Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR026800 |
River Dunes and Tidal Sand Waves: Are They Generated by the Same Physical Mechanism? | |
Vittori, G.; Blondeaux, P. | |
2020-05-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2020 |
卷号 | 56期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy |
英文摘要 | Many subaerial and subaqueous morphological patterns are repetitive both in space and time, and a characteristic wavelength L and a characteristic period T can be associated with the bottom forms, along with a migration speed c(r)=L/T. In this contribution we focus our attention on river dunes, which form under steady flows, and on tidal sand waves, which form under oscillatory flows. Now, it is widely accepted that these bedforms arise because of the instability of the plane interface between the riverbed/seabed, made up of cohesionless sand, and the water flowing over it. However, the physical mechanisms commonly suggested to explain the growth of these two bottom forms differ. In the present contribution, the theories of formation of river dunes and sand waves, based on modal stability analysis, are revisited, and it is shown that the different physical mechanisms proposed to explain the formation of river dunes and sand waves exhibit more similarity than was believed until today. |
英文关键词 | morphological patterns river dunes tidal sand waves |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000537736400026 |
WOS关键词 | SUSPENDED-LOAD TRANSPORT ; SEA WAVES ; RIPPLES |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/280665 |
专题 | 资源环境科学 |
作者单位 | Univ Genoa, Dept Civil Chem & Environm Engn, Genoa, Italy |
推荐引用方式 GB/T 7714 | Vittori, G.,Blondeaux, P.. River Dunes and Tidal Sand Waves: Are They Generated by the Same Physical Mechanism?[J]. WATER RESOURCES RESEARCH,2020,56(5). |
APA | Vittori, G.,&Blondeaux, P..(2020).River Dunes and Tidal Sand Waves: Are They Generated by the Same Physical Mechanism?.WATER RESOURCES RESEARCH,56(5). |
MLA | Vittori, G.,et al."River Dunes and Tidal Sand Waves: Are They Generated by the Same Physical Mechanism?".WATER RESOURCES RESEARCH 56.5(2020). |
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