TY - JOUR A1 - Chen, D. A1 - Liu, Z. A1 - Ban, J. A1 - Chen, M. T1 - 2015 and 2016 winter-time air pollution in China: SO2 emission changes derived from a WRF/Chem-EnKF coupled data assimilation system JO - Atmos. Chem. Phys. Discuss. J1 - ACPD VL - 2019 SP - 1 EP - 52 Y1 - 2019/01/04 PB - Copernicus Publications SN - 1680-7375 UR - https://acp.copernicus.org/preprints/acp-2018-1152/ L1 - https://acp.copernicus.org/preprints/acp-2018-1152/acp-2018-1152.pdf DO - 10.5194/acp-2018-1152 ER -