Mette Bendixen, Institute of Arctic and Alpine Research, University of Colorado, Boulder, Boulder, CO, United States, Jim Best, Univ. Illinois at Urbana Champaign, Geology, Geography & GIS, Mechanical Science and Engineering and Ven Te Chow Hydrosystems Laboratory, Champaign, IL, United States, Christopher R Hackney, University of Hull, Energy and Environment Institute, Hull, HU6, United Kingdom and Iversen Lars Lonsmann, Arizona State University, School of Life Sciences, Tempe, AZ, United States