| 光谱学与光谱分析 |
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| Inversion Results of the Atmospheric Environment Detecting Airborne Lidar in Qingdao, Bohai and Yellow Sea Area |
| MAO Min-juan1,2,ZHANG Yin-chao1,FANG Hai-tao1,QI Fu-di1,SHAO Shi-sheng1,HU Huan-ling1,ZHOU Jun1 |
1. Key Lab of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
2. Zhejiang Meteorology Science Institute, Hangzhou 310020, China |
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Abstract Without the hypothesis of atmospheric parameters and auxiliary equipment, it is proven the slope method is capable of deriving extinction coefficients profiles and atmosphere optical depth through the analysis of the atmospheric environment detecting airborne lidar (AEDAL) data collected during November 7 to 11, 2005. The spatial and temporal variations of the planet boundary layer (PBL), aerosol optical depth (AOD) of the PBL and aerosol distribution along flight lines are exhibited from the AEDAL inversion results. Firstly, the sinking of aerosol was found in Yellow Sea area, moreover, the PBL altitude also dropped while the multi-layer aerosol presented after a cold front passage; secondly, the AOD of the PBL is the highest over Qingdao city, the lowest over foothill area and in between them over sea area, Meanwhile, it is relatively stable over sea area but slightly increases nearby upslope. The AOD values of the PBL were determined to be 0.15-0.35 in clear day and 0.3-0.45 in foggy day over the area from Qingdao to Bohai, but they are higher and reach around 0.55 in Yellow Sea area. It is evidenced that the aerosol in the PBL mainly comes from city and also is contributed by salt sea over Qingdao area, and ridge and surface wind play an important role in the aerosol transport while the monsoon affects the aerosol distribution.
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Received: 2006-11-05
Accepted: 2007-02-26
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Corresponding Authors:
MAO Min-juan
E-mail: mayammj@mail.ustc.edu.cn
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