Horizon 1 1 17 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES Geophysical Research Letters e2022GL101478 [11 ] Sahel drought volcanic forcing past millennium PMIP4 AFRIQUE DE L'OUEST SAHEL 2023 fdi:010087475 ENG Geophysical Research Letters 0094-8276 ISI:000942739800001 5 10.1029/2022gl101478 https://www.documentation.ird.fr/hor/fdi:010087475 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/2023-04/010087475.pdf 50 Horizon (IRD) This work provides evidence of the influence of large volcanic eruptions on Sahel rainfall relying on PMIP4/past1000 multi-model simulations, covering the last millennium. A classification of volcanic eruptions in the last millennium according to the meridional symmetry of the associated radiative forcing reveals different mechanisms of the West African Monsoon response at inter-annual timescale. In all cases, these simulated changes result in Sahel drying up to 2 years after an eruption. Besides, we add evidence of a role of varying volcanic activity across the past millennium in the Sahel precipitation variability at multi-decadal to secular timescales. 021 ; 066 ; 020 UR182