[2] Schirber S, Manzini E, Krismer T, et al. The quasi-biennial oscillation in a warmer climate: sensitivity to different gravity wave parameterizations [J]. Climate Dynamics, 2015, 45(3-4): 825-836.
[3] Li T, She C Y, Liu H L, et al. Sodium lidar–observed strong inertia‐gravity wave activities in the mesopause region over Fort Collins, Colorado (41° N, 105° W) [J]. Journal of Geophysical Research: Atmospheres, 2007, 112(D22): 104-1.
[4] Zhang S D, Yi F, Huang C M, et al. Latitudinal and altitudinal variability of lower atmospheric inertial gravity waves revealed by US radiosonde data[J]. Journal of Geophysical Research: Atmospheres, 2013, 118(14): 7750-7764.
[5] Kramer R, Wüst S, Schmidt C, et al. Gravity wave characteristics in the middle atmosphere during the CESAR campaign at Palma de Mallorca in 2011/2012: Impact of extratropical cyclones and cold fronts [J]. Journal of Atmospheric and Solar-Terrestrial Physics, 2015, 128(5): 8-23.
[6] Gong S, Zeng X, Xue X, et al. First time observation of sodium layer over Wuhan, China by sodium fluorescence lidar [J]. Science in China Series A: Mathematics, 1997, 40(11): 1228-1232.
[7] Yi F, Zhang S, Zeng H, et al. Lidar observations of sporadic Na layers over Wuhan (30.5° N, 114.4° E) [J]. Geophysical Research Letters, 2002, 29(9): 59-1.
[8] Dou X K, Xue X H, Chen T D, et al. A statistical study of sporadic sodium layer observed by sodium lidar at Hefei (31.8 N, 117.3 E)[J]. Annales Geophysicae, 2009, 27(6): 2247-2257.
[9] Xue X H, Dou X K, Lei J, et al. Lower thermospheric‐enhanced sodium layers observed at low latitude and possible formation: Case studies[J]. Journal of Geophysical Research: Space Physics, 2013, 118(5): 2409-2418.
[10] She C Y, Sherman J, Yuan T, et al. The first 80-hour continuous lidar campaign for simultaneous observation of mesopause region temperature and wind[J]. Geophysical Research Letters, 2003, 30(6): 52.
[11] Gardner C S, Voelz D G. Lidar studies of the nighttime sodium layer over Urbana, Illinois: 2. Gravity waves[J]. Journal of Geophysical Research: Space Physics, 1987, 92(A5): 4673-4694.
[12] Beatty T J, Hostetler C A, Gardner C S. Lidar observations of gravity waves and their spectra near the mesopause and stratopause at Arecibo[J]. Journal of the Atmospheric Sciences, 1992, 49(6): 477-496.
[13] Collins R L, Hallinan T J, Smith R W, et al. Lidar observations of a large high‐altitude sporadic Na layer during active aurora[J]. Geophysical Research Letters, 1996, 23(24): 3655-3658.
[14] Yang G, Clemesha B, Batista P, et al. Gravity wave parameters and their seasonal variations derived from Na lidar observations at 23 S[J]. Journal of Geophysical Research: Atmospheres, 2006, 111(D21): 107-1.
[15] Yang G, Clemesha B, Batista P, et al. Lidar study of the characteristics of gravity waves in the mesopause region at a southern low-latitude location[J]. Journal of Atmospheric and Solar-Terrestrial Physics, 2008, 70(7): 991-1011.
[16] Ai Yong, Lu Shu, Zhang Xunjie, et al. Lidar observations of gravity wave activity and spectra in the mesopause region at Wuhan, China [J]. Science in China Series A: Mathematics, 1998, 28(9): 818-822
[17] Song Juan, Cheng Xuewu, Yang Guotao, et al. The investigation of gravity wave activities on mesopause over Wuhan by sodium lidar[J]. Chin J Sapce Sci, 2005, 25(6): 522-528. (in Chinese)
[18] Gong S, Yang G, Xu J, et al. Statistical characteristics of atmospheric gravity wave in the mesopause region observed with a sodium lidar at Beijing, China[J]. Journal of Atmospheric and Solar-Terrestrial Physics, 2013, 97(5): 143-151.
[20] Zou Xu, Yang Guotao, Wang Jihong, et al. Gravity wave parameters and their seasonal variatins derived from Na lidar observations at Hainan,China [J]. Chinese J Geophys, 2015, 58(7): 2274-2282. (in Chinese)
[21] Hu X, Yan Z A, Guo S Y, et al. Sodium fluorescence Doppler lidar to measure atmospheric temperature in the mesopause region[J]. Chinese Science Bulletin, 2011, 56(4-5): 417-423.
[22] Yan Zhaoai. Research on sodium fluorescence Doppler lidar system[D]. Beijing: Graduate School of Chinese Academy of Sciences, 2010. (in Chinese)
[23] Fang Xin. Sodium temperature and wind lidar development and gravity wave momentum flux observation [D]. Hefei: University of Science and Technology of China, 2012. (in Chinese)
[24] Li T, Fang X, Liu W, et al. Narrowband sodium lidar for the measurements of mesopause region temperature and wind[J]. Applied Optics, 2012, 51(22): 5401-5411.
[25] Yang W M. Gravity wave studies of the mesopause region using a Na wind/temperature lidar[D]. Illinois: University of Illinois,1998.
[26] Hu X, Liu A Z, Gardner C S, et al. Characteristics of quasi-monochromatic gravity waves observed with Na lidar in the mesopause region at Starfire Optical Range, NM[J]. Geophysical Research Letters, 2002, 29(24): 22-1-22-4.
[27] Xu Li, Hu Xiong, Yan Zhaoai, et al. Retrieval method of atmospheric parameters for a Sodium Doppler lidar [J]. Infrared and Laser Engineering, 2009, 38(1): 140-143. (in Chinese)
[28] Xu Li, Hu Xiong, Cheng Yongqiang, et al. Simulation of echo-photon counts of a Sodium Doppler lidar and retrievals of atmospheric parameters[J] . Chinese J Geophys, 2010, 53(7): 1520-1528. (in Chinese)
[29] Zhang S D, Yi F. A statistical study of gravity waves from radiosonde observations at Wuhan (30 N, 114 E) China[J].Annales Geophysicae, 2005, 23(3): 665-673.
[30] Allen S J, Vincent R A. Gravity wave activity in the lower atmosphere: Seasonal and latitudinal variations[J]. Journal of Geophysical Research: Atmospheres, 1995, 100(D1): 1327-1350.
[31] Gardner C S, Taylor M J. Observational limits for lidar, radar and airglow imager measurements of gravity wave parameters[J]. Journal of Geophysical Research, 1998, 103(D6): 6427-6437.