1. Lecturer in Physical Geography, Polar and Alpine Research Centre, Dept. of Geography, Loughborough Univ., Loughborough, Leicestershire, LE11 3TU, UK (corresponding author).
2. Assistant Professor, Université Caen Basse Normandie, Geophen—CNRS, UMR 6554, France.
3. Reader in River Science, Centre for Hydrological and Ecosystem Science, Dept. of Geography, Loughborough Univ., Loughborough, Leicestershire, LE11 3TU, UK.
4. Research Director, National Center of Scientific Research—CNRS, Univ. of Lyon, UMR 5600, Site ENS-lsh, Lyon, France.