PNAS, September 14 Extensive open fractures have developed in the ice shelves of the Pine Island and Thwaites glaciers in the West Antarctic Ice Sheet, potentially priming them for future collapse. No such crevasses existed at the beginning of satellite records in 1997, with rapidly growing crevasse-damaged areas by 2019, accelerating since 2016. These damaged […]
New maps collected under the floating tongue of Thwaites Glacier and further offshore reveal deep (> 1000 m) and wide (> 20,000 m) channels that guide warm ocean water under the ice, accelerating melt that eventually may lead to collapse. Thwaites, part of the West Antarctic Ice Sheet (WAIS) is the size of Great Britain, […]
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