干旱区生态环境知识资源中心(Arid): 额济纳地区沙尘气溶胶质量浓度特征初步分析

Arid

	额济纳地区沙尘气溶胶质量浓度特征初步分析
其他题名	Characteristics of Mass Concentration of Dust-aerosols over the Ejin Region
	周茅先 1; 刘立超 1; 肖洪浪1 ; 贞代矢吹 2; 胡延荣 3; 罗小蔚 3; 郭兴福 3
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2005
卷号	28 期号:4 页码:484-489
中文摘要	为更好地理解亚洲沙尘源区气溶胶特征,在巴丹吉林沙漠边缘额济纳地区进行了野外观测.通过对沙尘源区之一的额济纳地区沙尘气溶胶的长期监测,获得了其区域代表性沙尘气溶胶理化特征.其TSP年变化以5月最大,9月最小,这与气象条件密切相关.针对典型天气过程的观测结果表明,不同天气条件(背景大气、浮尘、扬沙和沙尘暴)下TSP浓度存在倍数关系和量级的差异,其质量浓度随粒径的分布特征也明显不同.总体上讲,额济纳地区清洁大气中沙尘气溶胶浓度量级为102mug/m3,而浮尘,扬沙及沙尘暴期间沙尘气溶胶质量浓度量级为102 mug/m3,超强沙尘暴沙尘质量浓度可达量级为104mug/m3,在不同风向影响下,气溶胶粒径分布呈现不同特征;与沙坡头、敦煌地区相比,具有其独特的区域特性.
英文摘要	In order to further understand the mineral aerosols in Asian dust source regions, a field measurement of dust-aerosols was carried out in the Ejin region located in the marginal zone of the Badain Juran Desert. By a long-term observation of dust-aerosols in the Ejin region as one of dust source regions, some parameters of the physical and chemical properties of dust-aerosols and of the mass concentrations of dust-aerosols are obtained. The results show that the mass concentration of dust-aerosols in May is the highest but the lowest in September, which is closely related to the meteorological conditions. The observed results during the typical weather processes reveal that there is a diploid relation and a magnitude difference in TSP mass concentration under the different weather conditions, such as the background atmosphere, floating dust, blowing sand and dust storm, and the granular distribution of sand-dust grains is different from the different weather conditions. Generally, the order of magnitude of mass concentration on clear days is 10 u.g/nr and 10" ug/m under the weather conditions of floating dust, blowing sand and dust storm. However, it can be up to 104 ug/m3 during severe dust storms. Granular distribution of aerosols is different under the effects of different wind directions, and there are the peculiar characteristics in granular distribution of aerosols compared with that in the Shapotou and Dunhuang regions.
中文关键词	沙尘气溶胶 ; 质量浓度 ; 沙尘暴 ; 额济纳
英文关键词	dust-aerosol mass concentration dust storm Ejin region
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:2013107
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206163
作者单位	1.中国科学院寒区旱区环境与工程研究所, 兰州, 甘肃 730000, 中国; 2.日本理化学研究所表面解析研究室, 和光, 日本; 3.内蒙古额济纳旗气象局, 额济纳, 内蒙古 735400, 中国
推荐引用方式 GB/T 7714	周茅先,刘立超,肖洪浪,等. 额济纳地区沙尘气溶胶质量浓度特征初步分析[J]. 中国科学院西北生态环境资源研究院,2005,28(4):484-489.
APA	周茅先.,刘立超.,肖洪浪.,贞代矢吹.,胡延荣.,...&郭兴福.(2005).额济纳地区沙尘气溶胶质量浓度特征初步分析.干旱区地理,28(4),484-489.
MLA	周茅先,et al."额济纳地区沙尘气溶胶质量浓度特征初步分析".干旱区地理 28.4(2005):484-489.