Searched for: author%3A%22Van+Thiel+de+Vries%2C+J.S.M.%22
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Baart, F. (author), van Ormondt, M. (author), van Thiel De Vries, J.S.M. (author), van Koningsveld, M (author)
People living behind coastal dunes depend on the strength and resilience of dunes for their safety. Forecasts of hydrodynamic conditions and morphological change on a timescale of several days can provide essential information to protect lives and property. In order for forecasts to protect they need be relevant, accurate, provide lead time,...
journal article 2016
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van Rooijen, A.A. (author), McCall, R.T. (author), van Thiel De Vries, J.S.M. (author), van Dongeren, AR (author), Reniers, A.J.H.M. (author), Roelvink, D. (author)
Aquatic vegetation in the coastal zone attenuates wave energy and reduces the risk of coastal hazards, e.g., flooding. Besides the attenuation of sea-swell waves, vegetation may also affect infragravity-band (IG) waves and wave setup. To date, knowledge on the effect of vegetation on IG waves and wave setup is lacking, while they are potentially...
journal article 2016
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Van Rooijen, A.A. (author), Van Thiel de Vries, J.S.M. (author), McCall, R.T. (author), Van Dongeren, A.R. (author), Roelvink, J.A. (author), Reniers, A.J.H.M. (author)
Over the past decades the effect of vegetation (e.g. kelp, mangroves, sea grass) on nearshore coastal processes has received more and more attention. In recent years several numerical wave models have been extended to include this effect. In the current study, the numerical storm impact model XBeach was extended with formulations found in...
conference paper 2015
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Kaji, A.O. (author), Luijendijk, A.P. (author), van Thiel de Vries, J.S.M. (author), De Schipper, M.A. (author), Stive, M.J.F. (author)
The Sand Motor is a pilot project of a ‘mega-nourishment’ built in the Dutch coast in 2011. In order to understand which conditions reshape those mega-nourishments the influence of different types of forcing on the longshore sediment transport along the Sand Motor has been assessed in this paper using a process-based model. The use of numerical...
conference paper 2014
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Bodde, W.P. (author), Pomeroy, A.W.M. (author), Van Dongeren, A.R. (author), Lowe, R. (author), van Thiel de Vries, J.S.M. (author)
Coral reefs are highly valuable ecosystems, which are under an increasing number of environmental pressures. Sedimentation and sediment transport patterns are among key physical drivers of coral reefs, so it is important to improve our understanding of these poorly studied dynamics on reefs. To this purpose, flume experiments were performed on a...
conference paper 2014
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Van Geer, P.F.C. (author), Van Thiel de Vries, J.S.M. (author), Boers, M. (author), Den Bieman, J.P. (author), McCall, R.T. (author)
This paper presents adaptations to the XBeach model aimed at including the relevant processes for the generation of scour holes at the toe of a revetment. Dutch assessment rules for the safety of sea defenses need to be adjusted to cope with a combination of sandy dunes and hard elements. To that end, the XBeach model is prepared to be...
conference paper 2014
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Radermacher, M. (author), Wengrove, M. (author), Van Thiel de Vries, J.S.M. (author), Holman, R. (author)
In the framework of swimmer safety, coastal managers desire accurate nearshore current predictions obtained from numerical models. To this end, detailed and up-to-date bathymetry is a necessity. Remote sensing techniques for bathymetry estimation are a promising solution. The focus of this paper is to assess the performance of wavenumberbased...
conference paper 2014
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Van Dongeren, A. (author), Van Ormondt, M. (author), Sembiring, L. (author), Sasso, R. (author), Austin, M. (author), Briere, C. (author), Swinkels, C. (author), Roelvink, J.A. (author), Van Thiel De Vries, J.S.M. (author)
This paper describes the development of a physics-based rip current prediction system called CoSMoS. This system consists of a hydrodynamic prediction system which is composed of a train of surge and wave models from the global scale to the scale of a beach resort (order kilometers). For the beach resort scale model, it is of utmost importance...
conference paper 2013
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Hoonhout, B.M. (author), De Vries, S. (author), Baart, F. (author), Van Thiel De Vries, J.S.M. (author), Van der Weerd, L. (author), Wijnberg, K. (author)
Existing aeolian transport formulae tend to overestimate the sediment transport volumes in coastal environments. Supply limiting factors like moisture content, shell patches, sediment sorting, vegetation and morphological features are believed to explain these overestimations. These supply limitations act on a variety of spatio-temporal scales...
conference paper 2013
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De Vries, S. (author), Van Thiel de Vries, J.S.M. (author), Ruessink, G. (author)
This paper aims to conceptually simulate observed spatial and temporal variability in aeolian sediment transport rates, erosion and deposition on a beach. Traditional strategies of modeling aeolian sediment transport rates do not account for supply limitations that are common on natural beaches. A recently developed 1D linear advection model is...
