Poster (Scientific congresses and symposiums)
How reliable are the models to study recent climate change ? A study of heat/cold waves and radiative fluxes trends over 1900-2010 using the model MAR in Belgium
Wyard, Coraline; Fettweis, Xavier; Scholzen, Chloé
201615th International Swiss Climate Summer School 2016 "Climate Risks - Coping with Uncertainties"
 

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Keywords :
Regional Climate Model; Reanalysis; Europe; Belgium; Heat waves; Cloudiness; Solar Radiation; MAR
Abstract :
[en] This research aims to assess the ability of the regional climate model MAR ("Modèle Atmosphérique Régional") to reconstruct the observed twentieth century climatology of extreme events and solar radiation in Belgium, as a necessary condition for reliable future projections. Simulations were performed by forcing MAR with several reanalyses: the ERA40/ERA-Interim, the ERA-20C and the NCEP/NCAR-v1. The results suggests that increasing air temperature would have generated decreasing relative humidity which would have lead to a decrease in cloudiness and an increase in solar downward radiation. This research illustrates the dependency between RCMs and their forcings. The forcing reanalyses can generate divergent trends while contrary to Global Climate Models (GCM), the reanalyses assimilate observations and are supposed to represent the same climate.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Wyard, Coraline  ;  Université de Liège > Département de géographie > Climatologie et Topoclimatologie
Fettweis, Xavier  ;  Université de Liège > Département de géographie > Climatologie et Topoclimatologie
Scholzen, Chloé ;  Université de Liège > Département de géographie > Climatologie et Topoclimatologie
Language :
English
Title :
How reliable are the models to study recent climate change ? A study of heat/cold waves and radiative fluxes trends over 1900-2010 using the model MAR in Belgium
Publication date :
29 August 2016
Event name :
15th International Swiss Climate Summer School 2016 "Climate Risks - Coping with Uncertainties"
Event organizer :
Oeschger Centre for Climate Change research, University of Bern, Switzerland
Event place :
Grindelwald, Switzerland
Event date :
from 28-08-2016 to 02-09-2016
Audience :
International
Funders :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
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since 22 September 2016

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