1. Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH Zürich, Hönggerbergring 26, 8093 Zürich, Switzerland
2. Department of Geoscience and Engineering, Delft University of Technology, Stevinweg 1, 2628 CN Delft, The Netherlands
3. Royal Netherlands Meteorological Institute, Utrechtseweg 297, 3731 GA De Bilt, The Netherlands
4. Institute of Geophysics, Center for Earth System Research and Sustainability (CEN), Universität Hamburg, 20146 Hamburg, Germany