Articles | Volume 22, issue 6
https://doi.org/10.5194/acp-22-4187-2022
https://doi.org/10.5194/acp-22-4187-2022
Research article
 | 
31 Mar 2022
Research article |  | 31 Mar 2022

Evolution of the intensity and duration of the Southern Hemisphere stratospheric polar vortex edge for the period 1979–2020

Audrey Lecouffe, Sophie Godin-Beekmann, Andrea Pazmiño, and Alain Hauchecorne

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Latest update: 21 Apr 2024
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Short summary
This study uses a model developped at LATMOS (France) to analyze the behavior of the Antarctic polar vortex from 1979 to 2020 at 675 K, 550 K, and 475 K isentropic levels. We found that the vortex edge intensity is stronger during the September–October–November period, while its edge position is less extended during this period. The polar vortex is stronger and lasts longer during solar minimum years. Breakup dates of the polar vortex are linked to the ozone hole and maximum wind speed.
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