1. Civil Engineer, formerly, Versuchsanstalt für Wasserbau, Hydrologie und Glaziologie VAW, Swiss Federal Institute of Technology (ETH), Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH-Zentrum, CH-8092 Zurich, Switzerland.
2. Professor, VAW, Swiss Federal Institute of Technology (ETH), Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH-Zentrum, CH-8092 Zurich, Switzerland.
3. Professor, Director VAW, Swiss Federal Institute of Technology (ETH), Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH-Zentrum, CH-8092 Zurich, Switzerland.