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Sediment fluxes within salt marsh tidal creek systems in the Yangtze Estuary

Sun, J. (author), van Prooijen, Bram (author), Wang, Xianye (author), Zhao, Zhonghao (author), He, Qing (author), Wang, Zhengbing (author)

Creeks are essential for salt marshes by conveying water and sediment through this geomorphic system. In this paper, we investigate the mechanisms that determine the residual sediment flux using measurements conducted in tidal creeks in salt marshes of the Yangtze Estuary. A main creek and a secondary creek were studied to explore whether the...

journal article 2024

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Increased Utilization of Storm Surge Barriers: A Research Agenda on Estuary Impacts

Orton, Philip (author), Ralston, David (author), van Prooijen, Bram (author), Secor, David (author), Ganju, Neil (author), Chen, Ziyu (author), Fernald, Sarah (author), Brooks, Bennett (author), Marcell, Kristin (author)

Rising coastal flood risk and recent disasters are driving interest in the construction of gated storm surge barriers worldwide, with current studies recommending barriers for at least 11 estuaries in the United States alone. Surge barriers partially block estuary-ocean exchange with infrastructure across an estuary or its inlet and include...

journal article 2023

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Winds of opportunity: The effects of wind on intertidal flat accretion

Colosimo, I. (author), van Maren, D.S. (author), de Vet, P.L.M. (author), Winterwerp, J.C. (author), van Prooijen, Bram (author)

Intertidal ecosystems are threatened by sea level rise and anthropogenic pressures. Understanding the processes controlling the morphodynamic developments of tidal flats is crucial for sustainable management of these systems. Analysis of three extensive fieldwork campaigns carried out on two adjacent mudflats fringing the Dutch Western Wadden...

journal article 2023

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A novel approach to mapping ebb-tidal delta morphodynamics and stratigraphy

Pearson, S.G. (author), Elias, Edwin (author), van Prooijen, Bram (author), van der Vegt, H. (author), van der Spek, A.J.F. (author), Wang, Zhengbing (author)

Ebb tidal deltas (ETDs) are highly dynamic features of sandy coastal systems, and coastal management concerns (e.g., nourishment and navigation) present a pressing need to better describe and quantify their evolution. Here we propose two techniques for leveraging the availability of high-resolution bathymetric surveys to generate new insights...

journal article 2022

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Wave attenuation potential, sediment properties and mangrove growth dynamics data over Guyana's intertidal mudflats: assessing the potential of mangrove restoration works

Best, U.S.N. (author), van der Wegen, Mick (author), Dijkstra, Jasper (author), Reyns, J.A.H. (author), van Prooijen, Bram (author), Roelvink, D. (author)

Coastal mangroves, thriving at the interface between land and sea, provide robust flood risk reduction. Projected increases in the frequency and magnitude of climate impact drivers such as sea level rise and wind and wave climatology reinforce the need to optimize the design and functionality of coastal protection works to increase resilience....

journal article 2022

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An explanatory model for the burial of fines in the sandy seabed of the southern North Sea

Hendriks, H.C.M. (author), van Prooijen, Bram (author), Cheng, C. H. (author), Aarninkhof, S.G.J. (author), Winterwerp, J.C. (author), Soetaert, K. E. (author)

The amount of suspended fines in the southern North Sea strongly depends on their exchange with the sandy seabed. This exchange is governed by resuspension of fines during storms, followed by burial in the week thereafter. Despite its importance for fine sediment dynamics, the burial of fines into a sandy seabed is currently not well...

journal article 2022

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Coastal aeolian sediment transport in an active bed surface layer: Tracer study and conceptual model

Uphues, Charlotte F.K. (author), van IJzendoorn, Christa (author), Hallin, E.C. (author), Pearson, S.G. (author), van Prooijen, Bram (author), Miot da Silva, Graziela (author), de Vries, S. (author)

Coastal aeolian sediment transport is influenced by supply-limiting factors caused by sediment sorting by grain size. Sorting processes can lead to coarsening of the bed surface and influence the formation of aeolian ripples. However, the influence sorting processes and bedforms might have on the magnitude of the transport is not fully...

journal article 2022

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Where and why do creeks evolve on fringing and bare tidal flats?

