University of Copenhagen; Øster Voldgade 10 DK-1350 København K Denmark.