document

Best Practices for Longitudinal Training Walls to mitigate channel bed erosion

Czapiga, Matthew (author), Blom, A. (author), Viparelli, Enrica (author)

conference paper 2022

document

Studies on River Training

Mosselman, E. (author)

This editorial regards a Special Issue of Water on river training. It introduces five papers in a framework of history, fundamentals, case studies and future. Four papers result from decades of experience with innovation, planning, design and implementation of river training works on rivers in Colombia, the Rhine branches in the Netherlands and...

contribution to periodical 2020

document

Intertidal Flats in Engineered Estuaries: On the Hydrodynamics, Morphodynamics, and Implications for Ecology and System Management

de Vet, P.L.M. (author)

Intertidal flats — regions of estuaries that emerge every tide from the water — form unique ecosystems. Benthic communities living in the bed are a valuable food source for wading birds. Salt marshes present on these flats further enhance the biodiversity. Through the damping of waves, intertidal flats also contribute to the safety of the...

doctoral thesis 2020

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Net sediment transport in tidal basins: quantifying the tidal barotropic mechanisms in a unified framework

Gatto, V.M. (author), van Prooijen, Bram (author), Wang, Zhengbing (author)

Net sediment transport in tidal basins is a subtle imbalance between large fluxes produced by the flood/ebb alternation. The imbalance arises from several mechanisms of suspended transport. Lag effects and tidal asymmetries are regarded as dominant, but defined in different frames of reference (Lagrangian and Eulerian, respectively). A...

journal article 2017

document

Drivers of cross-shore chenier dynamics off a drowning coastal plain

Tas, S.A.J. (author), van Maren, D.S. (author), Helmi, Muhammad (author), Reniers, A.J.H.M. (author)

A chenier is a beach ridge, consisting of sand and/or shells, overlying a muddy substrate. In this paper, we explore the cross-shore dynamics of cheniers in their ‘active’ phase, i.e. the phase between their formation and their landing on the shore and can no longer be reached by daily wave and tidal influences. While cheniers described in...

journal article 2022

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The contribution of sand and mud to infilling of tidal basins in response to a closure dam

Colina Alonso, A. (author), van Maren, D.S. (author), Elias, E. P.L. (author), Holthuijsen, S. J. (author), Wang, Zhengbing (author)

Human interventions and climate change can heavily influence the large-scale morphological development of tidal basins. This has implications on sediment management strategies, as well as ecological and recreational purposes. Examples of heavily impacted tidal basins are those in the Western Dutch Wadden Sea. The closure of a large sub-basin...

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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Predicting marine and aeolian contributions to the Sand Engine's evolution using coupled modelling

van Westen, B. (author), Luijendijk, Arjen (author), de Vries, S. (author), Cohn, Nicholas (author), Leijnse, Tim W.B. (author), de Schipper, M.A. (author)

Quantitative predictions of marine and aeolian sediment transport in the nearshore–beach–dune system are important for designing Nature-Based Solutions (NBS) in coastal environments. To quantify the impact of the marine-aeolian interactions on shaping NBS, we present a framework coupling three existing process-based models: Delft3D Flexible...

journal article 2024

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Effects of discharge, wind, and tide on sedimentation in a recently restored tidal freshwater wetland

Verschelling, Eelco (author), van der Deijl, Eveline (author), van der Perk, Marcel (author), Sloff, C.J. (author), Middelkoop, Hans (author)

Sediment deposition is one of the key mechanisms to counteract the impact of sea level rise in tidal freshwater wetlands (TFWs). However, information about sediment deposition rates in TFWs is limited, especially for those located in the transition zone between the fluvially dominated and tidally dominated sections of a river delta where...

journal article 2017

document

New Insights on Coastal Foredune Growth: The Relative Contributions of Marine and Aeolian Processes

Cohn, Nicholas (author), Ruggiero, Peter (author), de Vries, S. (author), Kaminsky, George M. (author)

Coastal foredune growth is typically associated with aeolian sediment transport processes, while foredune erosion is associated with destructive marine processes. New data sets collected at a high energy, dissipative beach suggest that total water levels in the collision regime can cause dunes to accrete-requiring a paradigm shift away from...

journal article 2018

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A Sand-Gravel Gilbert Delta Subject to Base Level Change

Chavarrias Borras, V. (author), Blom, A. (author), Orru, C. (author), Martín-Vide, Juan Pedro (author), Viparelli, Enrica (author)

Laboratory experiments were conducted on a sand-gravel Gilbert delta to gain insight on its dynamics under varying base level. Base level rise results in intensified aggradation over the topset, as well as a decrease in topset slope and topset surface coarsening, the signals of which migrate in an upstream direction. Preferential deposition...

journal article 2018

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A conceptual model for spatial Grain size variability on the surface of and within beaches

