Cryos, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne, GRAO 402 – Station 2, 1015 Lausanne, Switzerland

WSL Institute for Snow and Avalanche Research SLF, Flüelastrasse 35, 7260 Davos, Switzerland

Institute of Geography, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria

Centre for Hydrology, University of Saskatchewan, 117 Science Place, Saskatoon, Saskatchewan, S7N 5C8, Canada

Antarctic Research Centre, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand

Institute of Environmental Engineering, ETH Zurich, 8093 Zurich, Switzerland

Institut Geològic de Catalunya, C/Balmes 209–211, 08006 Barcelona, Spain

Institut Geològic de Catalunya, C/Balmes 209–211, 08006 Barcelona, Spain

Institute of Geography, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria

Department of Geography, University of Lethbridge, 4401 University Drive West, Lethbridge, Alberta, T1K 3M4, Canada

Institute of Environmental Engineering, ETH Zurich, 8093 Zurich, Switzerland

Cryos, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne, GRAO 402 – Station 2, 1015 Lausanne, Switzerland

WSL Institute for Snow and Avalanche Research SLF, Flüelastrasse 35, 7260 Davos, Switzerland