The 1958-2008 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation
With the aim to study the impact of the mid-tropospheric circulation on the Greenland ice sheet (GrIS) surface melt simulated by the regional climate model MAR, we developed an automatic Circulation Type Classification (CTC) based on the 500hPa geopotential height from reanalyses over the period 195...
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ftorbi:oai:orbi.ulg.ac.be:2268/36762 2024-04-21T08:03:26+00:00 The 1958-2008 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation Fettweis, Xavier 2009-04-23 https://orbi.uliege.be/handle/2268/36762 https://orbi.uliege.be/bitstream/2268/36762/1/Fettweis-2009-EGU-Talk.pdf en eng http://meetingorganizer.copernicus.org/EGU2009/EGU2009-7855.pdf https://orbi.uliege.be/handle/2268/36762 info:hdl:2268/36762 https://orbi.uliege.be/bitstream/2268/36762/1/Fettweis-2009-EGU-Talk.pdf open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess EGU General Assembly 2009, Vienna, Austria [AT] 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 2009 ftorbi 2024-03-27T14:43:04Z With the aim to study the impact of the mid-tropospheric circulation on the Greenland ice sheet (GrIS) surface melt simulated by the regional climate model MAR, we developed an automatic Circulation Type Classification (CTC) based on the 500hPa geopotential height from reanalyses over the period 1958-2008. This CTC shows that the dominant mode of the regional atmospheric summer variability around the GrIS is linked to the North Atlantic Oscillation (NAO) and that the surface melt anomalies are highly correlated to the general circulation. It explains notably why a record surface melt was observed during the summers 2007 and 2008. In addition, the climate conditions occurring the 27th August of 2003, where the GrIS temperature was 10°C higher than the normal, were the consequence of an almost unique 500 hPa circulation in the 50 last years. Conference Object Greenland Ice Sheet North Atlantic North Atlantic oscillation 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 |
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 Fettweis, Xavier The 1958-2008 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation |
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 |
With the aim to study the impact of the mid-tropospheric circulation on the Greenland ice sheet (GrIS) surface melt simulated by the regional climate model MAR, we developed an automatic Circulation Type Classification (CTC) based on the 500hPa geopotential height from reanalyses over the period 1958-2008. This CTC shows that the dominant mode of the regional atmospheric summer variability around the GrIS is linked to the North Atlantic Oscillation (NAO) and that the surface melt anomalies are highly correlated to the general circulation. It explains notably why a record surface melt was observed during the summers 2007 and 2008. In addition, the climate conditions occurring the 27th August of 2003, where the GrIS temperature was 10°C higher than the normal, were the consequence of an almost unique 500 hPa circulation in the 50 last years. |
format |
Conference Object |
author |
Fettweis, Xavier |
author_facet |
Fettweis, Xavier |
author_sort |
Fettweis, Xavier |
title |
The 1958-2008 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation |
title_short |
The 1958-2008 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation |
title_full |
The 1958-2008 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation |
title_fullStr |
The 1958-2008 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation |
title_full_unstemmed |
The 1958-2008 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation |
title_sort |
1958-2008 greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation |
publishDate |
2009 |
url |
https://orbi.uliege.be/handle/2268/36762 https://orbi.uliege.be/bitstream/2268/36762/1/Fettweis-2009-EGU-Talk.pdf |
genre |
Greenland Ice Sheet North Atlantic North Atlantic oscillation |
genre_facet |
Greenland Ice Sheet North Atlantic North Atlantic oscillation |
op_source |
EGU General Assembly 2009, Vienna, Austria [AT] |
op_relation |
http://meetingorganizer.copernicus.org/EGU2009/EGU2009-7855.pdf https://orbi.uliege.be/handle/2268/36762 info:hdl:2268/36762 https://orbi.uliege.be/bitstream/2268/36762/1/Fettweis-2009-EGU-Talk.pdf |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
_version_ |
1796943278300463104 |