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Nederhoff, C.M. (author), van Ormondt, M. (author), Veeramony, Jay (author), van Dongeren, Ap (author), Antolínez, José A. Á. (author), Leijnse, Tim (author), Roelvink, D. (author)Tropical-cyclone impacts can have devastating effects on the population, infrastructure, and natural habitats. However, predicting these impacts is difficult due to the inherent uncertainties in the storm track and intensity. In addition, due to computational constraints, both the relevant ocean physics and the uncertainties in meteorological...journal article 2024
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Reyns, J.A.H. (author), McCall, Robert (author), Ranasinghe, Roshanka (author), van Dongeren, Ap (author), Roelvink, D. (author)An unstructured hydrodynamic model is presented that is able to simulate 2D nearshore hydrodynamics on the wave group scale. A non-stationary wave driver with directional spreading, with physics similar to XBeach (Roelvink et al., 2009) is linked to an improved and extended version of the existing unstructured flow solver Delft3D–FM (Kernkamp...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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Leibbrandt, Louise (author), Zhang, S. (author), Roelvink, M.A.T. (author), Bergkamp, Stan (author), Li, Xinqi (author), Bisschop, Lieselot (author), Wingerde, Karin van (author), Wang, H. (author)This paper aims to understand to what extent the amount of drug (e.g., cocaine) trafficking per country can be explained and predicted using the global shipping network. We propose three distinct network approaches, based on topological centrality metrics, Susceptible-Infected-Susceptible spreading process and a flow optimization model of...conference paper 2023
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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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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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Huijten, Esmee (author), Roelvink, Yannick (author), Brackenhoff, Stefanie A. (author), Zaalberg, S.L. (author), Doing, Anne Kee (author), Baselmans, J.J.A. (author), Karatsu, K. (author), Pascual Laguna, A. (author), van Hoven, M.B. (author), Endo, A. (author)The next technological breakthrough in millimeter–submillimeter astronomy is three-dimensional imaging spectrometry with wide instantaneous spectral bandwidths and wide fields of view. The total optimization of the focal-plane instrument, the telescope, the observing strategy, and the signal-processing software must enable efficient removal...journal article 2022
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Matsuba, Yoshinao (author), Roelvink, D. (author), Reniers, A.J.H.M. (author), Rijnsdorp, D.P. (author), Shimozono, Takenori (author)Understanding directional spectra of infragravity (IG) waves composed of free and bound components is required due to their impacts on various coastal processes (e.g., coastal inundation and morphological change). However, conventional reconstruction methods of directional spectra relying on linear wave theory are not applicable to IG waves...journal article 2022
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Elghandour, A. (author), Hinson, S.K. (author), Roelvink, D. (author), Reyns, J. (author), Costas, S. (author)In the light of climate change, sea-level rise, and human interventions, increasing the predictability of the coastline evolution on a temporal scale from years to decades are highly demanding for adaptation planning. However the rapid development in the coastal modelling capabilities, more efforts are needed to bridge the gap between the...conference paper 2021
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Pearson, S.G. (author), Elias, E.P. (author), van Ormondt, M. (author), Roelvink, F.E. (author), Lambregts, P. (author), Wang, Z.B. (author), van Prooijen, B.C. (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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Ranjha, Sayra (author), Hoveling, V.T. (author), van Gelderen, B.E. (author), van de Bult, F.J. (author), den Ouden-van der Horst, D. (author), Smet, C.O. (author), Roelvink, M.A.T. (author), Bakker, I.P. (author)We present our short series of interactive animations on directional derivatives and level curves. This visualisation was developed for students of first-year mathematics courses at the Delft University of Technology. The interactive animation is an animated video that can be interacted with while it is paused or playing. The user can change,...conference paper 2021
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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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Roelvink, Floortje E. (author), Storlazzi, Curt D. (author), van Dongeren, Ap R. (author), Pearson, S.G. (author)Coral reefs are effective natural coastal flood barriers that protect adjacent communities. Coral degradation compromises the coastal protection value of reefs while also reducing their other ecosystem services, making them a target for restoration. Here we provide a physics-based evaluation of how coral restoration can reduce coastal flooding...journal article 2021
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Nguyen, T.D. (author), Jacobsen, Niels G. (author), Roelvink, D. (author)This study aims at developing a new set of equations of mean motion in the presence of surface waves, which is practically applicable from deep water to the coastal zone, estuaries, and outflow areas. The generalized Lagrangian mean (GLM) method is employed to derive a set of quasi-Eulerian mean three-dimensional equations of motion, where...journal article 2021
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Nguyen, T.D. (author), Reniers, A.J.H.M. (author), Roelvink, D. (author)In numerical ocean models, the effect of waves on currents is usually expressed by either vortex-force or radiation stress representations. In this paper, the differences and similarities between those two representations are investigated in detail in conditions of both conservative and nonconservative waves. In addition, comparisons between...journal article 2021
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Beselly, S.M. (author), van der Wegen, Mick (author), Grueters, Uwe (author), Reyns, J.A.H. (author), Dijkstra, Jasper (author), Roelvink, D. (author)This article presents a novel approach to explore mangrove dynamics on a prograding delta by integrating unmanned aerial vehicle (UAV) and satellite imagery. The Porong Delta in Indonesia has a unique geographical setting with rapid delta development and expansion of the mangrove belt. This is due to an unprecedented mud load from the LUSI...journal article 2021
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Thanh, Vo Quoc (author), Roelvink, D. (author), van der Wegen, M. (author), Reyns, J.A.H. (author), Reyns, Johan (author), Kernkamp, Herman (author), Van Vinh, Giap (author), Thi Phuong Linh, Vo (author)Building high dykes is a common measure of coping with floods and plays an important role in agricultural management in the Vietnamese Mekong Delta. However, the construction of high dykes causes considerable changes in hydrodynamics of the Mekong River. This paper aims to assess the impact of the high-dyke system on water level fluctuations...journal article 2020
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Elghandour, A.M.M.A. (author), Roelvink, D. (author), Huisman, B.J.A. (author), Reyns, J.A.H. (author), Costas, Susana (author), Nienhuis, Jaap (author)Prediction of the shoreline response behind offshore breakwaters is essential for coastal protection projects. Due to the complexity of the processes behind the breakwaters (e.g., wave diffraction, currents, longshore transport), detailed modelling needs high computational efforts. Therefore, simplifying the process effect in a simpler...journal article 2020
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Huijten, Esmee (author), Roelvink, Yannick (author), Brackenhoff, Stefanie A. (author), Bakx, Tom J.L.C. (author), Zaalberg, Stan (author), Baselmans, J.J.A. (author), Karatsu, K. (author), van Hoven, M.B. (author), Endo, A. (author)The next technological breakthrough in millimeter-submillimeter astronomy is 3D imaging spectrometry with wide instantaneous spectral bandwidths and wide fields of view. The total optimization of the focal-plane instrument, the telescope, the observing strategy, and the signal-processing software must enable efficient removal of foreground...conference paper 2020
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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 vital components of estuaries. Tides, waves, and sediment supply shape the profile of estuarine shoals. Ensuring their sustainability requires an understanding of how such systems will react to sea level rise (SLR). In contrast to mudflats, sandy shoals have drawn limited attention in research. Inspired by a channel...journal article 2020