Affiliation: | 1. INSTAAR and Department of Geological Sciences, University of Colorado, Boulder, CO 80309‐0450, USA;2. INSTAAR and ATOC, University of Colorado, Boulder, CO, USA;3. Department of Geography, Durham University, Durham, UK;4. Kent State University, Department of Geology, Kent, OH, USA;5. GEOTOP, Université du Québec à Montréal, Montréal, Québec, Canada;6. Scott Polar Research Institute, University of Cambridge, Cambridge, UK |