A wind tunnel simulation of the dynamic processes involved in sand dune formation on the western coast of Hainan Island
文献类型：期刊论文
| 作者 | Li Sen1,2; Liu Xianwan3; Li Huichuan4; Zheng Yinghua5; Wei Xinghu1 |
| 刊名 | JOURNAL OF GEOGRAPHICAL SCIENCES
 |
| 出版日期 | 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 |
| WOS记录号 | WOS:000255193600007 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.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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来源：寒区旱区环境与工程研究所
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