Articles | Volume 22, issue 10
Atmos. Chem. Phys., 22, 6507–6521, 2022
https://doi.org/10.5194/acp-22-6507-2022
Atmos. Chem. Phys., 22, 6507–6521, 2022
https://doi.org/10.5194/acp-22-6507-2022
Research article
19 May 2022
Research article | 19 May 2022

Intraseasonal variation of the northeast Asian anomalous anticyclone and its impacts on PM2.5 pollution in the North China Plain in early winter

Xiadong An et al.

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Cited articles

An, X., Sheng, L., Liu, Q., Li, C., Gao, Y., and Li, J.: The combined effect of two westerly jet waveguides on heavy haze in the North China Plain in November and December 2015, Atmos. Chem. Phys., 20, 4667–4680, https://doi.org/10.5194/acp-20-4667-2020, 2020. 
An, X., Sheng, L., Li, C., Chen, W., Tang, Y., and Huangfu, J.: Effect of rainfall-induced diabatic heating over southern China on the formation of wintertime haze on the North China Plain, Atmos. Chem. Phys., 22, 725–738, https://doi.org/10.5194/acp-22-725-2022, 2022. 
Atlas, E. and Giam, C. S.: Ambient Concentration and Precipitation Scavenging of Atmospheric 461 Organic Pollutants, Water Air Soil Poll., 38, 19–36, 1988. 
Baldwin, M. P., Stephenson, D. B., and Jolliffe, I. T.: Spatial weighting and iterative projection methods for EOFs, J. Climate, 22, 234–243, https://doi.org/10.1175/2008JCLI2147.1, 2009. 
Cai, W., Li, K., Liao, H., Wang, H. J., and Wu, L. X.: Weather conditions conducive to Beijing severe haze more frequent under climate change, Nat. Clim. Change, 7, 257–262, https://doi.org/10.1038/nclimate3249, 2017. 
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The intraseasonal NAAA usually establishes quickly on day −3 with a life span of 8 days. Further results revealed that the probability of regional PM2.5 pollution related to the NAAA for at least 2 days in the NCP is 80% in NDJ period 2000–2021. Particularly, air quality in the NCP tends to deteriorate on day 2 prior to the peak day of the NAAA and reaches a peak on day −1 with a life cycle of 4 days. The corresponding meteorological conditions support these conclusions.
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