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Keywords:

  • African Monsoon;
  • decadal variability;
  • interannual variability;
  • Sahelian rainfall;
  • SST forced response

Abstract

We review the studies carried out during the African Monsoon Multidisciplinary Analysis (AMMA)-EU on the changes of interannual sea surface temperature (SST)–West African monsoon (WAM) covariability at multidecadal timescales, together with the influence of global warming (GW). The results obtained in the AMMA-EU suggest the importance of the background state, modulated by natural and anthropogenic variability, in the appearance of different interannual modes. The lack of reliability of current coupled models in giving a realistic assessment for WAM in the future is also stated. Copyright © 2011 Royal Meteorological Society