- document
-
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
- document
-
van Maren, D.S. (author), Beemster, J. G.W. (author), Wang, Zhengbing (author), Khan, Z. H. (author), Schrijvershof, R. A. (author), Hoitink, A. J.F. (author)At a global scale, intertidal areas are being reclaimed for agriculture as well as urban expansion, imposing high human pressure on the coastal zone. The Ganges-Brahmaputra Delta (GBD) is an exponent of this development. In this delta, land reclamation accelerated in the 1960's to 1980's, when polders were constructed in areas subject to...journal article 2023
- document
-
Schrijvershof, R. A. (author), van Maren, D.S. (author), Torfs, P. J. J. F. (author), Hoitink, A. J. F. (author)Existing tidal input reduction approaches applied in accelerated morphodynamic simulations aim to capture the dominant tidal forces in a single or double representative tidal cycle, often referred to as a “morphological tide.” These strongly simplified tidal signals fail to represent the tidal extremes and hence poorly allow to represent...journal article 2023
- document
-
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
- document
-
Zhu, Chunyan (author), Zhang, Yuning (author), van Maren, D.S. (author), Xie, Weiming (author), Guo, Leicheng (author), Wang, Xianye (author), He, Qing (author)The sediment load in the Yangtze River downstream of the Three Gorges Dam (TGD) has substantially declined in recent decades. The decrease is more profound below the TGD, e.g., a 97% decrease at Yichang, compared with that at the delta apex, 1200 km downstream, e.g., a 75% decrease, implying along-river sediment recovery. Two large river...journal article 2023
- document
-
Zhu, C. (author), van Maren, D.S. (author), Guo, Leicheng (author), He, Qing (author), Wang, Zhengbing (author)A decline of the fluvial sediment supply leads to coastal erosion and land loss. However, the fluvial sediment load may influence not only coastal morphodynamics but also estuarine hydrodynamics and associated saltwater intrusion. Previous studies revealed that suspended sediments influence estuarine hydrodynamics through various flow...journal article 2023
- document
-
Zhu, C. (author), van Maren, D.S. (author), Guo, Leicheng (author), Lin, J. (author), He, Qing (author), Wang, Zhengbing (author)The mechanisms controlling the formation of an estuarine turbidity maximum (ETM) in estuaries have been extensively investigated, but one aspect that has received much less scientific attention is the role of high suspended sediment concentrations in combination with tidal asymmetry in ETM formation. Particularly in highly turbid estuaries,...journal article 2022
- document
-
Tas, S.A.J. (author), van Maren, D.S. (author), Reniers, A.J.H.M. (author)Cheniers are ridges consisting of coarse-grained sediments, resting on top of the fine sediment that forms the otherwise muddy coast. In this paper, we use Delft3D to explore how cheniers are formed through wave winnowing. We identify three phases of chenier development: (a) a winnowing phase, during which mud is washed out of the seabed...journal article 2022
- document
-
Cox, Jana R. (author), Paauw, Mandy (author), Nienhuis, Jaap H. (author), Dunn, Frances E. (author), van der Deijl, Eveline (author), Esposito, Christopher (author), Goichot, Marc (author), Leuven, Jasper R.F.W. (author), van Maren, D.S. (author)Deltas worldwide are at risk of elevation loss and drowning due to relative sea-level rise. Management strategies to restore or enhance sedimentation on delta plains, Sedimentation-Enhancing Strategies (hereafter SES), are now being pursued in many deltas but there has been limited cross-disciplinary and cross-delta review. Here we compare 21...journal article 2022
- document
-
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
- document
-
Zhou, Z. (author), Ge, Jianzhong (author), van Maren, D.S. (author), Wang, Zhengbing (author), Kuai, Y. (author), Ding, Pingxing (author)Lateral flows redistribute sediment and influence the morphodynamics of channel-shoal systems. However, our understanding of lateral transport of suspended sediment during high and low water slack is still fairly limited, especially in engineered estuaries. Human interventions such as dike-groyne structures influence lateral exchange...journal article 2021
