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
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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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