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Jun Zhou,Anyuan Fan,Cha Hyungki,Dong Liu,Dukhyeon Kim,Fudi Qi,Guangyu Shi,Guming Yue 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.1
A Mie lidar has been used to make observations of Asian dust over Hefei (31.90 N, 117.16 E) in the every spring month since the year of 1998. This paper presents the main features of the vertical distribution and the temporal variation of the Asian dust extinction coefficient at a 532-nm wavelength during seven years. There were two kinds of vertical distributions of Asian dust extinction coefficients. One kind of distribution indicated that the Asian dust particles intruded into the local boundary layer, causing a very thick dust layer with depth of about 3 4 km. The other one showed that the Asian dust passed over Hefei area above the boundary layer. The aerosol extinction coefficients in the elevated dust layer within the middle troposphere from 3 to 6 km were unusually large. Seasonally averaged aerosol extinction coefficient profiles showed that larger aerosol extinction coefficients were observed in the altitude range from 1 km to 10 km in the springtime than in any other season.쯢