- document
-
Zhu, C. (author), van Maren, D.S. (author), Guo, Leicheng (author), Lin, J. (author), He, Qing (author), Wang, Zhengbing (author)An estuarine turbidity maximum (ETM) is a region of elevated suspended sediment concentration (SSC) resulting from residual transport mechanisms driven by river flow, tides, and salinity-induced density gradients (SalDG). However, in energetic and highly turbid environments such as the Yangtze Estuary, SedDG may also substantially contribute...journal article 2021
- document
-
Tas, S.A.J. (author), van Maren, D.S. (author), Reniers, A.J.H.M. (author)Cheniers are important for stabilising mud-dominated coastlines. A chenier is a body of wave-reworked, coarse-grained sediment consisting of sand and shells overlying a muddy substrate. In this paper we present and analyse a week of field observations of the dynamics of a single chenier along the coast of Demak, Indonesia. Despite relatively...journal article 2020
- document
-
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
- document
-
van Maren, D.S. (author), Vroom, J. (author), Fettweis, M. (author), Vanlede, J.D.S.M. (author)Despite availability of a large amount of observational data and modelling studies, the mechanisms maintaining the Turbidity Maximum in the Belgian-Dutch coastal zone around the port of Zeebrugge (Belgium) are insufficiently understood. In order to better understand the dynamics of this turbidity maximum we examine the role of baroclinic ...journal article 2020
- document
-
Baptist, Martin J. (author), Gerkema, T. (author), van Prooijen, Bram (author), van Maren, D.S. (author), Colosimo, I. (author), Elschot, K. (author), de Groot, A. V. (author), Cleveringa, J. (author), van Eekelen, E. M.M. (author)We test an innovative approach to beneficially re-use dredged sediment to enhance salt marsh development. A Mud Motor is a dredged sediment disposal in the form of a semi-continuous source of mud in a shallow tidal channel allowing natural processes to disperse the sediment to nearby mudflats and salt marshes. We describe the various steps in...journal article 2019
- document
-
Zhao, Jie (author), Guo, Leicheng (author), He, Qing (author), Wang, Zhengbing (author), van Maren, D.S. (author), Wang, X. (author)Examination of large scale, alluvial estuarine morphology and associated time evolution is of particular importance regarding management of channel navigability, ecosystem, etc. In this work, we analyze morphological evolution and changes of the channel-shoal system in the Changjiang Estuary, a river- and tide-controlled coastal plain estuary,...journal article 2018
- document
-
Winterwerp, J.C. (author), Vroom, J (author), Wang, Zhengbing (author), Krebs, Martin (author), Hendriks, H.C.M. (author), van Maren, D.S. (author), Schrottke, Kerstin (author), Borgsmüller, Christine (author), Schöl, Andreas (author)In this paper, we analyse the behaviour of fine sediments in the hyper-turbid Lower Ems River, with focus on the river’s upper reaches, a stretch of about 25 km up-estuary of Terborg. Our analysis is based on long records of suspended particulate matter (SPM) from optical backscatter (OBS) measurements close to the bed at seven stations along...journal article 2017
- document
-
van Maren, D.S. (author), Cronin, Katherine (author)Estuarine suspended sediment transport models are typically calibrated against suspended sediment concentration data. These data typically cover a limited range of the actual suspended sediment concentration dynamics, constrained in either time or space. As a result of these data limitations, the available data can be reproduced with complex...journal article 2016
- document
-
Lenders, Roger (author), van Maren, Bas (author), Mol, Jan-Willem (author)Kribvakmetingen Druten/Ochten juli 1996 tot april 1997. Onderzoek naar de sedimenthuishouding van een viertal kribvakken langs de Waal. Het onderzoek betreft een studie naar de hydrodynamische invloed van scheepvaart op de sedimenthuishouding en de invloed van eolisch zandtransport op de sedimenthuishouding in vier kribvakken langs de Waal. Het...report 1998