GPS-derived estimates of surface mass balance and ocean-induced basal melt for Pine Island Glacier ice shelf, Antarctica

• Published in: The Cryosphere
• Main Authors: D. E. Shean, K. Christianson, K. M. Larson, S. R. M. Ligtenberg, I. R. Joughin, B. E. Smith, C. M. Stevens, M. Bushuk, D. M. Holland
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2017
• Subjects: Environmental sciences; GE1-350; Geology; QE1-996.5; Pine Island Glacier; Island Bay; Pine Island Bay; Antarc*; Antarctica; Ice Sheet; Ice Shelf; Pine Island; The Cryosphere
• Online Access: https://doi.org/10.5194/tc-11-2655-2017; https://doaj.org/article/798cfbee8ed9445dbeffd445c4dfc1ac

In the last 2 decades, Pine Island Glacier (PIG) experienced marked speedup, thinning, and grounding-line retreat, likely due to marine ice-sheet instability and ice-shelf basal melt. To better understand these processes, we combined 2008–2010 and 2012–2014 GPS records with dynamic firn model output...