Articles | Volume 15, issue 2
The Cryosphere, 15, 571–593, 2021
The Cryosphere, 15, 571–593, 2021

Research article 08 Feb 2021

Research article | 08 Feb 2021

Future surface mass balance and surface melt in the Amundsen sector of the West Antarctic Ice Sheet

Marion Donat-Magnin et al.

Data sets

Amundsen Sea MAR simulations forced by ERAinterim Marion Donat-Magnin, Nicolas Jourdain, Cécile Agosta, Hubert Gallée, Charles Amory, Christoph Kittel and Xavier Fettweis

Amundsen Sea future MAR simulations forced by the CMIP5 multi-model mean Marion Donat-Magnin, Nicolas C. Jourdain, Christoph Kittel, Cécile Agosta, Charles Amory, Hubert Gallée, Gerhard Krinner, and Mondher Chekki

Short summary
We simulate the West Antarctic climate in 2100 under increasing greenhouse gases. Future accumulation over the ice sheet increases, which reduces sea level changing rate. Surface ice-shelf melt rates increase until 2100. Some ice shelves experience a lot of liquid water at their surface, which indicates potential ice-shelf collapse. In contrast, no liquid water is found over other ice shelves due to huge amounts of snowfall that bury liquid water, favouring refreezing and ice-shelf stability.