Future surface mass balance contribution of the Antarctic ice-sheet to sea level rise

• Main Authors: Agosta, Cécile, Fettweis, Xavier, Krinner, Gerhard, Gallée, Hubert, Genthon, Christophe
• Format: Lecture
• Language: English
• Published: 2012
• Subjects: Physical; chemical; mathematical & earth Sciences; Earth sciences & physical geography; Physique; chimie; mathématiques & sciences de la terre; Sciences de la terre & géographie physique; Antarctic; The Antarctic; Antarc*; Antarctica; Ice Sheet
• Online Access: https://orbi.uliege.be/handle/2268/143969; https://orbi.uliege.be/bitstream/2268/143969/1/Aachen_2012-12-04_Agosta.pdf

Most of the IPCC-AR4 global circulation models predict an increase of the Antarctic Surface Mass Balance (SMB) during the 21st century that would mitigate global sea level rise. High-resolution modeling is necessary to adequately capture the Antarctic SMB, that is why we present here a downscaling method leading to 15-km SMB resolution for century time-scales over Antarctica. Our first results show that a higher resolution induce at the same time more run-off but a significantly higher mitigation of sea level rise for the next centuries.