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

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 m...

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Bibliographic Details
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
Antarc*
Antarctic
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
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Summary: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.

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