Articles | Volume 21, issue 9
Atmos. Chem. Phys., 21, 6985–6997, 2021
https://doi.org/10.5194/acp-21-6985-2021

Special issue: Resolving uncertainties in solar geoengineering through multi-model...

Atmos. Chem. Phys., 21, 6985–6997, 2021
https://doi.org/10.5194/acp-21-6985-2021

Research article 07 May 2021

Research article | 07 May 2021

Robust winter warming over Eurasia under stratospheric sulfate geoengineering – the role of stratospheric dynamics

Antara Banerjee et al.

Data sets

Stratospheric Aerosol Geoengineering Large Ensemble Project - (GLENS) Simone Tilmes, Jadwiga H. Richter, Michael Mills, Ben Kravitz, Douglas G. MacMartin https://doi.org/10.5065/D6JH3JXX

Model code and software

antara-banerjee/GeoengineeringLE\_WinterWarming: Publication Code (Version v1.0.0) Antara Banerjee https://doi.org/10.5281/zenodo.4713591

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Short summary
We find that simulated stratospheric sulfate geoengineering could lead to warmer Eurasian winters alongside a drier Mediterranean and wetting to the north. These effects occur due to the strengthening of the Northern Hemisphere stratospheric polar vortex, which shifts the North Atlantic Oscillation to a more positive phase. We find the effects in our simulations to be much more significant than the wintertime effects of large tropical volcanic eruptions which inject much less sulfate aerosol.
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