Articles | Volume 24, issue 6
https://doi.org/10.5194/acp-24-3759-2024
https://doi.org/10.5194/acp-24-3759-2024
Peer-reviewed comment
 | 
26 Mar 2024
Peer-reviewed comment |  | 26 Mar 2024

Comment on “Transport of substantial stratospheric ozone to the surface by a dying typhoon and shallow convection” by Chen et al. (2022)

Xiangdong Zheng, Wen Yang, Yuting Sun, Chunmei Geng, Yingying Liu, and Xiaobin Xu

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Short summary
Chen et al. (2022) attributed the nocturnal ozone enhancement (NOE) during the night of 31 July 2021 in the North China Plain (NCP) to "the direct stratospheric intrusion to reach the surface". We analyzed in situ data from the NCP. Our results do not suggest that there was a significant impact from the stratosphere on surface ozone during the NOE. We argue that the NOE was not caused by stratospheric intrusion but originated from fresh photochemical production in the lower troposphere. 
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