Analysis of the atmospheric circulation simulated by GCMs over Greenland
The variability of the geopotential height at 500 hPa simulated by General Circulation Models (GCMs) over Greenland is evaluated using an atmospheric circulation type classification. The GCM outputs for the current climate (20C3M) are first compared to reanalysis data over 1961-1990. The comparison...
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ftorbi:oai:orbi.ulg.ac.be:2268/75356 2024-04-21T08:03:01+00:00 Analysis of the atmospheric circulation simulated by GCMs over Greenland Analyse de la circulation atmosphérique simulée par les GCM au Groenland Belleflamme, Alexandre Fettweis, Xavier Erpicum, Michel 2010-11-05 13 https://orbi.uliege.be/handle/2268/75356 https://orbi.uliege.be/bitstream/2268/75356/1/a_belleflamme_meteoclim_2010.pdf en eng https://orbi.uliege.be/handle/2268/75356 info:hdl:2268/75356 https://orbi.uliege.be/bitstream/2268/75356/1/a_belleflamme_meteoclim_2010.pdf open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess MeteoClim2010, Brussels, Belgium [BE], 5 November 2010 General Circulation models Greenland Atmospheric circulation Atmospheric circulation type classification COST733 action Modèles de circulation générale Groenland Circulation atmosphérique Classification de types de circulations atmosphériques Action COST733 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 2010 ftorbi 2024-03-27T14:43:24Z The variability of the geopotential height at 500 hPa simulated by General Circulation Models (GCMs) over Greenland is evaluated using an atmospheric circulation type classification. The GCM outputs for the current climate (20C3M) are first compared to reanalysis data over 1961-1990. The comparison shows that most of them simulate well the main circulation types but fail to reproduce their frequencies because of underestimations of circulation variability and biases in the mean geopotential height. GCM-based future projections do not individualise new circulation types but show a general increase of the geopotential height. Based on this approach, the correlation between surface temperature and atmospheric circulation offers a new way for estimating the Greenland ice sheet melt. Conference Object Greenland Groenland Ice Sheet 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 |
English |
topic |
General Circulation models Greenland Atmospheric circulation Atmospheric circulation type classification COST733 action Modèles de circulation générale Groenland Circulation atmosphérique Classification de types de circulations atmosphériques Action COST733 Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
General Circulation models Greenland Atmospheric circulation Atmospheric circulation type classification COST733 action Modèles de circulation générale Groenland Circulation atmosphérique Classification de types de circulations atmosphériques Action COST733 Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Belleflamme, Alexandre Fettweis, Xavier Erpicum, Michel Analysis of the atmospheric circulation simulated by GCMs over Greenland |
topic_facet |
General Circulation models Greenland Atmospheric circulation Atmospheric circulation type classification COST733 action Modèles de circulation générale Groenland Circulation atmosphérique Classification de types de circulations atmosphériques Action COST733 Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
The variability of the geopotential height at 500 hPa simulated by General Circulation Models (GCMs) over Greenland is evaluated using an atmospheric circulation type classification. The GCM outputs for the current climate (20C3M) are first compared to reanalysis data over 1961-1990. The comparison shows that most of them simulate well the main circulation types but fail to reproduce their frequencies because of underestimations of circulation variability and biases in the mean geopotential height. GCM-based future projections do not individualise new circulation types but show a general increase of the geopotential height. Based on this approach, the correlation between surface temperature and atmospheric circulation offers a new way for estimating the Greenland ice sheet melt. |
format |
Conference Object |
author |
Belleflamme, Alexandre Fettweis, Xavier Erpicum, Michel |
author_facet |
Belleflamme, Alexandre Fettweis, Xavier Erpicum, Michel |
author_sort |
Belleflamme, Alexandre |
title |
Analysis of the atmospheric circulation simulated by GCMs over Greenland |
title_short |
Analysis of the atmospheric circulation simulated by GCMs over Greenland |
title_full |
Analysis of the atmospheric circulation simulated by GCMs over Greenland |
title_fullStr |
Analysis of the atmospheric circulation simulated by GCMs over Greenland |
title_full_unstemmed |
Analysis of the atmospheric circulation simulated by GCMs over Greenland |
title_sort |
analysis of the atmospheric circulation simulated by gcms over greenland |
publishDate |
2010 |
url |
https://orbi.uliege.be/handle/2268/75356 https://orbi.uliege.be/bitstream/2268/75356/1/a_belleflamme_meteoclim_2010.pdf |
genre |
Greenland Groenland Ice Sheet |
genre_facet |
Greenland Groenland Ice Sheet |
op_source |
MeteoClim2010, Brussels, Belgium [BE], 5 November 2010 |
op_relation |
https://orbi.uliege.be/handle/2268/75356 info:hdl:2268/75356 https://orbi.uliege.be/bitstream/2268/75356/1/a_belleflamme_meteoclim_2010.pdf |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
_version_ |
1796943034055655424 |