Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL083527 |
The Closure of a Shallow Tidal Inlet Promoted by Infragravity Waves | |
Bertin, Xavier1; Mendes, Diogo2,3,4; Martins, Kevin1,5; Fortunato, Andre B.3; Lavaud, Laura1 | |
2019-06-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:12页码:6804-6810 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Portugal |
英文摘要 | Tidal inlets connect the ocean to inner water bodies and are present worldwide. Shallow inlets display fast morphological changes, due to complex interactions between tides, waves, and shallow depths. Their closure is commonly observed under storm waves, but the underlying processes remain only partly understood. Here, we present new field evidence that infragravity waves contribute to the closure of shallow inlets. The analysis of new field data collected at a shallow inlet under storm waves reveals that infragravity waves up to 0.4 m high can propagate inside the lagoon during flood but are blocked by opposing currents during ebb. At the passage of an infragravity wave crest, currents peak over 2.5 m/s and increase instantaneous sand fluxes by 2 orders of magnitude. Large accumulations of sand at the lagoon entrance damp tidal propagation until full inlet closure. This mechanism provides a new explanation for the closure of shallow inlets observed worldwide. |
英文关键词 | tidal inlet infragravity waves sediment transport storm Portugal |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477616300071 |
WOS关键词 | ESTUARIES ; EVOLUTION ; LAGOONS ; SWASH |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/184270 |
专题 | 气候变化 |
作者单位 | 1.La Rochelle Univ, CNRS, UMR 7266 LIENSs, 2 Rue Olympe Gouges, La Rochelle, France; 2.Univ Lisbon, Inst Super Tecn, CERIS, Lisbon, Portugal; 3.Natl Lab Civil Engn, Ave Brasil 101, Lisbon, Portugal; 4.Hydrog Inst, Rua Trinas 49, Lisbon, Portugal; 5.Univ Bordeaux, CNRS, UMR 5805 EPOC, Allee Geoffroy St Hilaire, Pessac, France |
推荐引用方式 GB/T 7714 | Bertin, Xavier,Mendes, Diogo,Martins, Kevin,et al. The Closure of a Shallow Tidal Inlet Promoted by Infragravity Waves[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(12):6804-6810. |
APA | Bertin, Xavier,Mendes, Diogo,Martins, Kevin,Fortunato, Andre B.,&Lavaud, Laura.(2019).The Closure of a Shallow Tidal Inlet Promoted by Infragravity Waves.GEOPHYSICAL RESEARCH LETTERS,46(12),6804-6810. |
MLA | Bertin, Xavier,et al."The Closure of a Shallow Tidal Inlet Promoted by Infragravity Waves".GEOPHYSICAL RESEARCH LETTERS 46.12(2019):6804-6810. |
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