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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/acp-2017-521
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
13 Jun 2017
Review status
This discussion paper is under review for the journal Atmospheric Chemistry and Physics (ACP).
Role of Atmospheric Circulations on Haze Pollution in December 2016
Zhicong Yin1,2 and Huijun Wang1,2,3 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 Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
3Climate Change Research Center, Chinese Academy of Sciences, Beijing, China
Abstract. In the east of China, recent haze pollution has been severe and damaging. In addition to anthropogenic emissions, atmospheric circulations and local meteorological conditions were conductive factors. The number of December haze days over North China and the Huanghuai area has increased sharply since 2010 and was greatest in 2016. During 2016, the most aggressive control measures for anthropogenic emissions were executed from 16–21 December, but the most severe haze pollution still occurred, covering approximately 25 % of the land area of China and lasting for 6 days. The atmospheric circulations must play critical roles. The associated atmospheric circulations that were verified by climatic correlation analysis were a weaker East Asia jet stream in the upper troposphere, a positive phase of the East Atlantic/West Russia pattern in the middle troposphere and conductive local weather conditions (lower PBL, small surface wind speed, and abundant moisture) near the surface. The influence of sea surface temperature near the Gulf of Alaska and the subtropical eastern Pacific, snow cover in western Siberia and associated physical processes on haze pollution are also discussed.

Citation: Yin, Z. and Wang, H.: Role of Atmospheric Circulations on Haze Pollution in December 2016, Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2017-521, in review, 2017.
Zhicong Yin and Huijun Wang
Zhicong Yin and Huijun Wang
Zhicong Yin and Huijun Wang

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Short summary
In the east of China, recent haze pollution has been severe and damaging. The number of December haze days over North China and the Huanghuai area has increased sharply since 2010 and was greatest in 2016. During 2016, the most aggressive control measures for anthropogenic emissions were executed from 16–21 December, but the most severe haze pollution still occurred. The atmospheric circulations must play critical roles.
In the east of China, recent haze pollution has been severe and damaging. The number of December...
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