Articles | Volume 22, issue 7
Atmos. Chem. Phys., 22, 4867–4893, 2022
https://doi.org/10.5194/acp-22-4867-2022
Atmos. Chem. Phys., 22, 4867–4893, 2022
https://doi.org/10.5194/acp-22-4867-2022
Research article
 | Highlight paper
12 Apr 2022
Research article  | Highlight paper | 12 Apr 2022

Interactions between the stratospheric polar vortex and Atlantic circulation on seasonal to multi-decadal timescales

Oscar Dimdore-Miles et al.

Data sets

Climate reanalysis Copernicus Climate Change Service Climate Data Store https://climate.copernicus.eu/climate-reanalysis

MOHC UKESM1.0-LL model output prepared for CMIP6 CMIP piControl Y. Tang, S. Rumbold, R. Ellis, D. Kelley, J. Mulcahy, A. Sellar, J. Walton, and C. Jones https://doi.org/10.22033/ESGF/CMIP6.6298

Model code and software

oscardm20994/Wavelet_analysis: Wavlet_analysis O. Dimdore-Miles https://doi.org/10.5281/zenodo.4529635

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Short summary
This study examines interactions between variations in the strength of polar stratospheric winds and circulation in the North Atlantic in a climate model simulation. It finds that the Atlantic Meridional Overturning Circulation (AMOC) responds with oscillations to sets of consecutive Northern Hemisphere winters, which show all strong or all weak polar vortex conditions. The study also shows that a set of strong vortex winters in the 1990s contributed to the recent slowdown in the observed AMOC.
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