Articles | Volume 22, issue 21
https://doi.org/10.5194/acp-22-13915-2022
https://doi.org/10.5194/acp-22-13915-2022
Research article
 | 
01 Nov 2022
Research article |  | 01 Nov 2022

Exploring the link between austral stratospheric polar vortex anomalies and surface climate in chemistry-climate models

Nora Bergner, Marina Friedel, Daniela I. V. Domeisen, Darryn Waugh, and Gabriel Chiodo

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Latest update: 20 Jul 2024
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Short summary
Polar vortex extremes, particularly situations with an unusually weak cyclonic circulation in the stratosphere, can influence the surface climate in the spring–summer time in the Southern Hemisphere. Using chemistry-climate models and observations, we evaluate the robustness of the surface impacts. While models capture the general surface response, they do not show the observed climate patterns in midlatitude regions, which we trace back to biases in the models' circulations.
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