Jeffrey Bury,¹ Adam French,¹ Jeffrey McKenzie,² Bryan G. Mark<sup>3

1</sup>Department of Environmental Studies, University of California at Santa Cruz, Room 428, Interdisciplinary Sciences Building, 1156 High Street, Santa Cruz, California 95064, USA. (J.B.); (A.F.) jbury@ucsc.edu akfrench@ucsc.edu
²Earth and Planetary Sciences, McGill University, 3450 University Street, Montreal, QC, H3A 2A7, Canada. mckenzie@eps.mcgill.ca
³Department of Geography and Byrd Polar Research Center, The Ohio State University, 1036 Derby Hall, 154 N Oval Mall, Columbus, OH 43210, USA. mark.9@osu.edu