Lidar depolarization measurements for aerosol source and property studies over Chungli (24.58° N, 121.1° E)

被引：7
作者：
Chiang, C. W. [1 ,2 ]
Das, S. K. [2 ]
Nee, J. B. [2 ]
机构：
[1] Acad Sinica, Res Ctr Environm Changes, Nankang, Taiwan
[2] Natl Cent Univ, Dept Phys, Chungli 32054, Taiwan
来源：
ATMOSPHERIC RESEARCH | 2008年 / 90卷 / 2-4期
关键词：
Lidar; Aerosol optical depth; Depolarization ratio;
D O I：
10.1016/j.atmosres.2008.02.002
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
Aerosol depolatization ratio and aerosol optical depth (AOD) were measured at Chungli (24.58 degrees N, 121.1 degrees E), Taiwan during the period from 2002-2004. The depolarization ratios of background aerosol have values mostly less than 0.06. The maximum AOD in the altitude range of 0.7 to 2 km occurs in the summer (June-August) while between 2 and 5 km, the spring (March-May) shows the maximum. The former is mainly related to strong convection and humidity; however the latter is due to anthropogenic aerosols transported from East China and Southeast Asia based on calculations of backward trajectories. This seasonal variation of AOD inferred from different transport mechanisms and aerosol compositions which are supported by the height distributions of aerosol extinction and origins. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：203 / 210
页数：8
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