气候变化领域集成服务门户(CCPortal): Sea-level-rise-induced threats depend on the size of tide-influenced estuaries worldwide

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DOI	10.1038/s41558-019-0608-4
	Sea-level-rise-induced threats depend on the size of tide-influenced estuaries worldwide
	Leuven J.R.F.W.; Pierik H.J.; van der Vegt M.; Bouma T.J.; Kleinhans M.G.
发表日期	2019
ISSN	1758678X
卷号	9 期号:12
英文摘要	The effects of sea-level rise on the future morphological functioning of estuaries are largely unknown because tidal amplitudes will change due to combined deepening of the estuary mouth and shifting amphidromic points at sea. Fluvial sediment supply is also globally decreasing, which hampers infilling necessary to maintain elevation relative to sea level. Here we model 36 estuaries worldwide with varying sizes, shapes and hydrodynamic characteristics, and find that small shallow estuaries and large deep estuaries respond in opposite ways to sea-level rise. Large estuaries are threatened by sediment starvation and therefore loss of intertidal area, particularly if tidal amplitude decreases at the mouth. In contrast, small estuaries face enhanced flood risks and are more sensitive to tidal amplification on sea-level-rise-induced deepening. Estuary widening can partly mitigate adverse effects. In large estuaries, expanded intertidal areas increase tidal prism and available erodible sediment for adaptation, whereas it slightly reduces tidal amplification in small estuaries. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	amplitude; estuarine environment; estuary; flooding; hydrodynamics; sea level change; starvation; tidal cycle
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/124280
作者单位	Faculty of Geosciences, Utrecht University, Utrecht, Netherlands; Royal Netherlands Institute for Sea Research, Yerseke, Netherlands
推荐引用方式 GB/T 7714	Leuven J.R.F.W.,Pierik H.J.,van der Vegt M.,et al. Sea-level-rise-induced threats depend on the size of tide-influenced estuaries worldwide[J],2019,9(12).
APA	Leuven J.R.F.W.,Pierik H.J.,van der Vegt M.,Bouma T.J.,&Kleinhans M.G..(2019).Sea-level-rise-induced threats depend on the size of tide-influenced estuaries worldwide.Nature Climate Change,9(12).
MLA	Leuven J.R.F.W.,et al."Sea-level-rise-induced threats depend on the size of tide-influenced estuaries worldwide".Nature Climate Change 9.12(2019).