Articles | Volume 15, issue 23
Atmos. Chem. Phys., 15, 13331–13338, 2015
https://doi.org/10.5194/acp-15-13331-2015
Atmos. Chem. Phys., 15, 13331–13338, 2015
https://doi.org/10.5194/acp-15-13331-2015

Research article 02 Dec 2015

Research article | 02 Dec 2015

Why does surface ozone peak before a typhoon landing in southeast China?

Y. C. Jiang et al.

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Short summary
An O3 episode with high night-time O3 was observed before typhoon landing over southeastern China. Variations in the observed O3, NO2, CO and meteorology during Typhoon Hagibis event clearly suggest a substantial impact of the peripheral downdrafts in the tropical cyclone on the high O3 episode. This study provides observational evidence of typhoon-driven intrusion of O3 from the upper troposphere and lower stratosphere to surface air threatening to ambient air quality.
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