Data for: Optimization of vertical grid setting for air quality modeling in China considering the effect of aerosol-boundary layer interaction

The compressed file consists of four parts of data utilized in this manuscript: 1. Hourly observed Air Quality Index (AQI) including six critical atmospheric components (CO, O3, NO, PM2.5, PM10, SO2) released by the Ministry of Ecology and Environment (MEE) of People's Republic of China. 2. Surface meteorological observations acquired from the Global Surface Hourly database distributed by the US National Climate Data Center (NCDC). 3. Radiosonde data collected from the University of Wyoming. 4. Single Column Model (SCM) simulations for conventional, optimized and fine resolutions. Note that the regional three-dimensional WRF-Chem modelling results are too large to upload, but could be available when required.