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Overes, P.H.P. (author), Borsje, B. W. (author), Luijendijk, Arjen (author), Hulscher, S. J.M.H. (author)Sand waves are found on shallow, sandy seabeds throughout the world and their dynamics may pose an imminent threat to offshore construction. Therefore, there is a pressing need to understand bed level dynamics in sand wave areas. These bed level dynamics lead to variations in sand wave shape and migration rate over time. However, these...journal article 2024
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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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Burdorf, Laurine D.W. (author), Cook, Perran L.M. (author), Robertson, Elizabeth K. (author), Tramper, Anton (author), Hidalgo-Martinez, Silvia (author), Vasquez-Cardenas, Diana (author), Malkin, Sairah Y. (author), Meysman, F.J.R. (author)Cable bacteria can reach high densities in coastal sediments, and as a result of their unusual electrogenic lifestyle and intense metabolic activity, exert a major and distinct impact on biogeochemical cycling, both locally in sediments and at the ecosystem level. This appears to be particularly true for seasonally hypoxic systems, but the...journal article 2024
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Dunne, K.B.J. (author), Nittrouer, J. A. (author), Abolfazli, E. (author), Osborn, R. (author), Strom, K. B. (author)The riverine transport and deposition of mud is the primary agent of landscape construction and evolution in many fluvial and coastal environments. Previous efforts exploring this process have raised uncertainty regarding the effects of hydrodynamic and chemical controls on the transport and deposition of mud, and thus the constructions of...journal article 2024
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Abolfazli, Ehsan (author), Osborn, Ryan (author), Dunne, K.B.J. (author), Nittrouer, Jeffrey A. (author), Strom, Kyle (author)Muddy sediment constitutes a major fraction of the suspended sediment mass carried by the Mississippi River. Thus, adequate knowledge of the transport dynamics of suspended mud in this region is critical in devising efficient management plans for coastal Louisiana. We conducted laboratory tank experiments on the sediment suspended in the...journal article 2024
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Pol, J.C. (author), Noordam, Aron (author), Kanning, W. (author)Backward erosion piping (BEP) is a failure mechanism of hydraulic structures like dams and levees on cohesionless foundations subjected to seepage flows. This article models the time-dependent development of BEP using numerical simulation of the erosion process. A 3-dimensional finite element equilibrium BEP model is extended with a...journal article 2024
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Sources of suspended sediments in salt marsh creeks: Field measurements in China and the NetherlandsSun, J. (author), van Prooijen, Bram (author), Wang, Xianye (author), Hanssen, J.L.J. (author), Xie, W. (author), Lin, J. (author), Xu, Yuan (author), He, Qing (author), Wang, Zhengbing (author)Marsh creeks are perceived as important conduits for transporting water and sediment between mudflats and marshes. In order to advance the understanding of the transport mechanisms in creeks, the source and ultimate sink of sediment which moves between mudflats and marshes through creek channels need further investigation. Therefore, two...journal article 2024
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Colina Alonso, A. (author), van Maren, D.S. (author), Oost, Albert Peter (author), Esselink, Peter (author), Lepper, Robert (author), Kösters, Frank (author), Bartholdy, Jesper (author), Bijleveld, Allert (author), Wang, Zhengbing (author)The world’s coasts and deltas are progressively threatened by climate change and human activities. The degree at which coastlines can adapt to these changes strongly depends on the sediment availability. The availability of muddy sediments is however poorly known. This study aims at developing a mud budget for the world’s largest system of...journal article 2024
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Ali, W. (author), Kirichek, Alex (author), Chassagne, C. (author)In this work a high-magnification digital video camera in combination with a settling column is used to study in a first part the influence of the amount of flocs transferred into the settling column on their settling velocity. In a second part, the setup was used to study the properties of flocs prepared at different clay concentrations but at...journal article 2024
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Alhaddad, S.M.S. (author), Suleman, M. (author), Kirichek, Alex (author), Chassagne, C. (author)Coandă-effect-based collection stands out as the foremost technology in polymetallic-nodule mining due to the absence of direct contact between the collector and the ocean floor. Yet, this collection method disturbs the ocean floor, and minimizing such disturbance is crucial from an environmental viewpoint. To this end, a solid understanding of...journal article 2024
