ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 42 Issue 12 > 2016,42(12):1540-1546. DOI:10.7519/j.issn.1000-0526.2016.12.012 Prev Next
Analyses on SandDust Aerosol Properties with Ceilometer in Beijing
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Abstract:
Continuous observation was made with the help of ceilometers on the sanddust weather processes in Beijing in the spring of 2015. By using the observation data and the conventional ground meteorological elements, visibility and the changes of PM10 particulate mass concentration, this paper analyzes the spatiotemporal distribution characteristics of aerosol backscatter coefficients in the three weather phenomena of floating dust, blowing sand and dust storm during the two sanddust weather processes. In addition, the paper conducts the correlation analysis on the backscatter coefficient of ceilometers and the PM10 particulate mass concentration as well. The results indicate that ceilometers have the ability of monitoring the vertical distribution of aerosol particles. During the process of blowing sand and dust storm, backscatter coefficient decreases with the increase of height. What’s more, the correlation coefficients between the backscatter coefficient and PM10 particulate mass concentration at the height of 10 m, 50 m and 100 m are all above 0.82.
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