- Measures the grounding line retreat of glaciers draining the Amundsen Sea sector of West Antarctica using Earth Remote Sensing (ERS-1/2) satellite radar interferometry from 1992 to 2011
- Finds that
- The Pine Island Glacier retreated 31 km at its center, with most retreat in 2005–2009 when the glacier ungrounded from its ice plain
- The Thwaites Glacier retreated 14 km along its fast flow core and 1 to 9 km along the sides
- The Haynes Glacier retreated 10 km along its flanks
- The FniSmith/Kohler glaciers retreated the most, 35 km along its ice plain, and its ice shelf pinning points are vanishing
- States that these rapid retreats proceed along regions of retrograde bed elevation mapped at a high spatial resolution using a mass conservation technique that removes residual ambiguities from prior mappings
- Finds no major bed obstacle upstream of the 2011 grounding line positions that would prevent the glaciers from further retreat and draw down the entire basin
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