Daniel H Shugar, University of Calgary, Dept of Geoscience, Calgary, AB, Canada, Aaron Burr, University of Washington Tacoma, Tacoma, WA, United States, Umesh K Haritashya, University of Dayton, Dayton, OH, United States, Jeffrey S Kargel, Planetary Science Institute Tucson, Tucson, AZ, United States, Scott Watson, University of Arizona, Tucson, AZ, United States, Maureen C Kennedy, University of Washington Tacoma, School of Interdisciplinary Arts and Sciences, Tacoma, WA, United States, Alexandre Bevington, British Columbia Ministry of Forests, Lands, Natural Resource Operations and Rural Development, Prince George, BC, Canada, Richard A. Betts, Met Office Hadley Centre, Exeter, United Kingdom, Stephan Harrison, University of Exeter, Exeter, United Kingdom and Katherine Strattman, University of Alabama in Huntsville, Huntsville, AL, United States