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Influence de la résolution spatiale sur la modélisation du bilan de masse en surface de la calotte glaciaire du Groenland
Franco, Bruno; Fettweis, Xavier; Erpicum, Michel
2011In Fazzini, Massimiliano; Beltrando, Gérard (Eds.) Actes du XXIVe colloque annuel de l’Association Internationale de Climatologie : Climat Montagnard et Risques
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Keywords :
bilan de masse en surface; résolution spatiale; Groenland
Abstract :
[en] By using the regional climate model MAR (Modèle Atmosphérique Régional), we have modelled the Greenland Ice Sheet (GrIS) Surface Mass Balance (SMB) at 20, 25, 30, 40 and 50km resolution to assess the impact of the spatial resolution. As part of the ICE2SEA project, the 25km-resolution SMB outputs of the MAR model are used as forcing fields for ice sheet models, in order to produce projections of the GrIS contribution to sea-level rise over the next 200 years. However, the ice sheet models often run at a higher resolution (typically 5-10km) than the current MAR resolution (25km). Such higher-resolution runs of the MAR model on the same integration domain generate a significant additional computing time and are not doable until now. That is why several enhanced SMB interpolations are tested here in order to reduce biases when interpolating the MAR outputs onto higher resolution, in the framework of the ICE2SEA project.
Research Center/Unit :
Laboratoire de Climatologie et Topoclimatologie
Disciplines :
Earth sciences & physical geography
Author, co-author :
Franco, Bruno ;  Université de Liège - ULiège > Département de géographie > Topoclimatologie
Fettweis, Xavier  ;  Université de Liège - ULiège > Département de géographie > Topoclimatologie
Erpicum, Michel ;  Université de Liège - ULiège > Département de géographie > Topoclimatologie
Language :
French
Title :
Influence de la résolution spatiale sur la modélisation du bilan de masse en surface de la calotte glaciaire du Groenland
Alternative titles :
[en] Impact of the spatial resolution on the Greenland ice sheet surface mass balance modelling
Publication date :
07 September 2011
Event name :
XXIV colloque de l'Association Internationale de Climatologie
Event organizer :
Association Internationale de Climatologie
Event place :
Rovereto, Italy
Event date :
du 6 au 10 septembre 2011
Audience :
International
Main work title :
Actes du XXIVe colloque annuel de l’Association Internationale de Climatologie : Climat Montagnard et Risques
Author, co-author :
Fazzini, Massimiliano
Beltrando, Gérard
Publisher :
Università di Ferrara, Rovereto, Italy
ISBN/EAN :
978-2-907696-17-3
Peer reviewed :
Peer reviewed
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
Available on ORBi :
since 04 October 2011

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