Case Study by Lidar at Downtown of Beijing during the Olympic Games and Other Times

Abstract

Abstract:

In order to study the structural feature of the ABL over downtown of Beijing and the aerosol extinction characteristics in it during the Beijing Olympic Games, ABL over Beijing was observed with a MPL lidar in August, 2008. The vertical distribution of extinction properties and the height of ABL over the observation site were inverted. The observation data was compared with the results of observations in previous years at downtown of Beijing and Beijing Lihua village which was viewed as a role of clean control site. The data indicates that the diurnal variation of ABL over Beijing during the Olympic Games is obvious, it is low in morning and evening, and high at noon time. The ABL height is relatively stable, it is always less than 2.0 km, its average height is 0.79 km. Compared with previous years, the aerosol particle concentration level at downtown of Beijing during the Olympic Games is descended apparently. The aerosol concentration at observation site changes periodically every day.

Key words: lidar, aerosol, atmosphere boundary layer, height

CLC Number:

X831

HAO Lin-Bei, CHENG Shui-Yuan, LI Ming-Jun, CHEN Dong-Sheng, WANG Hai-Yan, YU Tong. Case Study by Lidar at Downtown of Beijing during the Olympic Games and Other Times[J]. Journal of Atmospheric and Environmental Optics, 2009, 4(4): 307-314.

References

[1] Roland B S. An lntroduction to Boundary Layer Meteorology [M]. Ktuwer Academic Publishers, 1988: 2-3.
[2] Hu Fei, Hong Zhongxiang, Lei Xiaoen. Recent process of atmospheric boundary layer physics and atmospheric environment research [J]. Chinese Journal of Atmospheric Sciences, 2003, 27(4): 712-728(in Chinese).
胡非, 洪钟祥, 雷孝恩. 大气边界层和大气环境研究进展 [J]. 大气科学, 2003, 27(4): 712-728.
[3] Spinhirne J D. Geoscience and remote sensing [J]. IEEE Transactions, 1993, 31(1): 48-54.
[4] Han Daowen, Liu Wenqing, Zhang Yujun, et al. Boundary layer aerosol monitoring by lidar at Beijing in winter [J]. Journal of Atmospheric and Environmental Optics, 2007, 2(2): 104-109(in Chinese).
韩道文, 刘文清, 张玉钧, 等. 激光雷达监测北京城区冬季边界层气溶胶 [J]. 大气与环境光学学报, 2007, 2(2): 104-109. [5] Liu Qiang, Wang Mingxing, Li Jing, et al. Present research on atmospheric aerosol and trends [J]. China Power Science and Technology, 1999, 5(3):17-23(in Chinese).
刘强, 王明星, 李晶, 等. 大气气溶胶研究现状和发展趋势 [J]. 中国粉体技术, 1999, 5(3):17-23.
[6] Chen D S, Cheng S Y, Guo X R. An integrated MM5-CMAQ modeling approach for assessing trans-boundary PM10 contribution to the host city of 2008 Olympic summer games-Beijing, China [J]. Atmospheric Environment. 2007, 41(6): 1237~1250.
[7] Ji Fei, Su Wenying, Qin Yu. A study of the gas-to-particle conversion in photochemical process [J]. Chinese Journal of Atmospheric Sciences, 2001,25(2):269-276 (in Chinese).
纪飞, 苏文颖, 秦瑜. 对流层光化学过程中的气粒转化研究 [J]. 大气科学, 2001, 25(2): 269-276.
[8] Qian Yongfu. Study of climate effect of PBL aerosol [J]. Journal of Nanjing Institute of Meteorology, 1994, 17(2): 141-147(in Chinese).
钱永甫. 边界层气溶胶气候效应的研究 [J]. 南京气象学院学报, 1994, 17(2): 141-147.
[9] Mok T M, Rudowicz C Z. A lidar study of the atmospheric entrainment zone and mixed layer over Hung Kong [J]. Atmospheric Research, 2004, 69: 147-163.
[10] Fernald F G. Analysis of atmospheric lidar observation: some comments [J]. Appl. Opt., 1984, 23(5): 652-655.
[11] Wang Zhenzhu, Li Ju, Zhong Zhiqing, et al. LIDAR exploration of atmospheric boundary layer over downtown of Beijing in summer [J]. Journal of Applied Optics, 2008, 29(1): 96-100(in Chinese).
王珍珠, 李炬, 钟志庆, 等.激光雷达探测北京城区夏季大气边界层 [J]. 应用光学, 2008, 29(1): 96-100.

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