TY - JOUR A1 - Li, Z. Q. A1 - Xie, Y. S. A1 - Gu, X. F. A1 - Li, D. H. A1 - Li, K. T. A1 - Zhang, X. Y. A1 - Wu, J. A1 - Xiong, W. T1 - Atmospheric column CO2 measurement from a new automatic ground-based sun photometer in Beijing from 2010 to 2012 JO - Atmos. Meas. Tech. Discuss. J1 - AMTD VL - 2012 SP - 8313 EP - 8341 Y1 - 2012/11/16 PB - Copernicus Publications SN - 1867-8610 UR - https://amt.copernicus.org/preprints/5/8313/2012/ L1 - https://amt.copernicus.org/preprints/5/8313/2012/amtd-5-8313-2012.pdf DO - 10.5194/amtd-5-8313-2012 ER -