Non-methane volatile organic compound emissions over China estimated using TROPOMI HCHO retrievals

We used the Regional multi-Air Pollutant Assimilation System (RAPAS) with the EnKF algorithm to optimize daily NMVOC emissions in China by assimilating TROPOMI HCHO retrievals. airqual.qc.csv includes assimilated and verified surface NO2 observations. HCHO.tar.gz includes assimilated TROPOMI HCHO retrievals. posterior_emission_27km.nc and posterior_emission_mg_27km.nc includes inferred daily posterior anthropogenic and biogenic NMVOC emissions respectively for August 2022.