Graham Hill^1,2, Philip E Wannamaker³, Virginia Maris³, John A Stodt⁴, Michal A Kordy⁵, Paul Bedrosian⁶, Martyn Jonathan Unsworth⁷, Erin Wallin⁸, Philip R Kyle⁹, Yasuo Ogawa¹⁰ and Danny F Uhlmann¹¹, (1)University of Canterbury, Gateway Antarctica, Christchurch, New Zealand, (2)Institute of Geophysics, Czech Academy of Science, Prague, Czech Republic, (3)University of Utah, Energy & Geoscience Institute, Salt Lake City, UT, United States, (4)Numeric Resources, Salt Lake City, UT, United States, (5)University of Utah, Salt Lake City, UT, United States, (6)USGS, Geology, Geophysics, and Geochemistry Science Center, Denver, CO, United States, (7)University of Alberta, Edmonton, AB, Canada, (8)US Army Corps of Engineers, Huntsville, AL, United States, (9)New Mexico Institute of Mining and Technology, Socorro, NM, United States, (10)Tokyo Institute of Technology, Tokyo, Japan, (11)First Light Mountain Guides, Chamonix, France