气候变化领域集成服务门户(CCPortal): Volume-size distribution of microparticles in ice cores from the Tibetan Plateau

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DOI	10.3189/002214309790152492
	Volume-size distribution of microparticles in ice cores from the Tibetan Plateau
	Wu, Guangjian; Yao, Tandong; Xu, Baiqing; Tian, Lide; Zhang, Chenglong; Zhang, Xuelei
发表日期	2009
ISSN	0022-1430
EISSN	1727-5652
卷号	55 期号:193
英文摘要	The volume distribution of atmospheric dust particles (microparticles) of 1-30 mu m diameter in Muztagata, Dunde, Dasuopu and Everest ice cores from the Tibetan Plateau was measured and fitted as a log-normal function in order to characterize their basic size properties. Our results reveal that whether the volume distribution fits the log-normal function or not largely depends on the dust concentration and the specific dust-storm event but is independent of physiographical location and season. Our results show only high-concentration samples obey the log-normal distribution in volume, with mode sizes ranging from 3 to 16 mu m. The log-normal distribution was largely attributed to the mid-sized particles between 3 and 15 mu m, which contribute most (>70%) of the total volume. The volume size distribution characteristics for mineral dust particles from ice cores reveal that the coarse particles might be common in the upper-level troposphere over the Tibetan Plateau. These dust size features are useful to advance our understanding of dust effects on climate, and provide clues to better characterize atmospheric dynamics over the Tibetan Plateau that will help to improve the current models.
学科领域	Physical Geography; Geology
语种	英语
WOS研究方向	Geography, Physical ; Geosciences, Multidisciplinary
来源期刊	JOURNAL OF GLACIOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111555
作者单位	Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Wu, Guangjian,Yao, Tandong,Xu, Baiqing,et al. Volume-size distribution of microparticles in ice cores from the Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2009,55(193).
APA	Wu, Guangjian,Yao, Tandong,Xu, Baiqing,Tian, Lide,Zhang, Chenglong,&Zhang, Xuelei.(2009).Volume-size distribution of microparticles in ice cores from the Tibetan Plateau.JOURNAL OF GLACIOLOGY,55(193).
MLA	Wu, Guangjian,et al."Volume-size distribution of microparticles in ice cores from the Tibetan Plateau".JOURNAL OF GLACIOLOGY 55.193(2009).