Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 5
Articles | Volume 26, issue 5
https://doi.org/10.5194/acp-26-3723-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-3723-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 5
Research article
 | 
16 Mar 2026
Research article |  | 16 Mar 2026

Sorting sudden stratospheric warmings with the downward tropospheric influence using ERA5 and CESM2-WACCM

Rongzhao Lu and Jian Rao

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Short summary
The downward impact of sudden stratospheric warming events (SSWs) on the troposphere is still controversial. We further classify downward-propagating SSWs (DWs) into three types that are followed by cold surges over Eurasia (EA), over North America (NA), and over both (BOTH), respectively. This study reveals the diversity of the DWs and distinguishes their potential impact on both continents in the Northern Hemisphere.
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