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Discussion papers
https://doi.org/10.5194/acp-2018-1127
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2018-1127
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 19 Nov 2018

Research article | 19 Nov 2018

Review status
This discussion paper is a preprint. A revision of this manuscript was accepted for the journal Atmospheric Chemistry and Physics (ACP) and is expected to appear here in due course.

Arctic sea ice, Eurasia teleconnection pattern and summer surface ozone pollution in North China

Zhicong Yin1,2, Huijun Wang1,2, Yuyan Li1, Xiaohui Ma3, and Xinyu Zhang1 Zhicong Yin et al.
  • 1Key Laboratory of Meteorological Disaster, Ministry of Education/Joint International Research Laboratory of Climate and Environment Change (ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science & Technology, Nanjing 210044, China
  • 2Nansen-Zhu International Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
  • 3Institute of Urban Meteorology, CMA/Environmental Meteorology Forecast Center of Beijing-Tianjin-Hebei

Abstract. Summer surface O3 pollution has rapidly intensified recently, damaging human and ecosystem health. In 2017, the summer mean maximum daily average 8 h concentration of ozone was greater than 150 μg/m3 in North China. Here, we show that in addition to anthropogenic emissions, the Eurasia teleconnection pattern (EUTP), a major globally significant atmospheric teleconnection pattern, influences surface O3 pollution in North China. The local meteorological conditions associated with the EUTP positive phase supported intense and efficient photochemical reactions to produce more surface O3. The associated southerlies over North China transported surrounding O3 precursors to superpose local emissions. Solar radiation and high temperature dramatically enhanced O3 photochemical reactions. Furthermore, due to the close connection between the preceding May Arctic sea ice and summer EUTP, approximately 60 % of the interannual variability of summer surface O3 pollution was attributed to Arctic sea ice to the north of Eurasia. This finding aids in the seasonal prediction of O3 pollution.

Zhicong Yin et al.
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Interactive discussion
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Zhicong Yin et al.
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Short summary
Summer surface O3 pollution has rapidly intensified recently, damaging human and ecosystem health. This study is to examine the large-scale atmospheric circulations associated with the interannual variation of summer surface O3 pollution in North China based on long-term meteorological observations. The outcomes of our research may provide a basis for understanding the interannual variation of O3 pollution and its seasonal-to-interannual prediction.
Summer surface O3 pollution has rapidly intensified recently, damaging human and ecosystem...
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