Dano J.A. Roelvink

Dano J.A. Roelvink
IHE Delft Institute for Water Education | UNESCO-IHE · Department of Water Science and Engineering

Prof. dr. ir.

About

321
Publications
115,416
Reads
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11,901
Citations
Citations since 2016
78 Research Items
7047 Citations
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201620172018201920202021202202004006008001,0001,200
201620172018201920202021202202004006008001,0001,200

Publications

Publications (321)
Article
Full-text available
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 in inte...
Article
Full-text available
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. Doin...
Preprint
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, wind and wave climatology reinforce the need to optimize the design and functionality of coastal protection works to increase resilience. Doing s...
Article
Full-text available
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. Utilizing a pr...
Poster
Full-text available
Over the last 30 years, this low lying country, has lost over 600km2 of mangrove coverage, 1 km of land has been reclaimed by the Atlantic Ocean and this stretch has suffered repeated overtopping events. In 2010, along several selected sites, mangroves were restored in sections seaward of the dykes by local authorities; and the evaluation of this e...
Article
Full-text available
A new set of empirical formulations has been derived to predict wave run-up at naturally sloping sandy beaches. They are obtained by fitting the results of hundreds of XBeach-NH+ model simulations. The simulations are carried out over a wide range of offshore wave conditions (wave heights ranging from 1 to 12 m and periods from 6 to 16 s), and surf...
Article
Predicting hydrodynamic forces from ship waves along a waterway is essential for managing a sustainable shoreline in fairways. In this context, a numerical model can be a useful tool for calculating ship waves in fairways with complex geometry. XBeach is a numerical model offering the potential to be a one-tool solution for simulating ship waves fr...
Article
Full-text available
The sediment carrying capacity is one of the fundamental issues in sediment simulation. It is of great importance both in theory and practice to develop process-based approaches for the sediment carrying capacity for a wider range of silt-sand sediment. The current study focuses on the approach for depth-averaged concentration of silt-sand sediment...
Article
Full-text available
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 differ...
Article
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This review focuses on recent advances in process-based numerical models of the impact of extreme storms on sandy coasts. Driven by larger-scale models of meteorology and hydrodynamics, these models simulate morphodynamics across the Sallenger storm-impact scale, including swash, collision, overwash, and inundation. Models are becoming both wider (...
Article
Fluvial, tidal, and combined hydro-morphodynamics interaction in a complex, seasonal, sediment transport regime has been the subject of extensive research. It becomes particularly challenging when there is limited data. The Ganges-Brahmaputra-Meghna (GBM) Delta is one example of a huge system lacking data. Bathymetric data simultaneously covering t...
Thesis
Coastal shorelines play a significant role in shaping the future of seaside cities and towns due to coastline variations generated by large-scale human interventions, climate change, and sea-level rise. There are many challenges in forecasting coastal changes with the desired accuracy, given the epistemic and intrinsic uncertainties associated with...
Conference Paper
Full-text available
The uncertainty surrounding the impact of sea-level-rise (SLR) and storms, which threaten the coastal hinterland, heightens the need for design guidelines on mangroves adaptation and their use in coastal safety. Mangrove forests, well known as coastal ecosystem defences, attenuate the hydrodynamic forces, reduce coastal erosion and foster condition...
Article
Full-text available
The main focus in this research is to implement the sequential data assimilation (DA) method, Ensemble Kalman Filter, in the free-form ShorelineS coastline evolution models (Roelvink, et al., 2020). ShorelineS is flexible and can simulate the effect of hard structures and river inlets also can handle the splitting and joining of shorelines with dis...
Conference Paper
Full-text available
The Porong Delta in Indonesia has been experiencing a rapidly prograding delta along with mangrove expansion in 15 years. It was triggered by an extreme mud volcanic eruption called LUSI. This eruption was at a peak rate of up to 180,000 m3/day in 2006 and declined to 50,000m3 in September 2011. LUSI is still actively erupting at a considerably red...
Article
Full-text available
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 In-donesia 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 mud vol...
Article
Full-text available
Short-term beach morphodynamics are typically modelled solely through storm-induced erosion, disregarding post-storm recovery. Yet, the full cycle of beach profile response is critical to simulating and understanding morphodynamics over longer temporal scales. The XBeach model is calibrated using topographic profiles from a reflective beach (Faro B...
Article
Full-text available
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 effects...
Article
A new semi-empirical storm surge prediction (SESSP) method is presented that computes tropical cyclone induced storm surge levels as a function of space and time for various storm and geometry input parameters. It distinguishes between five components that contribute to the total surge: the normal, parallel, radial, Ekman, and inverse barometer sur...
