1. Chair of Urban Water Systems Engineering, Technical University of Munich, 85748 Garching, Germany
2. Chair of Water Supply Engineering, Technische Universität Dresden, 01062 Dresden, Germany
3. Wahnbachtalsperrenverband, 53721 Siegburg, Germany
4. Norwegian Institute for Water Research (NIVA), 0349 Oslo, Norway
5. Norwegian University of Science and Technology (NTNU), Institute of Civil and Environmental Engineering, 7491 Trondheim, Norway