In the White Paper on Ozone Prevention and Control, the meteorological and climatic factors of ozone pollution mentioned the influence of weather system on surface ozone: tropical cyclones drive the air flow exchange in the troposphere and stratosphere, resulting in the increase of near-surface ozone concentration (Jiang et al., 20 15).

Highlights of the article:

? Firstly, the vertical distribution of tropospheric ozone at Yangjiang Station in the Pearl River Delta is introduced.

? Tropical cyclone storms lead to the thinning of the ozone layer over the troposphere.

? STE (Stratosphere-Troposphere Exchange) is the main factor causing the ozone peak in the upper troposphere.

? The contribution of stratospheric O3 to surface O3 is about 10.9 ppbv. (converted to 23.326ug/m3, accounting for about 1/5).

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Personal thoughts:

1. Compare the Blue Book of Ozone Pollution Prevention and Control. The contribution of stratospheric O3 to surface O3 is about 23.326ug/m3, which is about 1/5, and it has certain regional representativeness. (But this study is the observation data of 20 13).

2. About 20% of the ground ozone is deposited by stratospheric ozone, so the influence of weather system should be fully considered in the future ozone forecast of the Pearl River Delta.

(Blue Book on Ozone Prevention and Control? )

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