%0 Journal Article %9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES %A Villamayor, J. %A Khodri, Myriam %A Fang, S. W. %A Jungclaus, J. H. %A Timmreck, C. %A Zanchettin, D. %T Sahel droughts induced by large volcanic eruptions over the last millennium in PMIP4/Past1000 simulations %D 2023 %L fdi:010087475 %G ENG %J Geophysical Research Letters %@ 0094-8276 %K Sahel drought ; volcanic forcing ; past millennium ; PMIP4 %K AFRIQUE DE L'OUEST ; SAHEL %M ISI:000942739800001 %N 5 %P e2022GL101478 [11 ] %R 10.1029/2022gl101478 %U https://www.documentation.ird.fr/hor/fdi:010087475 %> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/2023-04/010087475.pdf %V 50 %W Horizon (IRD) %X 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