Sensitivity of Greenland Ice Sheet surface mass balance to perturbations in sea surface temperature and sea ice cover: a study with the regional climate model MAR
peer reviewed During recent summers (2007–2012), several surface melt records were broken over the Greenland Ice Sheet (GrIS). The extreme summer melt resulted in part from a persistent negative phase of the North Atlantic Oscillation (NAO), favoring warmer atmospheric conditions than normal over th...
Published in: | The Cryosphere |
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Copernicus
2014
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Online Access: | https://orbi.uliege.be/handle/2268/163934 https://orbi.uliege.be/bitstream/2268/163934/1/tc-8-1871-2014.pdf https://doi.org/10.5194/tc-8-1871-2014 |
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ftorbi:oai:orbi.ulg.ac.be:2268/163934 2024-04-21T08:03:23+00:00 Sensitivity of Greenland Ice Sheet surface mass balance to perturbations in sea surface temperature and sea ice cover: a study with the regional climate model MAR Noël, Brice Fettweis, Xavier van de Berg, W.J. van den Broeke, M.R. Erpicum, Michel SPHERES - ULiège 2014-10-20 https://orbi.uliege.be/handle/2268/163934 https://orbi.uliege.be/bitstream/2268/163934/1/tc-8-1871-2014.pdf https://doi.org/10.5194/tc-8-1871-2014 en eng Copernicus http://www.the-cryosphere.net/8/1871/2014/tc-8-1871-2014.html urn:issn:1994-0416 urn:issn:1994-0424 https://orbi.uliege.be/handle/2268/163934 info:hdl:2268/163934 https://orbi.uliege.be/bitstream/2268/163934/1/tc-8-1871-2014.pdf doi:10.5194/tc-8-1871-2014 scopus-id:2-s2.0-84908100954 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess The Cryosphere, 8, 1871-1883 (2014-10-20) Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2014 ftorbi https://doi.org/10.5194/tc-8-1871-2014 2024-03-27T14:58:15Z peer reviewed During recent summers (2007–2012), several surface melt records were broken over the Greenland Ice Sheet (GrIS). The extreme summer melt resulted in part from a persistent negative phase of the North Atlantic Oscillation (NAO), favoring warmer atmospheric conditions than normal over the GrIS. Simultaneously, large anomalies in sea ice cover (SIC) and sea surface temperature (SST) were observed in the North Atlantic, suggesting a possible connection. To assess the direct impact of 2007–2012 SIC and SST anomalies on GrIS surface mass balance (SMB), a set of sensitivity experiments was carried out with the regional climate model MAR forced by ERA-Interim. These simulations suggest that perturbations in SST and SIC in the seas surrounding Greenland do not considerably impact GrIS SMB, as a result of the katabatic wind blocking effect. These offshore-directed winds prevent oceanic near-surface air, influenced by SIC and SST anomalies, from penetrating far inland. Therefore, the ice sheet SMB response is restricted to coastal regions, where katabatic winds cease. A topic for further investigation is how anomalies in SIC and SST might have indirectly affected the surface melt by changing the general circulation in the North Atlantic region, hence favoring more frequent warm air advection towards the GrIS. Article in Journal/Newspaper Greenland Ice Sheet North Atlantic North Atlantic oscillation Sea ice The Cryosphere University of Liège: ORBi (Open Repository and Bibliography) The Cryosphere 8 5 1871 1883 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Noël, Brice Fettweis, Xavier van de Berg, W.J. van den Broeke, M.R. Erpicum, Michel Sensitivity of Greenland Ice Sheet surface mass balance to perturbations in sea surface temperature and sea ice cover: a study with the regional climate model MAR |
topic_facet |
Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed During recent summers (2007–2012), several surface melt records were broken over the Greenland Ice Sheet (GrIS). The extreme summer melt resulted in part from a persistent negative phase of the North Atlantic Oscillation (NAO), favoring warmer atmospheric conditions than normal over the GrIS. Simultaneously, large anomalies in sea ice cover (SIC) and sea surface temperature (SST) were observed in the North Atlantic, suggesting a possible connection. To assess the direct impact of 2007–2012 SIC and SST anomalies on GrIS surface mass balance (SMB), a set of sensitivity experiments was carried out with the regional climate model MAR forced by ERA-Interim. These simulations suggest that perturbations in SST and SIC in the seas surrounding Greenland do not considerably impact GrIS SMB, as a result of the katabatic wind blocking effect. These offshore-directed winds prevent oceanic near-surface air, influenced by SIC and SST anomalies, from penetrating far inland. Therefore, the ice sheet SMB response is restricted to coastal regions, where katabatic winds cease. A topic for further investigation is how anomalies in SIC and SST might have indirectly affected the surface melt by changing the general circulation in the North Atlantic region, hence favoring more frequent warm air advection towards the GrIS. |
author2 |
SPHERES - ULiège |
format |
Article in Journal/Newspaper |
author |
Noël, Brice Fettweis, Xavier van de Berg, W.J. van den Broeke, M.R. Erpicum, Michel |
author_facet |
Noël, Brice Fettweis, Xavier van de Berg, W.J. van den Broeke, M.R. Erpicum, Michel |
author_sort |
Noël, Brice |
title |
Sensitivity of Greenland Ice Sheet surface mass balance to perturbations in sea surface temperature and sea ice cover: a study with the regional climate model MAR |
title_short |
Sensitivity of Greenland Ice Sheet surface mass balance to perturbations in sea surface temperature and sea ice cover: a study with the regional climate model MAR |
title_full |
Sensitivity of Greenland Ice Sheet surface mass balance to perturbations in sea surface temperature and sea ice cover: a study with the regional climate model MAR |
title_fullStr |
Sensitivity of Greenland Ice Sheet surface mass balance to perturbations in sea surface temperature and sea ice cover: a study with the regional climate model MAR |
title_full_unstemmed |
Sensitivity of Greenland Ice Sheet surface mass balance to perturbations in sea surface temperature and sea ice cover: a study with the regional climate model MAR |
title_sort |
sensitivity of greenland ice sheet surface mass balance to perturbations in sea surface temperature and sea ice cover: a study with the regional climate model mar |
publisher |
Copernicus |
publishDate |
2014 |
url |
https://orbi.uliege.be/handle/2268/163934 https://orbi.uliege.be/bitstream/2268/163934/1/tc-8-1871-2014.pdf https://doi.org/10.5194/tc-8-1871-2014 |
genre |
Greenland Ice Sheet North Atlantic North Atlantic oscillation Sea ice The Cryosphere |
genre_facet |
Greenland Ice Sheet North Atlantic North Atlantic oscillation Sea ice The Cryosphere |
op_source |
The Cryosphere, 8, 1871-1883 (2014-10-20) |
op_relation |
http://www.the-cryosphere.net/8/1871/2014/tc-8-1871-2014.html urn:issn:1994-0416 urn:issn:1994-0424 https://orbi.uliege.be/handle/2268/163934 info:hdl:2268/163934 https://orbi.uliege.be/bitstream/2268/163934/1/tc-8-1871-2014.pdf doi:10.5194/tc-8-1871-2014 scopus-id:2-s2.0-84908100954 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-8-1871-2014 |
container_title |
The Cryosphere |
container_volume |
8 |
container_issue |
5 |
container_start_page |
1871 |
op_container_end_page |
1883 |
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1796943248537681920 |