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Title

Changes in the African monsoon region at medium-term time horizon using 12 AR4 coupled models under the A1b emissions scenario

Publication Year

2011

Author(s)
  • Fontaine, Bernard
  • Roucou, Pascal
  • Monerie, Paul-Arthur
Source
ATMOSPHERIC SCIENCE LETTERS Volume: 12 Issue: 1 Pages: 83-88 Published: 2011
ISSN
1530-261X
Abstract

This study documents simulated precipitation and circulation changes through the 20C3M and A1b scenarios. It portrays a robust pattern, associating rainfall deficits in subtropical regions with rainfall excesses over West Africa, except in Northern Senegal and Mauritania, with a significant enhancement of both the April-June rainy season in 10/12 models and of the July-September rainy season in 8/12 models. Eastward to 5 degrees W a northward shift in the latitude of the moisture flux convergence at 850 hPa is evident in 10/11 models (+0.58 degrees in mean) and a southward shift in 6/11 models in the western region (-0.24 degrees) is observed. Copyright (C) 2011 Royal Meteorological Society

Author Keyword(s)
  • African monsoon
  • climate change
  • precipitation
  • West Africa
KeyWord(s) Plus
  • CLIMATE-CHANGE
  • SAHEL RAINFALL
  • 20TH-CENTURY
  • VARIABILITY
  • ATTRIBUTION
  • SIMULATIONS
  • NORTHERN
  • PROJECT
  • SST
ESI Discipline(s)
  • Geosciences
Web of Science Category(ies)
  • Geochemistry & Geophysics
  • Meteorology & Atmospheric Sciences
Adress(es)

[Fontaine, Bernard; Roucou, Pascal; Monerie, Paul-Arthur] Univ Burgundy, Ctr Rech Climatol, CNRS, UMR5210, Dijon, France

Reprint Adress

Fontaine, B (reprint author), Univ Burgundy, Ctr Rech Climatol, CNRS, UMR5210, Dijon, France.

Country(ies)
  • France
CNRS - Adress(es)
  • Centre de recherches de climatologie (CRC), UMR5210
Accession Number
WOS:000287816700014
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