气候变化领域集成服务门户(CCPortal): Changing Tides: The Role of Natural and Anthropogenic Factors

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DOI	10.1146/annurev-marine-010419-010727
	Changing Tides: The Role of Natural and Anthropogenic Factors
	Talke S.A.; Jay D.A.
发表日期	2020
ISSN	1941-1405
起始页码	121
结束页码	151
卷号	12
英文摘要	Tides are changing worldwide at rates not explained by astronomical forcing. Rather, the observed evolution of tides and other long waves, such as storm surges, is influenced by shelf processes and changes to the roughness, depth, width, and length of embayments, estuaries, and tidal rivers. In this review, we focus on processes in estuaries and tidal rivers, because that is where the largest changes to tidal properties are occurring. Recent literature shows that changes in tidal amplitude have been ubiquitous worldwide over the past century, often in response to wetland reclamation, channel dredging, and other environmental changes. While tidal amplitude changes are sometimes slight (<1%) or even negative, we identify two types of systems that are particularly prone to tidal amplification: (a) shallow, strongly damped systems, in which a small increase in depth produces a large decrease in effective friction, and (b) systems in which wave reflection and resonance are strongly influenced by changes to depth, friction, and convergence. The largest changes in amplitude occur inland, some distance from the coast, and can sometimes be measured in meters. Tide changes are a leading indicator that the dynamics of storm surges and river flood waves have also changed and are often associated with shifts in sediment transport, salinity intrusion, and ecosystem properties. Therefore, the dynamics of tidal evolution have major implications for coastal management, particularly for systems that are sensitive to changes in geometry induced by sea-level rise and anthropogenic development. © 2020 by Annual Reviews. All rights reserved.
英文关键词	anthropogenic effects; estuaries; sea-level rise; storm surge; tidal rivers; tides
语种	英语
scopus关键词	Floods; Friction; Rivers; Sea level; Sediment transport; Storms; Tides; Anthropogenic effects; Anthropogenic factors; Astronomical forcing; Environmental change; Sea level rise; Storm surges; Tidal river; Wetland reclamations; Estuaries; amplitude; anthropogenic effect; ecosystem approach; flood damage; sea level; sea level change; storm surge; tidal channel; climate change; ecosystem; estuary; flooding; river; tsunami; wetland; Climate Change; Ecosystem; Estuaries; Floods; Rivers; Tidal Waves; Wetlands
来源期刊	Annual Review of Marine Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/161980
作者单位	Department of Civil and Environmental Engineering, California Polytechnic State University, San Luis Obispo, CA 94307, United States; Department of Civil and Environmental Engineering, Portland State University, Portland, OR 97207, United States
推荐引用方式 GB/T 7714	Talke S.A.,Jay D.A.. Changing Tides: The Role of Natural and Anthropogenic Factors[J],2020,12.
APA	Talke S.A.,&Jay D.A..(2020).Changing Tides: The Role of Natural and Anthropogenic Factors.Annual Review of Marine Science,12.
MLA	Talke S.A.,et al."Changing Tides: The Role of Natural and Anthropogenic Factors".Annual Review of Marine Science 12(2020).