Stephanie Pfirman, Arizona State University, Tempe, AZ, United States, G Garrett Campbell, University of Colorado at Boulder, Boulder, CO, United States, Bruno Tremblay, McGill University, Montreal, QC, Canada, Robert Newton, Lamont -Doherty Earth Observatory, Palisades, NY, United States and Walter Meier, National Snow and Ice Data Center, CIRES, University of Colorado Boulder, Boulder, CO, United States