气候变化领域集成服务门户(CCPortal): Numerical analysis for contribution of the Tibetan Plateau to dust aerosols in the atmosphere over the East Asia

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DOI	10.1007/s11430-012-4460-x
	Numerical analysis for contribution of the Tibetan Plateau to dust aerosols in the atmosphere over the East Asia
	Mao Rui; Gong DaoYi; Shao YaPing; Wu GuangJian; Bao JingDong
通讯作者	Mao, R (通讯作者)
发表日期	2013
ISSN	1674-7313
起始页码	301
结束页码	310
卷号	56 期号:2
英文摘要	Although the Tibetan Plateau is widely thought as a potential dust source to the atmosphere over East Asia, little is known about the temporal changes of Tibetan dust activities and Tibetan dust source strength. In this study, we address these two issues by analyzing dust storm frequencies and aerosol index through remote sensing data and by means of numerical simulation. The findings indicate that monthly dust profiles over the Tibetan Plateau vary significantly with time. Near the surface, dust concentration increases from October, reaches its maximum in February-March, and then decreases. In the middle to upper troposphere, dust concentration increases from January, reaches its maximum in May-June, and decreases thereafter. Although Tibetan dust sources are important contributors to dust in the atmosphere over the Tibetan Plateau, their contribution to dust in the troposphere over eastern China is weaker. The contribution of Tibetan dust sources to dust in the atmosphere over the Tibetan Plateau decreases sharply with height, from 69% at the surface, 40% in the lower troposphere, and 5% in the middle troposphere. Furthermore, the contribution shows seasonal changes, with dust sources at the surface at approximately 80% between November and May and 45% between June and September; in the middle and upper troposphere, dust sources are between 21% from February to March and less than 5% in the other months. Overall, dust aerosols originating from the Tibetan Plateau contribute to less than 10% of dust in East Asia.
关键词	TRANS-PACIFIC TRANSPORT ARCTIC OSCILLATION SIMULATED CLIMATOLOGY NORTH CHINA CALIPSO PRECIPITATION CONNECTIONS VALIDATION PREDICTION FREQUENCY
英文关键词	Tibetan Plateau; dust aerosol; aerosol index; numerical dust modeling; dust sources
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000314271300012
来源期刊	SCIENCE CHINA-EARTH SCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258157
推荐引用方式 GB/T 7714	Mao Rui,Gong DaoYi,Shao YaPing,et al. Numerical analysis for contribution of the Tibetan Plateau to dust aerosols in the atmosphere over the East Asia[J]. 中国科学院青藏高原研究所,2013,56(2).
APA	Mao Rui,Gong DaoYi,Shao YaPing,Wu GuangJian,&Bao JingDong.(2013).Numerical analysis for contribution of the Tibetan Plateau to dust aerosols in the atmosphere over the East Asia.SCIENCE CHINA-EARTH SCIENCES,56(2).
MLA	Mao Rui,et al."Numerical analysis for contribution of the Tibetan Plateau to dust aerosols in the atmosphere over the East Asia".SCIENCE CHINA-EARTH SCIENCES 56.2(2013).