Articles | Volume 18, issue 6
https://doi.org/10.5194/cp-18-1509-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-18-1509-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
01 Jul 2022
Research article |
| 01 Jul 2022
| 01 Jul 2022
Influence of long-term changes in solar irradiance forcing on the Southern Annular Mode
Nicky M. Wright
CORRESPONDING AUTHOR
Research School of Earth Sciences, Australian National University,
Canberra, ACT 2601, Australia
ARC Centre of Excellence for Climate Extremes, Australian National
University, Canberra, ACT 2601, Australia
current address: School of Geosciences, University of Sydney, Sydney, NSW 2006, Australia
Claire E. Krause
Research School of Earth Sciences, Australian National University,
Canberra, ACT 2601, Australia
ARC Centre of Excellence for Climate System Science, Australian
National University, Canberra, ACT 2601, Australia
current address: Geoscience Australia, Canberra, ACT 2609, Australia
Steven J. Phipps
Ikigai Research, Sandy Bay, TAS 7006, Australia
Ghyslaine Boschat
Bureau of Meteorology and ARC Centre of Excellence for Climate
Extremes, Melbourne, VIC 3001, Australia
Nerilie J. Abram
Research School of Earth Sciences, Australian National University,
Canberra, ACT 2601, Australia
ARC Centre of Excellence for Climate Extremes, Australian National
University, Canberra, ACT 2601, Australia
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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.
The Southern Annular Mode (SAM) is a major mode of climate variability. Proxy-based SAM...
