West Antarctic Ice Sheet retreat driven by Holocene warm water incursions.

Claus-Dieter Hillenbrand, James A Smith, David Hodell, Mervyn Greaves, Christopher R Poole, Sev Kender, Mark Williams, Thorbjørn Joest Andersen, Patrycja E Jernas, Henry Elderfield, Johann P Klages, Stephen J Roberts, Karsten Gohl, Robert D Larter & Gerhard Kuhn
Glaciological and oceanographic observations coupled with numerical models show that warm Circumpolar Deep Water (CDW) incursions onto the West Antarctic continental shelf cause melting of the undersides of floating ice shelves. Because these ice shelves buttress glaciers feeding into them, their ocean-induced thinning is driving Antarctic ice-sheet retreat today. Here we present a multi-proxy data based reconstruction of variability in CDW inflow to the Amundsen Sea sector, the most vulnerable part of the West Antarctic...

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