Article
Full-text available
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 coastline mo...
Article
Full-text available
Delft3D Flexible Mesh (DFM) was used in 2D to compute hydrodynamics and sediment transport in the Mekong Delta. DFM is a process-based model which is solves the two- and three-dimensional shallow equations, based on the finite volume method (Kernkamp et al., 2011).The computational grid covers the entire Mekong Delta, from Kratie, Cambodia to East...
Poster
https://agu2020fallmeeting-agu.ipostersessions.com/default.aspx?s=6D-64-B8-C9-6A-84-17-D8-B8-26-82-02-7F-22-39-C4
Poster
Full-text available
Determination of biophysical properties of mangroves, e.g. tree height and diameter at breast height, is necessary for assessing mangrove ecosystem dynamics and growth. However, traditional surveying methods (e.g. diameter at breast height, location with GPS, and tree’s height with hypsometer) are time consuming and expensive. In this research we a...
Conference Paper
Full-text available
We observed that, in over 12 years, the LUSI-based sediments generated a new delta with a total area of approximately 1.75 km2 compared to 0.05 km2 before the eruption. Sediment trap dry volume measurement shows an average increase rate sedimentation of 17cm3/day. The regional climate conditions and added nutrient flux to the new delta have likely...
Article
Full-text available
With large-scale human interventions and climate change unfolding as they are now, coastal changes at decadal timescales are not limited to incremental modifications of systems that are fixed in their general geometry, but often show significant changes in layout that may be catastrophic for populations living in previously safe areas. This poses s...
Article
Full-text available
Vessel‐induced waves affect the morphology and ecology of banks and shorelines around the world. In rivers used as waterways, ship passages contribute to the erosion of unprotected banks, but their short‐ and long‐term impacts remain unclear. This work investigates the effects of navigation on bank erosion along a reach of the regulated Meuse River...
Article
Full-text available
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‐shoal syst...
Article
Full-text available
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 and ti...
Article
Understanding the long-term morphodynamic evolution of tidal inlet systems and their control mechanisms has great significance in the management and sustainable development of coastal regions. This study addresses this issue by applying a process-based morphological model (Delft3D) to hindcast morphodynamic evolution of the Laolonggou tidal inlet (...
Article
On October 29, 2012, storm surge and large waves produced by Hurricane Sandy resulted in the formation of a breach in eastern Fire Island, NY. The goals of this study are to gain a better understanding of the physical processes that govern breach behavior and to assess whether process-based models can be used to forecast the evolution of future bre...
Article
Full-text available
Intertidal mudflats are morphodynamic features present in many estuaries worldwide. Often located between vegetated shores and deep channels they comprise valuable ecosystems and serve to protect the hinterland by attenuating waves. Although mudflats are persistently present on yearly to decadal time scales, little is known on their morphodynamic a...
Article
The estuaries and coastal zones of the Vietnamese Mekong Delta located at the end of the Mekong Basin are susceptible to a large variety of natural threats and human interventions such as upstream dam construction, climate change and sea level rise. In this study, we investigated sediment dynamics and morphodynamic changes in the Mekong estuaries a...
Article
Full-text available
Wave run-up and dune overwash are typically assessed using empirical models developed for a specific range of often-simplistic conditions. Field experiments are essential in extending these formulae; yet obtaining comprehensive field data under extreme conditions is often challenging. Here, we use XBeach Surfbeat (XB-SB)—a shortwave-averaged but wa...
Article
Full-text available
Building high dykes is a common measure to cope with floods and plays an important role in agricultural management in the Vietnamese Mekong Delta. However, the construction of high dykes cause considerable changes in hydrodynamics of the Mekong River. Therefore, this paper aims to assess the impacts of the high dyke system on water level fluctuatio...
Article
Full-text available
A new dune profile model, Duna, is developed and coupled with the existing XBeach model, in which some key improvements allow a much better behaviour of the intertidal beach and the inclusion of structural erosion or accretion through a longshore transport gradient. The model is shown to represent typical behaviour of a beach-dune system in Praia d...
Article
Full-text available
In this study, we estimate the shoreline retreat, the vulnerability and the erosion rates of an open beach-dune system under projected sea level rise (SLR) and the action of wind-waves (separately and in combination). The methodology is based on the combination of two state-of-the-art numerical models (XBeach and Q2D-morfo) applied in a probabilist...
Article
Full-text available
Anticipated sea level rise (SLR) threatens intertidal areas and associated ecosystems in estuaries worldwide. There is a need to develop validated modeling tools to assess the impact of SLR on estuarine morphodynamics. This study explores the morphological impact of SLR on a channel-shoal system in San Pablo Bay, a subembayment of San Francisco Bay...