Hanssen, J.L.J. (author), van Prooijen, Bram (author), Volp, Nicolette Dominique (author), de Vet, P.L.M. (author), Herman, P.M.J. (author)

Although tidal flats appear homogeneous from a distance, morphological variations are found on various spatial scales. These are driven by physical and/or biological processes. In this paper, we consider the creeks that are present on fringing tidal flats and which are orientated approximately perpendicular to the main channel. To explain why...

journal article 2022

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Lagrangian sediment transport modelling as a tool for investigating coastal connectivity

Pearson, S.G. (author), Elias, E.P.L. (author), van Ormondt, M (author), Roelvink, F.E. (author), Lambregts, P.M. (author), Wang, Zhengbing (author), van Prooijen, Bram (author)

Estuaries and coasts can be conceptualized as connected networks of water and sediment fluxes. These dynamic geomorphic systems are governed by waves, tides, wind, and river input, and evolve according to complex nonlinear transport processes. To predict their evolution, we need to better understand the pathways that sediment takes from source...

conference paper 2021

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Characterizing the Composition of Sand and Mud Suspensions in Coastal and Estuarine Environments Using Combined Optical and Acoustic Measurements

Pearson, S.G. (author), Verney, Romaric (author), van Prooijen, Bram (author), Tran, Duc (author), Hendriks, H.C.M. (author), Jacquet, Matthias (author), Wang, Zhengbing (author)

Quantifying and characterizing suspended sediment is essential to successful monitoring and management of estuaries and coastal environments. To quantify suspended sediment, optical and acoustic backscatter instruments are often used. Optical backscatter systems are more sensitive to mud particles (<63 μm) and flocs, whereas acoustic...

journal article 2021

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Tracking fluorescent and ferrimagnetic sediment tracers on an energetic ebb-tidal delta to monitor grain size-selective dispersal

Pearson, S.G. (author), van Prooijen, Bram (author), Poleykett, Jack (author), Wright, Matthew (author), Black, Kevin (author), Wang, Zhengbing (author)

Sediment tracer studies use uniquely identifiable particles to track the pathways and fate of individual sand or silt grains in marine environments. These techniques are best applied to assess connectivity between potential sediment sources and sinks, such as between a sand nourishment and an ecologically sensitive area. Significant challenges...

journal article 2021

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Two-channel system dynamics of the outer weser estuary—a modeling study

Gundlach, Jannek (author), Zorndt, Anna (author), van Prooijen, Bram (author), Wang, Zhengbing (author)

In this paper, we unravel the mechanisms responsible for the development of the two-channel system in the Outer Weser Estuary. A process-based morphodynamic model is built based on a flat-bed approach using simplified boundary conditions and accelerated morphological develop-ment. The results are analyzed in two steps: first, by checking for...

journal article 2021

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The impact of wind-waves and sea level rise on the morphodynamics of a sandy estuarine shoal

Zheng, J. (author), Elmilady, H.M.S.M.A. (author), Röbke, B. R. (author), Taal, M. (author), Wang, Zhengbing (author), van Prooijen, Bram (author), de Vet, P.L.M. (author), van der Wegen, M. (author)

Intertidal shoals are pronounced morphological features found in many estuaries worldwide. Apart from maintaining an ecologically unique intertidal environment, shoals also protect adjacent dyke systems by attenuating waves. The fate of sandy shoals under anticipated sea level rise (SLR) scenarios is underexplored. The current research...

journal article 2021

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Field measurements and numerical modelling of wind-driven exchange flows in a tidal inlet system in the Dutch Wadden Sea

van Weerdenburg, R.J.A. (author), Pearson, S.G. (author), van Prooijen, Bram (author), Laan, Stendert (author), Elias, Edwin (author), Tonnon, Pieter Koen (author), Wang, Zhengbing (author)

