Articles | Volume 26, issue 12
https://doi.org/10.5194/acp-26-8407-2026
https://doi.org/10.5194/acp-26-8407-2026
Research article
 | 
17 Jun 2026
Research article |  | 17 Jun 2026

Impact of northward tropical cyclones on ozone in Southeastern China

Shanshan Ouyang, Tao Deng, Jingyang Chen, Run Liu, Xiaoyang Chen, Jinnan Yuan, Yanyan Huang, and Shaw Chen Liu

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Cited articles

Cao, X., Wu, R., Jiang, X., Dai, Y., Wang, P., Lin, C., Deng, D., Sun, Y., Wu, L., Chen, S., Wang, Y., and Xiao, X.: Future changes in tropical cyclone tracks over the western North Pacific under climate change, npj Climate and Atmospheric Science, 8, 148, https://doi.org/10.1038/s41612-025-01036-6, 2025. 
Chen, Z., Liu, J., Cheng, X., Yang, M., and Wang, H.: Positive and negative influences of typhoons on tropospheric ozone over southern China, Atmos. Chem. Phys., 21, 16911–16923, https://doi.org/10.5194/acp-21-16911-2021, 2021. 
Chen, Z., Liu, J., Qie, X., Cheng, X., Shen, Y., Yang, M., Jiang, R., and Liu, X.: Transport of substantial stratospheric ozone to the surface by a dying typhoon and shallow convection, Atmos. Chem. Phys., 22, 8221–8240, https://doi.org/10.5194/acp-22-8221-2022, 2022. 
Deng, T., Wang, T., Wang, S., Zou, Y., Yin, C., Li, F., Liu, L., Wang, N., Song, L., Wu, C., and Wu, D.: Impact of typhoon periphery on high ozone and high aerosol pollution in the Pearl River Delta region, Sci. Total Environ., 668, 617–630, https://doi.org/10.1016/j.scitotenv.2019.02.450, 2019. 
Ding, H., Kong, L., You, Y., Mao, J., Chen, W., Chen, D., Chang, M., and Wang, X.: Effects of tropical cyclones with different tracks on ozone pollution over the Pearl River Delta region, Atmos. Res., 286, https://doi.org/10.1016/j.atmosres.2023.106680, 2023. 
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Short summary
Northward tropical cyclones (TCs) reaching typhoon (TY) intensity, especially within 120–130°E and 20–30°N, elevate ozone concentration in southeastern China through fewer clouds, stronger solar radiation, lower relative humidity, and more stagnant air, while ozone remains high but declines slightly when TC intensity exceeds TY. Numerical simulations with TC intensity sensitivity experiments reveal that the dynamical and radiative effects of these TCs can increase ozone by over 10 ppb.
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