干旱区生态环境知识资源中心(Arid): 中国不同地区气溶胶消光特性分析

Arid

	中国不同地区气溶胶消光特性分析
其他题名	Analysis of the Aerosol Extinction Characteristics in Different Areas of China
	Zhang Junhua; Mao Jietai; Wang Meihua
来源期刊	Advances in Atmospheric Sciences
ISSN	0256-1530
出版年	2002
卷号	19 期号:1 页码:136-152
中文摘要	利用多波段太阳光度计在中国四个点(北京的密云,广东的新丰,青海的瓦里关,西藏的当雄)观测了 450-900 nm范围中多波长气溶胶光学厚度和Angstrom指数.本文分析了这些参数从1998年2月到1999年1月这一年中的特点.结果表明,在干旱和半干旱地区,如密云(117.12°E, 40.65°N)和瓦里关(100.90°E,36.29°N),春季出现气溶胶光学厚度的最大值,大约是其它季节的2倍.在湿润地区,如新丰(114.2°E, 24.5°N),虽然春季气溶胶光学厚度值也是最大,但只是比其它季节稍微大一些瓦里关春季的Angstrom指数有最小值,约0 l 5,表明有比较大的粒子.密云和新丰的Angst rom指数也有很大的月际变化,但没有明显的季节倾向.这表明,气溶胶的源比较复杂.
英文摘要	The multi-wavelength aerosol optical depths and the Angstrom exponent between 450 nm and 900 nm in four locations of China (Miyun, Beijing; Xinfeng, Guangdong; Waliguan, Qinghai and Damxung, Tibet)have been observed by sun-photometers. This paper analyzes their characteristics for a one-year period from February 1998 to January 1999. The results show that in the arid and semi-arid locations like Miytun (117.12°E, 40.65°N) and Waliguan (100.90°E, 36.29°N), there is a maximum of aerosol optical depth in the spring, it is about twice as large as in any other season. In a humid region like Xinfeng (114.2°E, 24.5°N), theaerosol optical depth also has a maximum in the spring, however it is only slightly larger than in other sea sons. The Angstrom exponent shows a significant minimum at Waliguan in spring, about 0.15, indicating relatively large dust aerosol particles. Large variability of the monthly mean Angstrom exponent is also found in Miyun and Xinfeng, but there is no tendency with seasons. It means that the source of aerosol in these locations is complicated.
中文关键词	太阳光度计 ; 气溶胶 ; 消光特征
英文关键词	sun-photometer eerosol extinction characteristics
类型	Article
语种	英语
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:1367019
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203012
作者单位	张军华, Beijing 100871, China.; 毛节泰, Beijing 100871, China.; 王美华, Beijing 100871, China.
推荐引用方式 GB/T 7714	Zhang Junhua,Mao Jietai,Wang Meihua. 中国不同地区气溶胶消光特性分析[J],2002,19(1):136-152.
APA	Zhang Junhua,Mao Jietai,&Wang Meihua.(2002).中国不同地区气溶胶消光特性分析.Advances in Atmospheric Sciences,19(1),136-152.
MLA	Zhang Junhua,et al."中国不同地区气溶胶消光特性分析".Advances in Atmospheric Sciences 19.1(2002):136-152.