Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 21
Articles | Volume 25, issue 21
https://doi.org/10.5194/acp-25-14865-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-14865-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 21
Research article
 | 
05 Nov 2025
Research article |  | 05 Nov 2025

Widespread stratospheric intrusion influence on summer ozone pollution over China revealed by multi-site ozonesonde and validated EAC4 reanalysis

Zhiheng Liao, Jinqiang Zhang, Meng Gao, and Zhiqiang Ma

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Short summary
We present evidence for widespread stratospheric intrusion influence on surface ozone pollution from western plateaus to eastern plains over China in a deep trough event based on multi-site ozonesondes and validated ozone reanalysis. The findings refine the fundamental understanding of stratospheric ozone intrusion and its contribution to surface ozone pollution in China.
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