Using surface velocities to calculate ice thickness and bed topography: a case study at Columbia Glacier, Alaska, USA

Robert McNabb, Regine Hock, Shad O’Neel, Lowell A Rasmussen, Yushin Ahn, Matthias Braun, Howard Conway, Sam Herreid, Ian Joughin, W Tad Pfeffer, Ben Smith, Martin Truffer