Nicole Jeffery, Los Alamos National Laboratory, Los Alamos, NM, United States, Elizabeth Clare Hunke, Los Alamos National Laboratory, Los Alamos, United States, Andrew Roberts, Lost Alamos National Laboratory, Los Alamos, United States, Melinda Webster, University of Washington, Seattle, United States, Connor Nelson, University College London, London, United Kingdom and Julienne Christine Stroeve, National Snow and Ice Data Center, CIRES, University of Colorado Boulder, Boulder, United States