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Characteristic analysis of atmospheric boundary layer and particulate matter in Beijing
Author(s): Tan Min; ChenBo Xie; Bangxin Wang; Zhen Shang; Yingjian Wang
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Paper Abstract

Raman lidar has been designed for the measurement of vertical and temporal distribution of aerosol optical properties, atmospheric temperature and water vapor. In order to investigate characteristics of aerosol boundary layer (ABL) height in Beijing, the lidar system had been installed in the University of Chinese academy of sciences from November 2014 to January 2015. The data obtained by Raman lidar have been used to derive the ABL height (ABLH) based on the gradient method and the ABL height is compared with particulate matter (PM) data provided by the Ministry of Environmental Protection of the People’s Republic of China. A total of 15 days of haze, 27 days of pollution and 24 days of clean occurred through the entire period of observation. On haze, pollution and clean days, the average ABLH were 0.6~0.9 km, 0.9~1.3 km and 1~1.9 km, respectively. In contrast to clean days, haze days have lower ABLH, and gradient changes are faster. The measurement results show the height of ABL has a negative correlation with the concentration of surface PM. The rate of PM concentration variations increase gradually with the height of ABL in clean, pollution and haze days. The rate of PM2.5 average concentration in haze days (-242.4 μg·m-3 /km) is more than 2 times than the rate in pollution days (-114.8 μg·m-3 /km), 3 times than the rate in clean days (-77.4 μg·m-3 /km). The rate of PM10 average concentration in haze days (- 224.2 μg·m-3 /km) is more than 2 times than the rate in pollution (-117.6 μg·m-3 /km) and clean days (-90.4 μg·m-3 /km).

Paper Details

Date Published: 24 October 2017
PDF: 8 pages
Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 104572X (24 October 2017); doi: 10.1117/12.2284967
Show Author Affiliations
Tan Min, Anhui Institute of Optics and Fine Mechanics (China)
Univ. of Science and Technology of China (China)
ChenBo Xie, Anhui Institute of Optics and Fine Mechanics (China)
Bangxin Wang, Anhui Institute of Optics and Fine Mechanics (China)
Univ. of Science and Technology of China (China)
Zhen Shang, Anhui Institute of Optics and Fine Mechanics (China)
Univ. of Science and Technology of China (China)
Yingjian Wang, Anhui Institute of Optics and Fine Mechanics (China)
Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 10457:
AOPC 2017: Laser Components, Systems, and Applications
Shibin Jiang; Lijun Wang; Lan Jiang; Long Zhang, Editor(s)

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