干旱区生态环境知识资源中心(Arid): 利用激光雷达观测兰州沙尘气溶胶辐射特性

Arid

	利用激光雷达观测兰州沙尘气溶胶辐射特性
其他题名	Lidar Measurement of Dust Aerosol Radiative Property over Lanzhou
	曹贤洁; 张镭; 周碧; 鲍婧; 史晋森; 闭建荣
ISSN	1000-0534
出版年	2009
卷号	28 期号:5 页码:1115-1120
中文摘要	利用微脉冲激光雷达CE370-2与太阳光度计CE-318, 在兰州观测分析了2007年3月27～29日扬沙过程沙尘气溶胶辐射特性, 并利用HYSPLIT-4模式分析了沙尘过程气溶胶粒子的后向轨迹.分析表明, 此沙尘过程气溶胶粒子的传输路径主要有两条: 一条起源于青海西北经西宁抵兰州, 另一条起源于塔克拉玛干沙漠经河西走廊抵兰州;沙尘气溶胶主要集中于离地1.5 km高度层内;沙尘气溶胶消光系数随高度先增加, 到0.2 km左右高度达到最大, 然后急剧减小.沙尘气溶胶光学厚度的时间演变呈双峰型, 最高峰出现在28日12:00, 次高峰在27日22:00.验证表明由CE370-2得到的气溶胶光学厚度与CE-318得到的很接近;雷达观测资料的处理方法可以较好地反演气溶胶消光系数和光学厚度.
英文摘要	The radiative properties of dust aerosol were analyzed through a blowing dust event happened over Lanzhou on March 27～29, 2007 using the micropulse lidar CE370-2 and the sun photometer CE-318. The lidar data processing method was mainly based on the Fernald algorithm and Klett algorithm. The analyses showed that it had two transport paths of the aerosol particles in the dust event computed from the HYSPLIT-4 model, of which the first was originated in the northwestern area of Qinghai Province and then arrived in Lanzhou via Xinin and the other was originated in Taklimakan Desert and then arrived in Lanzhou via Hexi Corridor; the dust aerosol was mainly concentrated in the layer below 1.5 km in height, and the dust aerosol extinction coefficient increased with height, till reached the maximum value at about 0.2 km, then it decreased rapidly. As to the temporal evolution of dust aerosol optical depth (AOD) property, it had bi-peaks, of which the peak appeared at 12:00 of Mar. 28 and the sub-peak was at 22:00 on March 27. Finally the validation showed that the AOD retrieved from CE370-2 was very close to that from CE-318, and the lidar data processing method performed well in the retrieval of aerosol extinction coefficient and AOD.
中文关键词	兰州 ; 沙尘气溶胶 ; 激光雷达 ; 太阳光度计 ; 消光系数 ; 光学厚度
英文关键词	Hysplit Lanzhou Dust aerosol Lidar Sun photometer Extinction coefficient AOD Hysplit
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:3724455
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223753
作者单位	兰州大学,大气科学学院, 半干旱气候变化教育部重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	曹贤洁,张镭,周碧,等. 利用激光雷达观测兰州沙尘气溶胶辐射特性[J]. 兰州大学,2009,28(5):1115-1120.
APA	曹贤洁,张镭,周碧,鲍婧,史晋森,&闭建荣.(2009).利用激光雷达观测兰州沙尘气溶胶辐射特性.,28(5),1115-1120.
MLA	曹贤洁,et al."利用激光雷达观测兰州沙尘气溶胶辐射特性".28.5(2009):1115-1120.