Article
In the light of challenges raised by a changing climate and increasing population pressure in coastal regions, it has become clear that theoretical models and scattered experiments do not provide the data we urgently need to understand coastal conditions and processes. We propose a Dutch coastline observatory named ICON.NL, based at the Delfland Co...
Conference Paper
Full-text available
The presence of mangrove-belts has been critical towards reducing flooding risk and maintaining valuable ecosystem services. However, anticipated sea-level-rise (SLR) scenarios pose questions on the resilience of mangrove-belts and the vulnerability of associated coastal environments. This study aims to fundamentally determine the bio-physical proc...
Article
Full-text available
This paper aims to fundamentally assess the resilience of salt marsh-mudflat systems under sea level rise. We applied an open-source schematized 2D area model (Delft3D) that couples intertidal flow, wave-action, sediment transport, geomorphological development with a population dynamics approach including temporal and spatial growth of vegetation a...
Article
Full-text available
Experiments and field observations have revealed that when silt and very fine sand are subject to oscillatory wave motion, a high shear flow layer and a high concentration layer (HCL) exist near the bottom. The behavior of the HCL is still under researched. Firstly, an intra-wave process based 1DV model was established for fine sediment transport u...
Article
This study evaluates the patterns and effects of relative sea-level rise on the tidal circulation of the basin of the Ria Formosa coastal lagoon using a process-based model that is solved on an unstructured mesh. To predict the changes in the lagoon tidal circulation in the year 2100, the model is forced by tides and a static sea level. The bathyme...
Conference Paper
Full-text available
The prediction of wave run-up is typically done using empirical formulations; however, as environments become more complex, the applicability of these relationships becomes uncertain. Field experiments are essential in extending these formulations; yet obtaining comprehensive field data under extreme conditions often proves problematic. Numerical m...
Poster
Full-text available
Vegetated foreshores, e.g. mangroves and salt marshes, are critical towards reducing flooding risk. • They maintain valuable ecosystem services. • They allow for a flexible and adaptive response to climate change by: • Attenuating wave energy, • Stabilizing and heightening the foreshore at a rate that matches or exceeds that of SLR. • However over...
Article
Sediment incipient motion is a fundamental issue in sediment transport theory and engineering practice. Silt has transitional behavior between cohesive and non-cohesive sediment and its incipient motion is still poorly understood. This study aims to find an expression for incipient motion from silt to sand from a unified perspective and analysis. F...
Conference Paper
Berms on beaches are important since they provide recreational space and accommodation space for dune growth. Process-based models have got better at simulating multi-month to multi-year longshore bar behaviour and at predicting dune erosion, but are having difficulties representing the profiles in the intertidal area and swash zone. This is partic...
Article
Full-text available
Coastal zones are constantly changing in response to meteorological and hydrodynamic conditions. Water levels associated with storms, coupled with wind-driven waves, can significantly reshape coastal and deltaic geomorphology. Conversely, coastal wetlands attenuate waves, surge, and currents. These interactions have profound implications for ecosys...
Article
Full-text available
Climate change (CC) is likely to affect the thousands of bar-built or barrier estuaries (here referred to as Small tidal inlets - STIs) around the world. Any such CC impacts on the stability of STIs, which governs the dynamics of STIs as well as that of the inlet-adjacent coastline, can result in significant socio-economic consequences due to the h...
Article
Fluvial sediment is the major source for the formation and development of the Mekong Delta. This paper aims to analyse the dynamics of suspended sediment and to investigate the roles of different processes in order to explore flux pattern changes. We applied modelling on two scales, comprising a large-scale model (the whole delta) to consider the u...
Conference Paper
Rip currents are one of the most dangerous coastal hazards for swimmers. In order to minimize the risk, a coastal operational-process based-model system can be utilized in order to provide forecast of nearshore waves and currents that may endanger beach goers. In this paper, an operational model for rip current prediction by utilizing nearshore bat...
Article
Full-text available
In predicting storm impacts on sandy coasts, possibly with structures, accurate runup and overtopping simulation is an important aspect. Recent investigations (Stockdon et al., 2014; Palmsten and Splinter, 2016) show that despite accurate predictions of the morphodynamics of dissipative sandy beaches, the XBeach model (Roelvink et al., 2009) does n...
Article
Full-text available
Suspended sediment concentration is an important estuarine health indicator. Estuarine ecosystems rely on the maintenance of habitat conditions, which are changing due to direct human impact and climate change. This study aims to evaluate the impact of climate change relative to engineering measures on estuarine fine sediment dynamics and sediment...