气候变化领域集成服务门户(CCPortal): A novel approach for the assessment of morphological evolution based on observed water levels in tide-dominated estuaries

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DOI	10.5194/hess-24-1871-2020
	A novel approach for the assessment of morphological evolution based on observed water levels in tide-dominated estuaries
	Cai H.; Zhang P.; Garel E.; Matte P.; Hu S.; Liu F.; Yang Q.
发表日期	2020
ISSN	1027-5606
起始页码	1871
结束页码	1889
卷号	24 期号:4
英文摘要	Assessing the impacts of both natural (e.g. tidal forcing from the ocean) and human-induced changes (e.g. dredging for navigation and land reclamation) on estuarine morphology is particularly important for the protection and management of the estuarine environment. In this study, a novel analytical approach is proposed for the assessment of estuarine morphological evolution in terms of tidally averaged depth on the basis of the observed water levels along the estuary. The key lies in deriving a relationship between wave celerity and tidal damping or amplification. For given observed water levels at two gauging stations, it is possible to have a first estimation of both wave celerity (distance divided by tidal travelling time) and tidal damping or amplification rate (tidal range difference divided by distance), which can then be used to predict the morphological changes via an inverse analytical model for tidal hydrodynamics. The proposed method is applied to the Lingdingyang Bay of the Pearl River Estuary, located on the southern coast of China, to analyse the historical development of the tidal hydrodynamics and morphological evolution. The analytical results show surprisingly good correspondence with observed water depth and volume in this system. The merit of the proposed method is that it provides a simple approach for understanding the decadal evolution of the estuarine morphology through the use of observed water levels, which are usually available and can be easily measured. . © 2020 Royal Society of Chemistry. All rights reserved.
语种	英语
scopus关键词	Damping; Hydrodynamics; Inverse problems; Land reclamation; Morphology; Tides; Water levels; Analytical approach; Estuarine environments; Historical development; Morphological changes; Morphological evolution; Pearl River estuary; Protection and management; Tide-dominated estuaries; Estuaries; amplification; anthropogenic effect; damping; estuarine ecosystem; hydrodynamics; land reclamation; water depth; China; Guangdong; Lingdingyang Bay; Zhujiang Estuary; Zhujiang Estuary
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159438
作者单位	Cai, H., Inst. of Estuarine and Coast. Res./State and Loc. Jt. Eng. Lab. of Estuarine Hydraulic Technology, School of Marine Engineering and Technology, Sun Yat-sen University, Guangzhou, China, Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs/ Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China; Zhang, P., Inst. of Estuarine and Coast. Res./State and Loc. Jt. Eng. Lab. of Estuarine Hydraulic Technology, School of Marine Engineering and Technology, Sun Yat-sen University, Guangzhou, China, Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs/ Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China; Garel, E., Centre for Marine and Environmental Research (CIMA), University of Algarve, Faro, Portugal; Matte, P., Meteorological Research Division, Environment and Climate Change CanadaQC, Canada; Hu, S., Inst. of Estuarine and Coast. Res./State and Loc. Jt. Eng. Lab. of Estuarine Hydraulic Techno...
推荐引用方式 GB/T 7714	Cai H.,Zhang P.,Garel E.,et al. A novel approach for the assessment of morphological evolution based on observed water levels in tide-dominated estuaries[J],2020,24(4).
APA	Cai H..,Zhang P..,Garel E..,Matte P..,Hu S..,...&Yang Q..(2020).A novel approach for the assessment of morphological evolution based on observed water levels in tide-dominated estuaries.Hydrology and Earth System Sciences,24(4).
MLA	Cai H.,et al."A novel approach for the assessment of morphological evolution based on observed water levels in tide-dominated estuaries".Hydrology and Earth System Sciences 24.4(2020).