TY - JOUR A1 - Xiang, Y. A1 - Zhang, T. A1 - Ma, C. A1 - Lv, L. A1 - Liu, J. A1 - Liu, W. A1 - Cheng, Y. T1 - Lidar vertical observation network and data assimilation reveal key processes driving the 3-D dynamic evolution of PM2.5 concentrations over the North China Plain JO - Atmos. Chem. Phys. Discuss. J1 - ACPD VL - 2021 SP - 1 EP - 23 Y1 - 2021/01/08 PB - Copernicus Publications SN - 1680-7375 UR - https://acp.copernicus.org/preprints/acp-2020-1273/ L1 - https://acp.copernicus.org/preprints/acp-2020-1273/acp-2020-1273.pdf DO - 10.5194/acp-2020-1273 ER -