Articles | Volume 18, issue 10
Atmos. Chem. Phys., 18, 7573–7593, 2018
https://doi.org/10.5194/acp-18-7573-2018

Special issue: Regional transport and transformation of air pollution in...

Atmos. Chem. Phys., 18, 7573–7593, 2018
https://doi.org/10.5194/acp-18-7573-2018

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 et al.

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 PM2.5 concentration during January 2013 in Beijing well, and successfully represents the improved air quality during November and December in 2017.
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