1. Institute of Environmental Engineering, ETH Zurich; Zurich Switzerland
2. Hydrology Group, Pacific Northwest National Laboratory; Seattle Washington USA
3. Dipartimento di Elettronica, Informazione e Bioingegneria; Politecnico di Milano; Milano Italy
4. Department of Civil Engineering; University of Bristol; Bristol UK
5. Department of Civil and Environmental Engineering; University of Washington; Seattle Washington USA
6. Department of Geography; UCLA; Los Angeles California USA