Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/NGEO3000 |
Tidal controls on river delta morphology | |
Hoitink, A. J. F.1; Wang, Z. B.2,3; Vermeulen, B.1,4; Huismans, Y.5; Kastner, K.1 | |
2017-09-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2017 |
卷号 | 10期号:9 |
文章类型 | Review |
语种 | 英语 |
国家 | Netherlands |
英文摘要 | River delta degradation has been caused by extraction of natural resources, sediment retention by reservoirs, and sea-level rise. Despite global concerns about these issues, human activity in the world's largest deltas intensifies. Harbour development, construction of flood defences, sand mining and land reclamation emerge as key contemporary factors that exert an impact on delta morphology. Tides interacting with river discharge can play a crucial role in the morphodynamic development of deltas under pressure. Emerging insights into tidal controls on river delta morphology suggest that-despite the active morphodynamics in tidal channels and mouth bar regions-tidal motion acts to stabilize delta morphology at the landscape scale under the condition that sediment import during low flows largely balances sediment export during high flows. Distributary channels subject to tides show lower migration rates and are less easily flooded by the river because of opposing non-linear interactions between river discharge and the tide. These interactions lead to flow changes within channels, and a more uniform distribution of discharge across channels. Sediment depletion and rigorous human interventions in deltas, including storm surge defence works, disrupt the dynamic morphological equilibrium and can lead to erosion and severe scour at the channel bed, even decades after an intervention. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000409229600008 |
WOS关键词 | TERM MORPHODYNAMIC EVOLUTION ; CROSS-SECTIONAL AREA ; LONG-TERM ; ESTUARINE MORPHODYNAMICS ; DISTRIBUTARY CHANNELS ; SEDIMENT ; ASYMMETRY ; DYNAMICS ; SEA ; EQUILIBRIUM |
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/34972 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Wageningen Univ & Res, Dept Environm Sci, Hydrol & Quantitat Water Management Grp, NL-6708PB Wageningen, Netherlands; 2.Delft Univ Technol, Fac Civil Engn & Geosci, Dept Hydraul Engn, NL-2600 GA Delft, Netherlands; 3.Deltares, Marine & Coastal Syst Dept, NL-2629 HV Delft, Netherlands; 4.Univ Twente, Fac Engn Technol, Dept Water Engn & Management, Marine & Fluvial Syst, NL-7522NB Enschede, Netherlands; 5.Deltares, River Dynam & Inland Shipping Dept, NL-2629 HV Delft, Netherlands |
推荐引用方式 GB/T 7714 | Hoitink, A. J. F.,Wang, Z. B.,Vermeulen, B.,et al. Tidal controls on river delta morphology[J]. NATURE GEOSCIENCE,2017,10(9). |
APA | Hoitink, A. J. F.,Wang, Z. B.,Vermeulen, B.,Huismans, Y.,&Kastner, K..(2017).Tidal controls on river delta morphology.NATURE GEOSCIENCE,10(9). |
MLA | Hoitink, A. J. F.,et al."Tidal controls on river delta morphology".NATURE GEOSCIENCE 10.9(2017). |
条目包含的文件 | 条目无相关文件。 |
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