Multiple tidal inlet systems like the Wadden Sea have long been considered as separated basins, bordered by so-called tidal divides. Recently, it was however shown that fluxes of water and sediment occur over the borders of these basins, especially during wind events. In this paper, the wind-driven fluxes over these borders and the residual...

journal article 2021

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Regime shifts in the Changjiang (Yangtze River) Estuary: The role of concentrated benthic suspensions

Lin, J. (author), van Prooijen, Bram (author), Guo, Leicheng (author), Zhu, C. (author), He, Qing (author), Wang, Zhengbing (author)

Channel deepening often triggers positive feedback between tidal deformation, sediment import and drag reduction, which leads to the regime shift in estuaries from low-turbid to hyper-turbid state. In this study, a transition in profiles of suspended sediment concentration (SSC) is hypothesised by including a positive feedback loop of...

journal article 2021

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Measurements of hydrodynamics, sediment, morphology and benthos on Ameland ebb-tidal delta and lower shoreface

van Prooijen, Bram (author), Tissier, M.F.S. (author), de Wit, F.P. (author), Pearson, S.G. (author), Holzhauer, H. (author), Gawehn, M.A. (author), Antolínez, José A. Á. (author), de Vet, P.L.M. (author), Reniers, A.J.H.M. (author), Wang, Zhengbing (author), den Heijer, C. (author), Wilmink, R.J.A. (author)

A large-scale field campaign was carried out on the ebb-tidal delta (ETD) of Ameland Inlet, a basin of the Wadden Sea in the Netherlands, as well as on three transects along the Dutch lower shoreface. The data have been obtained over the years 2017-2018. The most intensive campaign at the ETD of Ameland Inlet was in September 2017. With this...

journal article 2020

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The impact of wind on flow and sediment transport over intertidal flats

Colosimo, I. (author), de Vet, P.L.M. (author), van Maren, D.S. (author), Reniers, A.J.H.M. (author), Winterwerp, J.C. (author), van Prooijen, Bram (author)

Sediment transport over intertidal flats is driven by a combination of waves, tides, and wind-driven flow. In this study we aimed at identifying and quantifying the interactions between these processes. A five week long dataset consisting of flow velocities, waves, water depths, suspended sediment concentrations, and bed level changes was...

journal article 2020

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Sediment Disposals in Estuarine Channels Alter the Eco-Morphology of Intertidal Flats

de Vet, P.L.M. (author), van Prooijen, Bram (author), Colosimo, I. (author), Ysebaert, T. (author), Herman, P.M.J. (author), Wang, Zhengbing (author)

Dredging of navigation channels in estuaries affects estuarine morphology and ecosystems. In the Western Scheldt, a two-channel estuary in the Netherlands, the navigation channel is deepened and the sediment is relocated to other parts of the estuary. We analyzed the response of an intertidal flat to sediment disposals in its adjacent channel...

journal article 2020

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How human activities affect the fine sediment distribution in the Dutch Coastal Zone seabed

Hendriks, H.C.M. (author), van Prooijen, Bram (author), Aarninkhof, S.G.J. (author), Winterwerp, J.C. (author)

The fine sediment distribution in the seabed is an important indicator for the ecological functioning of shallow coastal seas. In this paper, we investigate the processes and conditions that determine the fine sediment distribution in the Dutch coastal zone surficial seabed, while also assessing the response of the system to human...

journal article 2020

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An integrated optic and acoustic (IOA) approach for measuring suspended sediment concentration in highly turbid environments

Lin, J. (author), He, Qing (author), Guo, Leicheng (author), van Prooijen, Bram (author), Wang, Zhengbing (author)

Accurate measurement of suspended sediment concentration (SSC) in highly turbid environments has been a problem due to optical or acoustic signal saturation and attenuation. The saturation returns a limited measurement range, and the attenuation raises an ambiguity problem that a low optical or acoustic output could mean a low or a high SSC....

journal article 2020