Weather and Climate Dynamics
Weather and Climate Dynamics
WCD
Articles | Volume 7, issue 3
Articles | Volume 7, issue 3
https://doi.org/10.5194/wcd-7-1619-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wcd-7-1619-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 7, issue 3
Research article
 | 
02 Sep 2026
Research article |  | 02 Sep 2026

An energetic perspective on the impact of the Atlantic Multidecadal Variability on the West African Monsoon

Elsa Mohino, Paul-Arthur Monerie, Juliette Mignot, and Simona Bordoni

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Short summary
In this study, we show that the positive phase of the Atlantic Multidecadal Variability, with warmer North Atlantic surface temperatures, enhances local latent heat release and net energy input into the atmosphere. The excess energy is exported through a northward shift of the tropical rain belt, leading to increased rainfall over the Sahel. Deep convection is also enhanced while mid-level dry-air intrusion is reduced due to a weakening of the shallow meridional circulation over the Sahara.
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