[1] J R Bi, J P Huang, Z Y Hu et al. Investigating the aerosol optical and radiative characteristics of heavy haze episodes in Beijing during January of 2013. Journal of Geophysical Research: Atmospheres, 119, 9884-9900(2014).

[2] V A Kovalev, W E Eichinger. Elastic Lidarr: Theory, Practice, and Analysis Methods(2004).

[3] J Schneider, D Balis, C Böckmann et al. A European aerosol research lidar network to establish an aerosol climatology (EARLINET). Journal of Aerosol Science, 31, 592-593(2000).

[4] E J Welton, J R Campbell, J D Spinhirne et al. Global monitoring of clouds and aerosols using a network of micropulse lidar systems, 4153, 151-158(2001).

[5] T Murayama, N Sugimoto, Z Liu et al. Lidar network for the global observation of Asian-dust (KOSA) transportation, 1052-1053(1999).

[6] Y F Fu, Y L Chen, R Li et al. Lateral boundary of cirrus cloud from CALIPSO observations. Scientific Reports, 7, 14221(2017).

[7] A J Illingworth, H W Barker, A Beljaars et al. The EarthCARE satellite: The next step forward in global measurements of clouds, aerosols, precipitation and radiation. Bulletin of the American Meteorological Society, 96, 1311-1332(2015).

[8] S R Pal, W Steinbrecht, A I Carswell. Automated method for lidar determination of cloud-base height and vertical extent. Applied Optics, 31, 1488-1494(1992).

[9] Z E Wang, K Sassen. Cloud type and macrophysical property retrieval using multiple remote sensors. Journal of Applied Meteorology, 40, 1665-1683(2001).

[10] F Y Mao, W Gong, J Li et al. Cloud detection and parameter retrieval based on improved differential zero-crossing method for Mie lidar. Acta Optica Sinica, 30, 3097-3102(2010).

[11] D M Winker, M A Vaughan. Vertical distribution of clouds over Hampton, Virginia observed by lidar under the ECLIPS and FIRE ETO programs. Atmospheric Research, 34, 117-133(1994).

[12] C M Platt, S A Young, A I Carswell et al. The experimental cloud lidar pilot study (ECLIPS) for cloud: Radiation research. Bulletin of the American Meteorological Society, 75, 1635-1654(1994).

[13] C W Yang, W Q Liu, Y J Zhang. Peak and area integral algorithm for retrieving cloud-base height. Infrared and Laser Engineering, 41, 2848-2852(2012).

[14] D W Han, W Q Liu, Y J Zhang et al. Memorable glide window integral algorithm for retrieving cloud height. High Power Laser and Particle Beam, 20, 1-5(2008).

[15] L B Bu, Y Z Zhuang, Z B Xu et al. Differential enhancing method of laser ceilometer for detection of cloud. Infrared and Laser Engineering, 42, 2226-2230(2013).

[16] J Q Zhang, H B Chen, Z Q Li et al. Analysis of cloud layer structure in Shouxian, China using RS92 radiosonde aided by 95 GHz cloud radar. Journal of Geophysical Research: Atmospheres, 115, D00-30(2010).

[17] C F Zhao, Y Z Wang, Q Q Wang et al. A new cloud and aerosol layer detection method based on micropulse lidar measurements. Journal of Geophysical Research: Atmospheres, 119, 6788-6802(2014).

[18] Y Morille, M Haeffelin, P Drobinski et al. STRAT: An automated algorithm to retrieve the vertical structure of the atmosphere from single-channel lidar data. Journal of Atmospheric and Oceanic Technology, 24, 761-775(2007).