Climatological study of the Boundary-layer air Stagnation Index  for China and its relationship with air pollution

Huang, Qianqian; Cai, Xuhui; Wang, Jian; Song, Yu; Zhu, Tong

doi:https://doi.org/10.5194/acp-18-7573-2018

Articles | Volume 18, issue 10

https://doi.org/10.5194/acp-18-7573-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Regional transport and transformation of air pollution in...

https://doi.org/10.5194/acp-18-7573-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 10

Research article

|

31 May 2018

Research article |

| 31 May 2018

Climatological study of the Boundary-layer air Stagnation Index for China and its relationship with air pollution

Qianqian Huang, Xuhui Cai, Jian Wang, Yu Song, and Tong Zhu

Supplement

https://doi.org/10.5194/acp-18-7573-2018-supplement

Data sets

The Integrated Surface Database Recent Developments and Partnerships A. Smith, N. Lott, N., and R. Vose https://doi.org/10.1175/2011bams3015.1

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Short summary

Air stagnation index is a vital meteorological measure of the atmosphere's ability to dilute air pollutants. We propose a Boundary-layer air Stagnation Index (BSI) based on daily maximal ventilation, real latent instability and precipitation. The BSI is positively correlated with API during 2000–2012, tracks the day-by-day variation of PM_2.5 concentration during January 2013 in Beijing well, and successfully represents the improved air quality during November and December in 2017.