Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1007/978-3-030-01452-0_81 |
| Aeolian Sand Transport Rate Over Windward and Lee Slopes of Small Reversing Dunes, Southern Morocco | |
| Dluzewski, Maciej; Rotnicka, Joanna | |
| 通讯作者 | Dluzewski, M (corresponding author), Univ Warsaw, Fac Geog & Reg Studies, Krakowskie Przedmiescie 30, PL-00927 Warsaw, Poland. |
| 会议名称 | 1st Springer Conference of the Arabian-Journal-of-Geosciences (CAJG) |
| 会议日期 | NOV 12-15, 2018 |
| 会议地点 | Hammamet, TUNISIA |
| 英文摘要 | Several factors affect the aeolian sand transport rate over reversing dunes. In arid zone poor in vegetation, the most important factors are effective wind direction in relation to the dune crest and the inclination of the windward slope. The objective of this paper is to analyze the variation in sand transport rate over such dunes under wind events differing in the direction of the incident wind including winds blowing from the direction of the former lee side. The research was carried out in the dune field of the Coude du Dra region (southern Morocco) where small reversing dunes, up to 3 m high, are numerous. In the case of wind blowing from the direction of low-angle slope, the sand transport rate increased tenfold between dune toe and crest when wind speed was well above the threshold value and around 25 times when wind speed was slightly greater than the threshold value. When the wind direction reversed and the steep lee slope became a windward slope, the sand transport rate at the dune crest was greater than in the previous case. It was caused by strong sand deflation that occurred at the dune crest due to its kinked profile. |
| 英文关键词 | Aeolian sand transport Reversing dunes Amplification factor |
| 来源出版物 | PALEOBIODIVERSITY AND TECTONO-SEDIMENTARY RECORDS IN THE MEDITERRANEAN TETHYS AND RELATED EASTERN AREAS |
| ISSN | 2522-8714 |
| EISSN | 2522-8722 |
| 出版年 | 2019 |
| 页码 | 339-341 |
| ISBN | 978-3-030-01452-0; 978-3-030-01451-3 |
| 出版者 | SPRINGER INTERNATIONAL PUBLISHING AG |
| 类型 | Proceedings Paper |
| 语种 | 英语 |
| 收录类别 | CPCI-S |
| WOS记录号 | WOS:000619257500079 |
| WOS关键词 | SEDIMENT TRANSPORT ; FLOW ; FLUX |
| WOS类目 | Geology ; Paleontology |
| WOS研究方向 | Geology ; Paleontology |
| 资源类型 | 会议论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/370226 |
| 作者单位 | [Dluzewski, Maciej] Univ Warsaw, Fac Geog & Reg Studies, Krakowskie Przedmiescie 30, PL-00927 Warsaw, Poland; [Rotnicka, Joanna] Adam Mickiewicz Univ, Inst Geol, Bogumila Krygowskiego 12, PL-61860 Poznan, Poland |
| 推荐引用方式 GB/T 7714 | Dluzewski, Maciej,Rotnicka, Joanna. Aeolian Sand Transport Rate Over Windward and Lee Slopes of Small Reversing Dunes, Southern Morocco[C]:SPRINGER INTERNATIONAL PUBLISHING AG,2019:339-341. |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
