Reference : Global Radiative Flux and Cloudiness Variability for the Period 1959–2010 in Belgium:...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
http://hdl.handle.net/2268/226691
Global Radiative Flux and Cloudiness Variability for the Period 1959–2010 in Belgium: A Comparison between Reanalyses and the Regional Climate Model MAR
English
Wyard, Coraline mailto [Université de Liège - ULiège > Département de géographie > Climatologie et Topoclimatologie >]
Doutreloup, Sébastien mailto [Université de Liège - ULiège > Département de géographie > Climatologie et Topoclimatologie >]
Belleflamme, Alexandre [Université de Liège - ULiège > Géographie > Climatologie et Topoclimatologie > >]
Wild, Martin [ETH Zurich > Institute for Atmospheric and Climate Science > > >]
Fettweis, Xavier mailto [Université de Liège - ULiège > Département de géographie > Climatologie et Topoclimatologie >]
13-Jul-2018
Atmosphere
MDPI
9
7
Regional Climate Modeling
262
Yes (verified by ORBi)
International
2073-4433
Basel
Switzerland
[en] regional and mesoscale modelling ; reanalysis ; global radiative flux ; cloud cover ; europe
[en] The use of regional climate models (RCMs) can partly reduce the biases in global radiative flux (Eg↓) that are found in reanalysis products and global models, as they allow for a finer spatial resolution and a finer parametrisation of surface and atmospheric processes. In this study, we assess the ability of the MAR («Modèle Atmosphérique Régional») RCM to reproduce observed changes in Eg↓, and we investigate the added value of MAR with respect to reanalyses. Simulations were performed at a horizontal resolution of 5 km for the period 1959–2010 by forcing MAR with different reanalysis products: ERA40/ERA-interim, NCEP/NCAR-v1, ERA-20C, and 20CRV2C. Measurements of Eg↓ from the Global Energy Balance Archive (GEBA) and from the Royal Meteorological Institute of Belgium (RMIB), as well as cloud cover observations from Belgocontrol and RMIB, were used for the evaluation of the MAR model and the forcing reanalyses. Results show that MAR enables largely reducing the mean biases that are present in the reanalyses. The trend analysis shows that only MAR forced by ERA40/ERA-interim shows historical trends, which is probably because ERA40/ERA-interim has a better horizontal resolution and assimilates more observations than the other reanalyses that are used in this study. The results suggest that the solar brightening observed since the 1980s in Belgium has mainly been due to decreasing cloud cover.
Sphères - SPHERES
FRIA - Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/226691
10.3390/atmos9070262
http://www.mdpi.com/2073-4433/9/7/262

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
atmosphere-09-00262.pdfPublisher postprint14.79 MBView/Open

Additional material(s):

File Commentary Size Access
Open access
atmosphere-09-00262-s001.pdfSupplementary materials10.78 MBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.