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	A wind tunnel simulation of the dynamic processes involved in sand dune formation on the western coast of Hainan Island
	Li Sen1,2; Liu Xianwan3; Li Huichuan4; Zheng Yinghua5; Wei Xinghu1
刊名	JOURNAL OF GEOGRAPHICAL SCIENCES
	2007-11-01
卷号	17期号:4页码:453-468
关键词	western coast of Hainan Island coastal dune surface airflow dynamic processes wind tunnel simulation
ISSN号	1009-637X
DOI	10.1007/s11442-007-0453-7
通讯作者	Li Sen(fslisen@163.com)
英文摘要	The western coast of Hainan Island exhibits a savanna landscape. Many types of sand dunes, including transverse dune ridges, longitudinal dune ridges, elliptical dunes, coppice dunes, and climbing dunes, are widely distributed in the coastal zone. In winter, high-frequency and high-energy NE winds (dominant winds) are prevalent, with a resultant drift direction (RDD) of S35.6 degrees W. In spring, low-frequency and low-energy SW secondary winds prevail, with a RDD of N25.1 degrees E. Wind tunnel simulations revealed that the airflow over the dune surface is the main factor controlling the erosion and deposition patterns of dune surfaces and the morphological development of dunes. In the region's bidirectional wind environment, with two seasonally distinct energy levels, the airflow over the surface of elliptical dunes, barchan dunes, and transverse dune ridges will exhibit a transverse pattern, whereas the airflow over longitudinal dunes ridges exhibits a lateral pattern and that over climbing dunes exhibits a climbing-circumfluent pattern. These patterns represent different dynamic processes. The coastal dunes on the western coast of Hainan Island are influenced by factors such as onshore winds, sand sources, coastal slopes, rivers, and forest shelter belts. The source of the sand that supplements these dunes particularly influences the development pattern: when there is more sand, the pattern shows positive equilibrium deposition between dune ridges and dunes; otherwise, it shows negative equilibrium deposition. The presence or absence of forest shelter belts also influences deposition and dune development patterns and transformation of dune forms. Coastal dunes and inland desert dunes experience similar dynamic processes, but the former have more diversified shapes and more complex formation mechanisms.
收录类别	SCI
WOS研究方向	Geology
WOS类目	Geology
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000255193600007
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2555893
专题	寒区旱区环境与工程研究所
通讯作者	Li Sen
作者单位	1.Foshan Univ, Inst Resources & Environm Sci, Foshan 528000, Guangdong, Peoples R China 2.NW Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China 3.CAS, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730070, Peoples R China 4.Bur Land & Resources Foshan City, Shunde Branch, Shunde 528300, Guangdong, Peoples R China 5.Beijing Normal Univ, Coll Resources Sci & Technol, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Li Sen,Liu Xianwan,Li Huichuan,et al. A wind tunnel simulation of the dynamic processes involved in sand dune formation on the western coast of Hainan Island[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2007,17(4):453-468.
APA	Li Sen,Liu Xianwan,Li Huichuan,Zheng Yinghua,&Wei Xinghu.(2007).A wind tunnel simulation of the dynamic processes involved in sand dune formation on the western coast of Hainan Island.JOURNAL OF GEOGRAPHICAL SCIENCES,17(4),453-468.
MLA	Li Sen,et al."A wind tunnel simulation of the dynamic processes involved in sand dune formation on the western coast of Hainan Island".JOURNAL OF GEOGRAPHICAL SCIENCES 17.4(2007):453-468.

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