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Title

Weather regimes-Moroccan precipitation link in a regional climate change simulation

Publication Year

2010

Author(s)
  • Driouech, Fatima
  • Deque, Michel
  • Sanchez-Gomez, Emilia
Source
GLOBAL AND PLANETARY CHANGE Volume: 72 Issue: 1-2 Pages: 1-10 Published: 2010
ISSN
0921-8181
Abstract

The local future climate conditions in Morocco under the SRES scenario A1B are studied by using two 30-year time-slice simulations performed by the variable resolution configuration of the global circulation model ARPEGE-Climate. The spatial resolution ranges between 50 and 60 km over the whole country. Firstly, the link between local precipitation and weather regimes in the North Atlantic basin is investigated in terms of mean precipitation and the frequencies of occurrence for wet and intense precipitation days. Then a statistical downscaling approach that uses large-scale fields to construct local scenarios of future climate change is validated in the case of Moroccan winter precipitation. The outputs of experiments carried out from an ensemble of regional climate models are used to assess the uncertainties associated to future climate change. These dynamical downscaling outputs have been also used to test the robustness of the results related to the statistical downscaling technique. Our results concerning the future climate conditions over Morocco show not solely a decrease in mean precipitation but also a change in the precipitation distribution and in extreme events. (C) 2010 Elsevier B.V. All rights reserved.

Author Keyword(s)
  • precipitation
  • Morocco
  • extreme events
  • regional climate modelling
  • climate change
  • statistical downscaling
KeyWord(s) Plus
  • NORTH-ATLANTIC OSCILLATION
  • LARGE-SCALE CIRCULATION
  • FUTURE CLIMATES
  • MODEL
  • FRANCE
  • EUROPE
  • SHIFT
ESI Discipline(s)
  • Environment/Ecology
  • Geosciences
Web of Science Category(ies)
  • Geography, Physical
  • Geosciences, Multidisciplinary
Adress(es)

[Driouech, Fatima] CNRM, Direct Meterol Natl, Casablanca, Morocco; [Deque, Michel] CNRS GAME, Meteo France CNRM, F-31057 Toulouse, France; [Sanchez-Gomez, Emilia] CERFACS, CNRS, SUC, URA 1875, F-31057 Toulouse, France

Reprint Adress

Driouech, F (reprint author), CNRM, Direct Meterol Natl, BP 8106 Casa Oasis, Casablanca, Morocco.

Country(ies)
  • France
  • Morocco
CNRS - Adress(es)
  • Groupe d'étude de l'atmosphère météorologique (GAME), URA1357
  • Sciences de l'Univers au CERFACS (SUC), URA1875
Accession Number
WOS:000279889600001
uid:/P13ZPXHW
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