Gallagher, Edith (author), Wadman, Heidi (author), McNinch, Jesse (author), Reniers, A.J.H.M. (author), Koktas, Melike (author)

Grain size on the surface of natural beaches has been observed to vary spatially and temporally with morphology and wave energy. The stratigraphy of the beach at Duck, North Carolina, USA was examined using 36 vibracores (~1-1.5 m long) collected along a cross-shore beach profile. Cores show that beach sediments are finer (~0.3 mm) and more...

journal article 2016

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Beach scarp dynamics at nourished beaches

van Bemmelen, C.W.T. (author), de Schipper, M.A. (author), Darnall, J. (author), Aarninkhof, S.G.J. (author)

Beach scarps are nearly vertical seaward facing sandy cliffs within the cross-shore beach profile. These features are often associated with eroding (nourished) coastlines and can reach heights of O(2–3 m). An analysis of a six-year dataset of beach scarp presence at the nourished Sand Engine beach shows that the formation of beach scarps at the...

journal article 2020

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Morphodynamic impacts of large-scale engineering projects in the Yangtze River delta

Luan, Hualong (author), Ding, P (author), Wang, Zhengbing (author), Yang, S.L. (author), Lu, Jin You (author)

Morphodynamics of world's river deltas are increasingly affected by human activities, which are of great ecological, economic and social implications. However, impacts of human interventions in deltaic regions are insufficiently<br/>understood, especially superimposed upon diminishing sediment supplies. This study uses the heavily interfered...

journal article 2018

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Exploring marine and aeolian controls on coastal foredune growth using a coupled numerical model

Cohn, Nicholas (author), Hoonhout, B.M. (author), Goldstein, Evan B. (author), de Vries, S. (author), Moore, Laura J. (author), Vinent, Orencio Durán (author), Ruggiero, Peter (author)

Coastal landscape change represents aggregated sediment transport gradients from spatially and temporally variable marine and aeolian forces. Numerous tools exist that independently simulate subaqueous and subaerial coastal profile change in response to these physical forces on a range of time scales. In this capacity, coastal foredunes have...

journal article 2019

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Sediment dynamics and transport regimes in a narrow microtidal estuary

Mathew, R. (author), Winterwerp, J.C. (author)

Estuarine sediment dynamics are a consequence of various forcings (barotropic, estuarine circulation, and fluvial) that vary in space and time. Here, we present a study examining sediment dynamics in a narrow microtidal estuary, the Lower Passaic River in New Jersey, USA. The analysis incorporates measurements of suspended sediments,...

journal article 2020

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Performance evaluation of wave input reduction techniques for modeling inter-annual sandbar dynamics

de Queiroz, Bruna (author), Scheel, F. (author), Caires, Sofia (author), Walstra, D.J.R. (author), Olij, Derrick (author), Yoo, Jeseon (author), Reniers, A.J.H.M. (author), de Boer, W.P. (author)

In process-based numerical models, reducing the amount of input parameters, known as input reduction (IR), is often required to reduce the computational effort of these models and to enable long-term, ensemble predictions. Currently, a comprehensive performance assessment of IR-methods is lacking, which hampers guidance on selecting suitable...

journal article 2019

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Cross-shore suspended sediment transport in relation to topographic changes in the intertidal zone of a macro-tidal beach (Mariakerke, Belgium)

Brand, Evelien (author), De Sloover, Lars (author), De Wulf, Alain (author), Montreuil, Anne Lise (author), Vos, S.E. (author), Chen, Margaret (author)

Sediment transport is a key element in intertidal beach morphodynamics, but measurements of sediment transport are often unreliable. The aim of this study is to quantify and investigate cross-shore sediment transport and the resulting topographic changes for a tide-dominated, sandy beach. Two fortnight-long field experiments were carried out...

journal article 2019

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Sandy beaches in low-energy, non-tidal environments: Linking morphological development to hydrodynamic forcing

Ton, A.M. (author), Vuik, V. (author), Aarninkhof, S.G.J. (author)

The morphodynamic behaviour of low-energy beaches is poorly understood, compared to that of exposed coasts. This study analyses the morphological development of sandy, low-energy beaches and the steering hydrodynamic processes. Four densely-monitored study sites in the non-tidal lake Markermeer in the Netherlands offered a unique opportunity...

journal article 2021

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Longshore sediment transport by large-scale lake circulations at low-energy, non-tidal beaches: A field and model study

Ton, A.M. (author), Vuik, V. (author), Aarninkhof, S.G.J. (author)

Low-energy, non-tidal lake beaches are known to be subject to longshore morphodynamics, but little is known about how they are driven by wind and wave-driven currents. Lake Markermeer is a shallow (∼4 m deep), wind-dominated lake, of approximately 700 km². A gradient in wind-induced water level set-up at the leeward shore induces a...

journal article 2023