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van Leeuwen, David (author)This study assesses the application of graph theory to examine the connectivity of aquatic habitat in the Sliedrechtse Biesbosch and preserve or improve the area’s ecological value. The study addresses the relation between hydrodynamics and ecology, and evaluates different definitions of connectivity. Graph theory provides a novel and promising...master thesis 2023
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Hilgersom, Tijmen (author)The Ems Dollart estuary is facing high levels of turbidity, which hinders the growth of algae and impacts the entire ecosystem. In recent years, turbidity has increased here with 0.5 to 3% per year between 1990 and 2010, corresponding to a doubling of suspended sediment concentration (SSC) within 24 years for the upper bound of 3%. This trend is...master thesis 2023
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van Horick, Quintes (author)The awareness of climate change has grown worldwide in the past years. Possible consequences of climate change are sea level rise, heavier storms and high river discharges, but also prolonged drought. For a country such as the Netherlands, these water level variations, high discharges and droughts could have a great impact. Therefore, solutions...master thesis 2023
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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 km<sup>2</sup>. A gradient in wind-induced water level set-up at the leeward shore induces a...journal article 2023
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Zăinescu, Florin (author), van der Vegt, Helena (author), Storms, J.E.A. (author), Nutz, Alexis (author), Bozetti, Guilherme (author), May, Jan-Hendrik (author), Cohen, Sagy (author), Bouchette, Frederic (author), May, Simon Matthias (author), Schuster, Mathieu (author)A complete annual cycle of the dynamics of fine-grained sediment supplied by the Omo and smaller rivers is simulated for Lake Turkana, one of the world’s large lakes, with the hydrodynamic, wave and sediment transport model Delft3D. The model is forced with river liquid and solid discharge and wind data in order to simulate cohesive sediment...journal article 2023
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Stevens, Andrew W. (author), Moritz, Hans R. (author), Elias, Edwin P.L. (author), Gelfenbaum, Guy R. (author), Ruggiero, Peter R. (author), Pearson, S.G. (author), McMillan, James M. (author), Kaminsky, George M. (author)A submerged, low-relief nearshore berm was constructed in the Pacific Ocean near the mouth of the Columbia River, USA, using 216,000 m<sup>3</sup> of sediment dredged from the adjacent navigation channel. The material dredged from the navigation channel was placed on the northern flank of the ebb-tidal delta in water depths between 12 and 15...journal article 2023
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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
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Stefanus Wicaksana Kurniawan, Stefanus (author)The feasibility of installing a suction system, which consists of a pump and pipeline for transporting sediment from the sediment trap to the reallocation site to complement the water injection dredging (WID) method is accessed in this thesis. The combination of a suction system and a water injection dredger is called central suction-WID system....master thesis 2022
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- van der Ent, Nils (author) master thesis 2022
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van Overeem, Jan (author)San Andrés is a Colombian-Caribbean Island located 800 km from the Colombian coast. On its Eastern side there is a barrier reef formation protecting the island from offshore incident waves. Due to the protected environment created by the coral reef, sandy beaches can be formed on the East side of the island. <br/>During normal conditions, waves...master thesis 2022
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Bruijns, Ron (author)Fluvial flooding poses a major threat to mankind and annually leads to major economic losses with many casualties worldwide. The consequences of this can be mitigated when accurate and rapid predictions are available when the water will arrive at which location. Current numerical simulations take a significant amount of time due to their...master thesis 2022
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Vromen, Tom (author)There is a demand by Rijkswaterstaat for CO2-neutral sustainable methods and technologies to maintain the Dutch coastline. The Zandwindmolen is a fixed CO2-neutral dredge, transport and nourishment concept that nourishes sediment continuously. The purpose of using a Zandwindmolen is to provide the entire surrounding area where the Zandwindmolen...master thesis 2022
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Willemsen, P. W.J.M. (author), Smits, B. P. (author), Borsje, B. W. (author), Herman, P.M.J. (author), Dijkstra, J. T. (author), Bouma, T. J. (author), Hulscher, S. J.M.H. (author)Salt marshes can contribute to coastal protection, but the magnitude of the protection depends on the width of the marsh. The cross-shore width of the marsh is to a large extent determined by the delicate balance between seaward expansion and landward retreat. The influence of the magnitude of daily occurring mild weather conditions and...journal article 2022
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Elmilady, H.M.S.M.A. (author), van der Wegen, M. (author), Roelvink, D. (author), van der Spek, A. (author)Intertidal shoals are key features of estuarine environments worldwide. Climate change poses questions regarding the sustainability of intertidal areas under sea-level rise (SLR). Our work investigates the SLR impact on the long-term morphological evolution of unvegetated intertidal sandy shoals in a constrained channel-shoal system....journal article 2022
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- Gamal Mezieda, Mohammed (author), Siele, Meles (author), Crosato, A. (author) conference paper 2022
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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
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Paudel, Sandesh (author), Singh, Umesh (author), Crosato, A. (author), Franca, M.J. (author)Assuming that the equilibrium geometry of river channels does not depend on their initial state but solely on boundary conditions, several formulas have been derived that relate the channel depth and width to the river bankfull discharge and bed material. However, due to the existence of a threshold for sediment motion and the strong non...journal article 2022
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Zhang, Le (author)Estuarine intertidal flats comprise valuable ecosystems and act as an important sediment source for the adjacent salt marsh systems. However, accelerating sea-level rise threatens the mudflats and associated ecosystems, where the mudflat accretion lag behind sea level rise. A reliable forecast on the morphological developments of the mudflat...master thesis 2021
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Ye, Ni (author)In this thesis, sensitivity analysis is used to study the influences of parameters on specific outputs in the hydrodynamic model 3D DCSM-FM of the North Sea. The sensitivity analysis is the study of how uncertainty in the outputs of a model can be divided and allocated to different sources of uncertainty in its inputs. The software Delft3D FM is...master thesis 2021
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Slagmoolen, Daan (author)Ongoing sea level rise combined with significant levels of land subsidence cause the everlasting need for reinforcements of the current coastal protection measures to ensure a certain level of coastal safety. Developing countries in the Asian regions tend to suffer from even more severe levels of land subsidence and often lack the financial...master thesis 2021