Articles | Volume 18, issue 6
https://doi.org/10.5194/cp-18-1509-2022
https://doi.org/10.5194/cp-18-1509-2022
Research article
 | 
01 Jul 2022
Research article |  | 01 Jul 2022

Influence of long-term changes in solar irradiance forcing on the Southern Annular Mode

Nicky M. Wright, Claire E. Krause, Steven J. Phipps, Ghyslaine Boschat, and Nerilie J. Abram

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Latest update: 16 Jul 2024
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Short summary
The Southern Annular Mode (SAM) is a major mode of climate variability. Proxy-based SAM reconstructions show changes that last millennium climate simulations do not reproduce. We test the SAM's sensitivity to solar forcing using simulations with a range of solar values and transient last millennium simulations with large-amplitude solar variations. We find that solar forcing can alter the SAM and that strong solar forcing transient simulations better match proxy-based reconstructions.