Reference : The 1958–2009 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circ...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
http://hdl.handle.net/2268/36540
The 1958–2009 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation
English
Fettweis, Xavier mailto [Université de Liège - ULg > Département de géographie > Topoclimatologie >]
Mabille, Georges mailto [Université de Liège - ULg > Département de géographie > Topoclimatologie > >]
Erpicum, Michel mailto [Université de Liège - ULg > Département de géographie > Topoclimatologie >]
Nicolay, Samuel mailto [Université de Liège - ULg > Département de mathématique > Analyse - Analyse fonctionnelle - Ondelettes >]
Van den Broeke, Michiel [Institute for Marine and Atmospheric Research, Utrecht, The Netherlands > > > >]
2011
Climate Dynamics
Springer Science & Business Media B.V.
36
1 (2011)
139-159
Yes (verified by ORBi)
International
0930-7575
[en] Greenland ice sheet ; surface melt ; circulation type classification
[en] In order to assess the impact of the mid-tropospheric circulation over the Greenland ice sheet (GrIS) on surface melt, as simulated by the regional climate model MAR, an automatic Circulation type classification (CTC) based on 500 hPa geopotential height from reanalyses is developed. General circulation correlates significantly with the surface melt anomalies for the summers in the period 1958–2009. The record surface melt events observed during the summers of 2007–2009 are linked to the exceptional persistence of atmospheric circulations favouring warm air advection. The CTC emphasizes that summer 500 hPa circulation patterns have changed since the beginning of the 2000s; this process is partly responsible for the recent warming observed over the GrIS.
Researchers
http://hdl.handle.net/2268/36540
10.1007/s00382-010-0772-8
http://dx.doi.org/10.1007/s00382-010-0772-8
The online version of this article (doi:10.1007/s00382-010-0772-8) contains supplementary material, which is available to authorized users

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