Modélisation du bilan de masse en surface du Svalbard avec le modèle régional MAR entre 1958 et 2010
It is well known that high latitude zones are very sensitive to climate change. As a result of global warming, ice sheet melting has increased which in turn has an influence on climate through modifications of the thermohaline circulation, feedback of ice albedo, sea level rise,. . . Svalbard is an ar...
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ftorbi:oai:orbi.ulg.ac.be:2268/123994 2024-04-21T08:03:53+00:00 Modélisation du bilan de masse en surface du Svalbard avec le modèle régional MAR entre 1958 et 2010 Lang, Charlotte 2012-03-07 14 https://orbi.uliege.be/handle/2268/123994 https://orbi.uliege.be/bitstream/2268/123994/1/charlotte_lang_SMB_Svalbard.pdf fr fre https://orbi.uliege.be/handle/2268/123994 info:hdl:2268/123994 https://orbi.uliege.be/bitstream/2268/123994/1/charlotte_lang_SMB_Svalbard.pdf open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Société géographique de Liège, 7 mars 2012 Svalbard Climate Modelling Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique conference paper not in proceedings http://purl.org/coar/resource_type/c_18cp info:eu-repo/semantics/conferencePaper 2012 ftorbi 2024-03-27T14:44:30Z It is well known that high latitude zones are very sensitive to climate change. As a result of global warming, ice sheet melting has increased which in turn has an influence on climate through modifications of the thermohaline circulation, feedback of ice albedo, sea level rise,. . . Svalbard is an archipelago located between 74 and 81◦ lat N and 60 percent of its area (62 248 km2 ) is covered with glaciers and ice sheets. The impact of global warming on the Svalbard cryosphere can be estimated with climate models. However, we need to use regional climate models as they offer the possibility of a higher resolution than general circulation models. We have carried out a simulation of the Svalbard climate over the last 50 years (from 1958 to 2010) with the regional climate MAR model (tuned for the Greenland ice sheet) at a 10 km resolution forced with the ECMWF reanalysis. As validation, the modeled climate has been compared to near surface measurements at several weather stations through the archipelago. The results show a large interannual variability of the surface mass balance over Svalbard along with an increasing melting. The increase in temperature is responsible for the melting rate and the interannual variability is due to the variations of the mean summer temperature. Conference Object Greenland Ice Sheet Svalbard University of Liège: ORBi (Open Repository and Bibliography) |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
French |
topic |
Svalbard Climate Modelling Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Svalbard Climate Modelling Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Lang, Charlotte Modélisation du bilan de masse en surface du Svalbard avec le modèle régional MAR entre 1958 et 2010 |
topic_facet |
Svalbard Climate Modelling Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
It is well known that high latitude zones are very sensitive to climate change. As a result of global warming, ice sheet melting has increased which in turn has an influence on climate through modifications of the thermohaline circulation, feedback of ice albedo, sea level rise,. . . Svalbard is an archipelago located between 74 and 81◦ lat N and 60 percent of its area (62 248 km2 ) is covered with glaciers and ice sheets. The impact of global warming on the Svalbard cryosphere can be estimated with climate models. However, we need to use regional climate models as they offer the possibility of a higher resolution than general circulation models. We have carried out a simulation of the Svalbard climate over the last 50 years (from 1958 to 2010) with the regional climate MAR model (tuned for the Greenland ice sheet) at a 10 km resolution forced with the ECMWF reanalysis. As validation, the modeled climate has been compared to near surface measurements at several weather stations through the archipelago. The results show a large interannual variability of the surface mass balance over Svalbard along with an increasing melting. The increase in temperature is responsible for the melting rate and the interannual variability is due to the variations of the mean summer temperature. |
format |
Conference Object |
author |
Lang, Charlotte |
author_facet |
Lang, Charlotte |
author_sort |
Lang, Charlotte |
title |
Modélisation du bilan de masse en surface du Svalbard avec le modèle régional MAR entre 1958 et 2010 |
title_short |
Modélisation du bilan de masse en surface du Svalbard avec le modèle régional MAR entre 1958 et 2010 |
title_full |
Modélisation du bilan de masse en surface du Svalbard avec le modèle régional MAR entre 1958 et 2010 |
title_fullStr |
Modélisation du bilan de masse en surface du Svalbard avec le modèle régional MAR entre 1958 et 2010 |
title_full_unstemmed |
Modélisation du bilan de masse en surface du Svalbard avec le modèle régional MAR entre 1958 et 2010 |
title_sort |
modélisation du bilan de masse en surface du svalbard avec le modèle régional mar entre 1958 et 2010 |
publishDate |
2012 |
url |
https://orbi.uliege.be/handle/2268/123994 https://orbi.uliege.be/bitstream/2268/123994/1/charlotte_lang_SMB_Svalbard.pdf |
genre |
Greenland Ice Sheet Svalbard |
genre_facet |
Greenland Ice Sheet Svalbard |
op_source |
Société géographique de Liège, 7 mars 2012 |
op_relation |
https://orbi.uliege.be/handle/2268/123994 info:hdl:2268/123994 https://orbi.uliege.be/bitstream/2268/123994/1/charlotte_lang_SMB_Svalbard.pdf |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
_version_ |
1796943571100631040 |