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	The airflow field and dynamic processes of pyramid dunes
	Zhang, WM; Qu, JJ; Dong, ZB; Li, XZ; Wang, WF
刊名	JOURNAL OF ARID ENVIRONMENTS
	2000-08-01
卷号	45期号:4页码:357-368
关键词	pyramid dunes wind tunnel experiments sedimentary structures local air circulation
ISSN号	0140-1963
通讯作者	Zhang, WM()
英文摘要	Dune sedimentary structure and wind tunnel experimental results show that the pyramid dunes on the cliff top surface of Dunhuang Mogao Grottoes are formed under three wind directions (NE, SW and NW); the deformation and separation variety of chain dune. The local air circulation (SW) is key to the development of the pyramid dunes. Analysing the morphological dynamic processes indicates that inherent relations exist between trihedral pyramid dunes and other complex sand dune types (linear, reticulate and polyhedral pyramid dunes). The wind regime of multidirection, in conjunction with the connected main and subsidiary sand ridges, resulted in the geomorphological forms adapted to the near-surface air streams. It is concluded that integrated studies, including sedimentary structures and wind tunnel experiments, can make more efficient contributions to an overall, systematic and thorough understanding of the developmental processes of the pyramid dunes than previously used single-study methods. (C) 2000 Academic Press.
收录类别	SCI
WOS关键词	STAR DUNES ; SAND DUNE
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology ; Environmental Sciences
语种	英语
出版者	ACADEMIC PRESS LTD
WOS记录号	WOS:000089595300006
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557984
专题	寒区旱区环境与工程研究所
通讯作者	Zhang, WM
作者单位	1.Chinese Acad Sci, Desert Res Inst, Lanzhou, Peoples R China 2.Inst Dunhuang Res, Dunhuang 736200, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, WM,Qu, JJ,Dong, ZB,et al. The airflow field and dynamic processes of pyramid dunes[J]. JOURNAL OF ARID ENVIRONMENTS,2000,45(4):357-368.
APA	Zhang, WM,Qu, JJ,Dong, ZB,Li, XZ,&Wang, WF.(2000).The airflow field and dynamic processes of pyramid dunes.JOURNAL OF ARID ENVIRONMENTS,45(4),357-368.
MLA	Zhang, WM,et al."The airflow field and dynamic processes of pyramid dunes".JOURNAL OF ARID ENVIRONMENTS 45.4(2000):357-368.

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