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van Wiechen, P.P.J. (author), de Vries, S. (author), Reniers, A.J.H.M. (author)During extreme conditions, the transport of the wave-averaged suspended sediment concentrations in the inner surf zone affects dune erosion. Although large-scale laboratory experiments have provided insight in what drives these sediment concentrations, corresponding field data are lacking. To fill this gap, novel field observations of suspended...journal article 2024
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Alhaddad, S.M.S. (author), Helmons, R.L.J. (author)To date, hydraulic collection is the most widely considered technology in polymetallic-nodule mining, since there is no direct contact between hydraulic collectors and ocean floor. To construct a hydraulic collector that results in the least sediment disturbance, it is critical to develop an insightful understanding of the interaction between...journal article 2023
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Kuai, Y. (author), Aarninkhof, S.G.J. (author), Wang, Zhengbing (author)Intertidal flats are of great socio-economic and ecological importance in defending the coastal cities from flooding, providing resources for land reclamations and habits for wildlife. On the intertidal flats, milder profiles are usually featured with finer sediment. However, we find the opposite relationship between the alongshore variation in...journal article 2023
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Xie, Weiming (author), Sun, J. (author), Guo, Leicheng (author), Xu, Fan (author), Wang, Xianye (author), Ji, Hongyu (author), Fan, Yaoshen (author), Wang, Zhengbing (author), He, Qing (author)Coastal tidal flats provide valuable ecosystems, but are highly sensitive to tidal dynamics, sea-level rise, and human activities. Tidal inundation depth and frequency are known to affect tidal flat morphodynamics. However, the causes, processes and extent remain uncertain, particularly given the associated changes in sediment availability. In...journal article 2023
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Prest, Emmanuelle I. (author), Martijn, Bram J. (author), Rietveld, Matthijs (author), Lin, Y. (author), Schaap, Peter G. (author)Sediment formation in drinking water distribution systems can lead to brown water at customer taps. Previous studies have shown that sediment formation is closely linked with (micro)biological processes in the distribution system, however the mechanism is not fully understood. Most available studies on discoloration or sediment formation...journal article 2023
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Shajahan, M.T. (author), Breugem, W.P. (author)Particle-resolved Direct Numerical Simulations have been performed on the gravitational settling of mono-disperse solid spheres in a viscous fluid and triply periodic domain. In a comprehensive study, the bulk solid volume concentration was varied from ϕ=0.5 to 30%. To study the effect of inertia, three different Galileo numbers were...journal article 2023
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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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Kang, Li (author), Haasler, Sina (author), Mucci, Maíra (author), Korving, Leon (author), Dugulan, A.I. (author), Prot, T.J.F. (author), Waajen, Guido (author), Lürling, Miquel (author)The eutrophic Bouvigne pond (Breda, The Netherlands) regularly suffers from cyanobacterial blooms. To improve the water quality, the external nutrient loading and the nutrient release from the pond sediment have to be reduced. An enclosure experiment was performed in the pond between March 9 and July 29, 2020 to compare the efficiency of...journal article 2023
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Beselly, S.M. (author), Grueters, U. (author), van Der Wegen, M. (author), Reyns, J.A.H. (author), Dijkstra, J. (author), Roelvink, D. (author)As climate-change-driven extremes potentially make coastal areas more vulnerable, mangroves can help sustainably protect the coasts. There is a substantial understanding of both mangrove dynamics and hydro-morphodynamic processes. However, the knowledge of complex eco-geomorphic interactions with physical-environmental stressors remains...journal article 2023
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Marin-Diaz, Beatriz (author), van der Wal, Daphne (author), Kaptein, Leon (author), Martinez-Garcia, Pol (author), Lashley, Christopher H. (author), de Jong, Kornelis (author), Nieuwenhuis, Jan Willem (author), Govers, Laura L. (author), Olff, Han (author), Bouma, Tjeerd J. (author)Salt marshes fronting coastal structures, such as seawalls and dikes, may offer important ecosystem-based coastal defence by reducing the wave loading and run-up levels during storms. We question (i) how the long-term salt marsh development in the Dutch Wadden Sea relates to the tidal-flat foreshore bathymetry and (ii) how the wave run-up...journal article 2023