Numerical Assessment of the Impacts of Potential Future Sea‐Level Rise on Hydrodynamics of the Yangtze River Estuary, China

Kuang, Chunxiang; Chen, Wei; Gu, Jie; Zhu, David Z.; He, Lulu; Huang, Hongcheng

doi:10.2112/jcoastres-d-13-00149.1

Cited by 25 publications

(7 citation statements)

References 39 publications

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“…2.11 a) and the amplification is stronger upstream. There is a fair agreement between modelled tidal am- plitudes and those obtained with the numerical model of Kuang et al (2014b) under 2 m SLR. The tidal waves travel faster than those in the reference case (panel b).…”

Section: Effects Of Sea Level Risesupporting

confidence: 58%

“…For example, the high water arrives about 32 minutes earlier at the first branching point x = 0. However, the numerical results from Kuang et al (2014b) predict the advancement of time of high water due to 2 m SLR is about 45 minutes. This difference is most likely the consequence of simplified geometry.…”

Section: Effects Of Sea Level Risementioning

confidence: 98%

“…In this study, 2 m seal level rise (SLR) is simplified to a 2 m increase in water depths in all channels. Here, 2 m is the suggested maximum SLR based on the study of Kuang et al (2014b). Tidal limit moves further upstream due to larger water depth.…”

Section: Effects Of Sea Level Risementioning

confidence: 99%

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Hydrodynamics and suspended sediment dynamics in estuarine channel networks: an idealised modelling approach

Wang¹

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Estuaries are often characterised by a complex network of branching channels, in which the water motion is primarily driven by tides and fresh water discharge. For both scientific reasons and management purposes, it is important to gain more fundamental knowledge about the hydrodynamics in such networks, as well as their implications for turbidity and ecological functioning. A generic 2DV estuarine network model is developed to study tides and river water transport and to understand the dependence of their along-channel and vertical structure on forcings, geometry characteristics and sea level changes. The model is subsequently applied to the Yangtze Estuary to investigate tides and the distribution of river water over channels during dry and wet seasons, spring tide, as well as prior to and after the formation of Hengsha Passage and the construction of the Deep Waterway Project, and sea level rise. Increasing river discharge enhances the friction for tides by increasing both internal and bottom stresses. Changes in tidal forcing are correlated with the friction for both tide and river. A shortcut channel reduces the water level difference in adjacent channels, as well as the tidal amplitudes difference. Sea level rise results in larger friction parameters, faster propagation of tides, and more even distribution of river water transport. The distribution of river water transport is hardly affected by the above-mentioned changes. Model results and current vertical structure are consistent with observations. Mechanisms controlling the distribution of net water transport in estuarine networksThis chapter is based on the article Wang, J., Dijkstra, Y. M., and de Swart, H. E. (2022) Mechanisms controlling the distribution of net water transport in estuarine networks.

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Section: Effects Of Sea Level Risesupporting

confidence: 58%

Section: Effects Of Sea Level Risementioning

confidence: 98%

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Hydrodynamics and suspended sediment dynamics in estuarine channel networks: an idealised modelling approach

Wang¹

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“…321-445 in [5], leading to environmental and human life quality risks associated with floods, shoreline erosion, and other coastal problems [18]. This situation induced by global warming has increased the frequency and intensity of coastal inundation, with significant impacts on water level, current, and wave propagation in estuaries [19], leading to, besides others, alterations in saltwater intrusion and estuarine plumes spatial and temporal gradients variability [20,21].…”

Section: Introductionmentioning

confidence: 99%

Modelling Salt Intrusion and Estuarine Plumes under Climate Change Scenarios in Two Transitional Ecosystems from the NW Atlantic Coast

Pereira

Sousa

Vieira

et al. 2022

JMSE

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The Minho and Lima estuaries, separated by approximately 20 km, are two important transitional systems from the NW Atlantic Portuguese coast. Considering their contrasting characteristics, the present work aims to investigate climate change impacts in salt intrusion and estuarine plumes interaction, through an integrated hydrological characterization. The three-dimensional numerical model Delft3D was implemented to explore the hydrological response of these two systems taking into account their interaction. The model was applied to investigate two different climate change scenarios (RCP 4.5 and RCP 8.5), where physical variables such as sea level and river outflow were varied following summer and winter conditions. The numerical results revealed typically estuarine hydrological patterns, although some different features were found for each estuary. The head and mouth of the estuaries may be the zones most affected by climate change. In the first zone, the salinity may increase in the future in response to freshwater reduction from the Minho and Lima rivers. Considering the cumulative impact of the sea level rise, the saline intrusion may increase in the future: in the Minho estuary it reaches 14 km for the Present scenario during the dry season, penetrating further under climate change conditions (15 km for the RCP 4.5 scenario, and 17 km for the RCP 8.5 scenario); in the Lima estuary, the salt propagates further inland, reaching 17 km for the Present scenario, 18 km for the RCP 4.5 scenario, and a maximum of 20 km for the RCP 8.5 scenario. In all scenarios, during winter conditions, the estuarine plumes are larger and wider, being predicted that in the future they will reduce their dimensions during the winter period, and remain unchanged during summertime. Concisely, this modelling study provided more expertise about the physical patterns of these two estuaries and their interaction, as well as to anticipate the climate change impacts in their dynamics.

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“…Some Chinese scientists have studied the effects of SLR on Chinese Sea ( Kuang et al, 2014;Yu et al, 2003Yu et al, , 2007 , but the conclusions were not consistent, especially the changes of tidal range and phase lags in local Bohai Sea. The influences of SLR on tides depend on local sea level rise and particular coast morphology.…”

Section: Introductionmentioning

confidence: 99%

Sea level rise impact in residual circulation in Tagus estuary and Ria de Aveiro lagoon

Valentim¹,

Vaz²,

Vaz³

et al. 2013

Journal of Coastal Research

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Numerical Assessment of the Impacts of Potential Future Sea‐Level Rise on Hydrodynamics of the Yangtze River Estuary, China

Cited by 25 publications

References 39 publications

Hydrodynamics and suspended sediment dynamics in estuarine channel networks: an idealised modelling approach

Hydrodynamics and suspended sediment dynamics in estuarine channel networks: an idealised modelling approach

Modelling Salt Intrusion and Estuarine Plumes under Climate Change Scenarios in Two Transitional Ecosystems from the NW Atlantic Coast

Sea level rise impact in residual circulation in Tagus estuary and Ria de Aveiro lagoon

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