[1] [1] Zhou Yaoyao, Ma Yan, Zheng Jun,et al. Pollution characteristics and light extinction of water-soluble ions in PM2.5 during winter hazy days at North suburban Nanjing[J]. Environmental Science, 2015, 36(6): 1927-1934(in Chinese).

[2] [2] Intergovernmental Panel on Climate Change (IPCC).Climate Change 2007- The Physical Science Basis[M]. UK: Cambridge University Press, 2007.

[3] [3] Chen B B, Sverdlik L G, Imashev S A,et al. Lidar measurements of the vertical distribution of aerosol optical and physical properties over Central Asia[J]. Int. J. Atmos. Sci., 2013, Article ID: 261546, 1-17.

[4] [4] Zhang W C, Augustin M, Zhang Y,et al. Spatial and temporal variability of aerosol vertical distribution based on lidar observations: a haze case study over Jinhua Basin[J]. Adv. Meteorol. 2015, Article ID: 349592, 1-8.

[5] [5] Wang Yuan, Deng Junying, Shi Lanhong,et al. A floating-dust case study based on the vertical distribution of aerosol optical properties[J]. Environmental Science, 2014, 35(3): 831-838(in Chinese).

[6] [6] Wang shaolin, Xie Pinhua, Hu Shunxing,et al. Measurement of atmospheric boundary layer pollutants by mobile lidar in Beijing[J]. Environmental Science, 2008, 29(3): 562-568(in Chinese).

[7] [7] Chen Min, Sun Dongsong, Gu Jiang,et al. Two-dimensional distribution of aerosol measured by lidar[J]. Infrared and Laser Engineering, 2007, 36(3): 369-372(in Chinese).

[8] [8] Chazette P, Totems J, Ancellet G,et al. Temporal consistency of lidar observables during aerosol transport events in the framework of the ChArMEx/ADRIMED campaign at Menorca Island in June 2013[J]. Atmos. Chem. Phys. Discuss., 2015, 15(22): 32723-32757.

[9] [9] Fan fan, Chen Yizhen, Lu Jiangang,et al. Lidar detection of a sand-dust process at Beijing in spring[J]. Research of Environmental Sciences, 2013, 26(11): 1156-1161(in Chinese).

[10] [10] Wang Yaoting, Miao Shiguang, Zhang Xiaoling. Study on atmospheric pollution characteristics before a snowfall event in autumn in the Beijing urban area using lidar[J].Climatic and Environmental Research, 2014, 19(6): 660-669(in Chinese).

[11] [11] Yang Xin, Chen Yizhen, Liu Houfeng,et al. Characteristics and formation mechanism of a serious haze event in January 2013 in Beijing[J]. China Environmental Science, 2014, 34(2): 282-288(in Chinese).

[12] [12] HYSPLIT data[OL]. http://www.arl.noaa.gov/ HYSPLIT－info.php.

[13] [13] Hu Die, Zhang Lei, Sha Sha,et al. Contrast and application of MODIS aerosol products over the arid and semiarid region in northwest China[J]. Journal of Arid Meteorology, 2013, 31(4): 678-683(in Chinese).

[14] [14] Wong M S, Nichol J E, Lee K H. An operational MODIS aerosol retrieval algorithm at high spatial resolution, and its application over a complex urban region[J].Atmos. Res., 2011, 99(3-4): 570-589.

[15] [15] Observation and forecasting levels of haze QX/T 113-2010[S] (in Chinese).

[16] [16] Wang Qian. Study of air pollution transportation source in Shanghai using trajectory model[J].Research of Environmental Sciences, 2013, 26(4): 357-364(in Chinese).