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ACP | Articles | Volume 20, issue 8
Atmos. Chem. Phys., 20, 4667–4680, 2020
https://doi.org/10.5194/acp-20-4667-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Chem. Phys., 20, 4667–4680, 2020
https://doi.org/10.5194/acp-20-4667-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 21 Apr 2020

Research article | 21 Apr 2020

The combined effect of two westerly jet waveguides on heavy haze in the North China Plain in November and December 2015

Xiadong An et al.

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Cited articles

Chang, L. Y., Xu, J. M., Tie, X. X., and Wu, J. B.: Impact of the 2015 El Nino event on winter air quality in China, Sci. Rep., 6, 34275, https://doi.org/10.1038/srep34275, 2016. 
Chen, H. S., Liu, L., and Zhu, Y. J.: Possible linkage between winter extreme low temperature events over China and synoptic-scale transient wave activity, Sci. China Ser., 56, 1266–1280, https://doi.org/10.1007/s11430-012-4442-z, 2013. 
China Meteorological Administration: QXT 113-2010 Observation and forecasting levels of haze, China Meteorol. Press, Beijing, China, 2010 (in Chinese). 
CMA: China ground observation data sets, available at: http://data.cma.cn/, last access: 12 November 2017 (in Chinese). 
Cressman, G. P.: An operational objective analysis system, Mon. Weather Rev., 87, 367–374, 1959. 
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Severe haze occurred in the North China Plain (NCP) in November to December 2015. We found that the two Rossby waveguides within the westerly jet originating from the Mediterranean were responsible for the haze formation in the NCP. The weak East Asia winter monsoon and anomalous circulation with ascending motion over southern China and descending motion over the NCP related to the two Rossby waveguides, which modulated haze accumulation and favored the maintenance of severe haze.
Severe haze occurred in the North China Plain (NCP) in November to December 2015. We found that...
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