In-situ GPS records of surface mass balance, firn compaction rates, and ice-shelf basal melt rates for Pine Island Glacier, Antarctica
David E Shean1, Knut A Christianson2, Kristine M Larson3, Stefan Ligtenberg4, Ian R Joughin5, Benjamin Eaton Smith5 and C Max Stevens2, (1)University of Washington, Civil and Environmental Engineering, Seattle, United States, (2)University of Washington, Seattle, WA, United States, (3)University of Colorado at Boulder, Aerospace Engineering Sciences, Boulder, United States, (4)University Utrecht / IMAU, Utrecht, Netherlands, (5)Applied Physics Laboratory University of Washington, Seattle, WA, United States