[1] [1] China Meteorological Administration. Observation and Forecasting Levels of Haze ［M］. Beijing: China Meteorological Press, 2010: 201(in Chinese).

[2] [2] Chen Boyu. Study of the haze over the Guangzhou region ［J］. Guangzhou Chemical, 2010, 37(6): 224-226(in Chinese).

[3] [3] Wu Dui, Deng Xuejiao, Bi Xueyan, et al. Distinguishing of fog or haze and the operational criteria for observation forecasting and early warning of haze in urban areas of Guangdong, Hongkong and Macau ［J］. Guangdong Meteorology, 2007, 29(2): 5-10(in Chinese).

[4] [4] Wu Dui. A discussion on difference between haze and fog and warning of ash haze weather ［J］. Meteorological, 2005, 31(4): 3-7(in Chinese).

[5] [5] http://baike.baidu.com/view/49842.htm#4 ［OL］.

[6] [6] Dong Yunsheng, Liu Wenqing, Liu Jianguo, et al. Lidar study of the aerosol characteristic in Beijing during traffic controlled ［J］. Acta Optica Sinica, 2009, 29(2): 292-296(in Chinese).

[7] [7] Dong Yunsheng, Liu Wenqing, Lu Yihuai, et al. Observation of the atmospheric particles around Beijing area during 2008 Olympic Games by lidar ［J］. Journal of Atmospheric and Environmental Optics, 2009, 4(5): 368-375(in Chinese).

[8] [8] Ansmann A, Riebesel M, Weitkamp C. Measurement of atmospheric aerosol extinction profiles with a Raman Lidar ［J］. Opt. Lett., 1990, 15(13): 746-748.

[9] [9] Schotland R M, Sassen K, Stone R. Observation by lidar of linear depolarization ratios for hydrometeors ［J］. J. Appl. Meteor., 1971, 10(5): 1011-1017.

[10] [10] Sassen K. Lidar backscatter depolarization technique for cloud and aerosol research ［C］. Light Scattering by Nonspherical Particles: Theory, Measurements, and Applications ［M］. San Diego: Academic Press, 2000: 393-416.

[11] [11] Mattis I, Ansmann A, Müller D, et al. Multiyear aerosol observations with dualwavelength Raman lidar in the framework of EARLINET ［J］. J. Geophys. Res., 2004, 109(13): D13203.1-D13203.15.

[12] [12] Tesche M, Ansmann A, Müller D, et al. Particle backscatter, extinction, and lidar ratio profiling with Raman lidar in south and north China ［J］. Appl. Opt., 2007, 46(25): 6302-6308.

[13] [13] Li C C, Mao J T, Lau K-H A, et al. Characteristics of distribution and seasonal variation of aerosol optical depth in eastern China with MODIS products ［J］. Chin. Sci. Bull., 2003, 48(22): 2488-2495.

[14] [14] Müller D, Tesche M, Eichler H, et al. Strong particle light absorption over the Pearl River Delta (south China) and Beijing (north China) determined from combined Raman lidar and Sun photometer observations ［J］. Geophys. Res. Lett., 2006, 33(20): L20811.1-L20811.4.

[15] [15] Murayama T, Sekiguchi M. Intercomparison of aerosol optical properties observed by LIDAR, sun/sky photometers and surface in situ measurements during Asian dust event in Tokyo, Japan ［C］. Proc. the 24th International Laser Radar Conference, Boulder-Colorado, USA, 2008: 943-946.

[16] [16] Wu Dui, Deng Xuejiao, Bi Xueyan, et al. Study on the visibility reduction caused by atmospheric haze in Guangzhou Area ［J］. Journal of Tropical Meteorology, 2007, 23(1): 1-6(in Chinese).

[17] [17] Ramanathan V, Crutzen P J, Mitra A P, et al. The Indian Ocean experiment and the Asian brown cloud ［J］. Curr. Sci., 2002, 83(8): 947-955.

[18] [18] Liu Z, Sugimoto N, Murayama T. Extinction-to-backscatter ratio of Asian dust observed with high-spectral resolution LIDAR and Raman LIDAR ［J］. Appl. Opt., 2002, 41(15): 2760-2767.