Reference : Impact of spatial resolution on the modelling of the Greenland ice sheet surface mass ba...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
http://hdl.handle.net/2268/124136
Impact of spatial resolution on the modelling of the Greenland ice sheet surface mass balance between 1990–2010, using the regional climate model MAR
English
Franco, Bruno mailto [Université de Liège - ULg > Département de géographie > Topoclimatologie >]
Fettweis, Xavier mailto [Université de Liège - ULg > Département de géographie > Topoclimatologie >]
Lang, Charlotte mailto [Université de Liège - ULg > Géographie > Climatologie et Topoclimatologie > >]
Erpicum, Michel mailto [Université de Liège - ULg > Département de géographie > Topoclimatologie >]
27-Jun-2012
Cryosphere (The)
Copernicus
6
695-711
Yes
International
1994-0416
1994-0424
Katlenberg-Lindau
Germany
[en] Greenland ice sheet ; MAR model ; spatial resolution
[en] With the aim to force an ice dynamical model, the Greenland ice sheet (GrIS) surface mass balance (SMB) was modelled at different spatial resolutions (15-50 km) for the period 1990-2010, using the regional climate model MAR (Modèle Atmosphérique Régional) forced by the ERA-INTERIM reanalysis. This comparison revealed that (i) the inter-annual variability of the SMB components is consistent within the different spatial resolutions investigated, (ii) the MAR model simulates heavier precipitation on average over the GrIS with diminishing spatial resolution, and (iii) the SMB components (except precipitation) can be derived from a simulation at lower resolution with an intelligent interpolation. This interpolation can also be used to approximate the SMB components over another topography/ice sheet mask of the GrIS. These results are important for the forcing of an ice dynamical model, needed to enable future projections of the GrIS contribution to sea level rise over the coming centuries.
Laboratoire de Climatologie et Topoclimatologie, Département de Géographie, ULg
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers
http://hdl.handle.net/2268/124136
10.5194/tc-6-695-2012
http://www.the-cryosphere.net/6/695/2012/tc-6-695-2012.html

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