conference paper 2013
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Huisman, B.J.A. (author), Van Thiel De Vries, J.S.M. (author), Walstra, D.J.R. (author), Roelvink, J.A. (author), Ranasinghe, R.W.M.R.J.B. (author), Stive, M.J.F. (author)
Understanding of the behaviour of coastline perturbations at soft-coastlines is essential for modelling coastal evolution at decadal time scales. Many coastline models do, for example, implicitly assume dominant diffusive behaviour of coastline features. The validity of this assumption is investigated for the Dutch coast on the basis of data on...
conference paper 2013
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Mil Homens, J.P. (author), Ranasinghe, R.W.M.R.J.B. (author), Van Thiel de Vries, J.S.M. (author), Stive, M.J.F. (author)
Longshore sediment transport (LST) is one of the main drivers of beach morphology. Bulk LST formulas are routinely used in coastal management/engineering studies to assess LST rates and gradients. However, there is still great uncertainty in LST estimation with these bulk formulas. This uncertainty may have two sources: 1) experimental errors in...
conference paper 2013
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Stive, M.J.F. (author), De Schipper, M.A. (author), Luijendijk, A.P. (author), Ranasinghe, R.W.M.R.J.B. (author), Van Thiel De Vries, J.S.M. (author), Aarninkhof, S. (author), Van Gelder-Maas, C. (author), De Vries, S. (author), Henriquez, M. (author), Marx, S. (author)
The Netherlands’ strategy to combat coastal erosion since 1990 has been through nourishment, initially as beach nourishments but more and more as shoreface nourishments. In the light of sea level rise projections the yearly nourishment magnitudes continue to increase. In view of this an innovative soft engineering intervention, comprising an...
conference paper 2013
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Roelvink, D. (author), Den Heijer, C. (author), Van Thiel De Vries, J.S.M. (author)
Land reclamations and island coasts often involve strongly curved shorelines, which are challenging to be properly modeled by numerical morphological models. Evaluation of the long term development of these types of coasts as well as their response to storm conditions requires proper representation of the governing physical processes. Not all...
conference paper 2013
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Reniers, A.J.H.M. (author), Gallagher, E.L. (author), MacMahan, J.H. (author), Brown, J.A. (author), Van Rooijen, A.A. (author), Van Thiel de Vries, J.S.M. (author), Van Prooijen, B.C. (author)
Novel observations of surface grain-size distributions are used in combination with intra-wave modeling to examine the processes responsible for the sorting of sediment grains on a relatively steep beach (slope?=?1:7.5). The field observations of the mean grain size collected with a digital camera system at consecutive low and high tides for a 2...
journal article 2013
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Pomeroy, A.W.M. (author), van Dongeren, A. (author), Lowe, R.J. (author), Van Thiel de Vries, J.S.M. (author), Roelvink, J.A. (author)
Low frequency wave resonance has been postulated to enhance damage to coral reef protected coastlines during storm events. This paper uses the numerical model XBeach to examine the dynamics that contribute to resonance that have been previously observed on a fringing reef on Guam during tropical storm Man-Yi (Péquignet et al., 2009). The methods...
conference paper 2012
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Winter, G. (author), van Dongeren, A. (author), de Schipper, M.A. (author), van Thiel de Vries, J.S.M. (author)
Rip currents are wave-induced and off-shore directed flows which occur frequently in the surf zone and can pose a serious threat to swimmers. While the behaviour of rip currents has been studied in swell-dominated environments, less is known about their characteristics in wind-sea dominated environments. This study aims to improve the knowledge...
conference paper 2012
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Muller, M.C. (author), Roelvink, D. (author), Luijendijk, A.P. (author), De Vries, S. (author), Van Thiel de Vries, J.S.M. (author)
In this paper, the aeolian transport model DUNE (Sauermann et al., 2001, Kroy et al., 2002) that describes important features and dynamics of typical desert dunes, is extended such that it can be applied in sandy coastal areas. Initial tests explore the limitations of the model in coastal areas after which adaptations are proposed and...
conference paper 2012
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Van Santen, R.B. (author), Steetzel, H.J. (author), Van Thiel de Vries, J.S.M. (author), Van Dongeren, A. (author)
Regular dune safety assessments in the Netherlands are presently based on a 1D model approach, which is insufficiently applicable for more complex coastal areas with structures, tidal channels or spatially strong varying bathymetry. These situations require more advanced methods to assess the safety in dune areas. In this study a 2DH XBeach...
conference paper 2012
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Walstra, D.J.R. (author), De Vroeg, J.H. (author), Van Thiel de Vries, J.S.M. (author), Swinkels, C. (author), Luijendijk, A.P. (author), De Boer, W.P. (author), Hoekstra, R. (author), Hoonhout, B. (author), Henrotte, J. (author), Smolders, T. (author), Dekker, F. (author), Godsey, E. (author)
In order to conceive any realistic plan for post-Katrina island restoration, it is necessary to understand the physical processes that move sand along the littoral drift zone off the coast of Mississippi. This littoral zone influences the character of the Mississippi barrier islands as they exist in an ever changing cycle. To help in this...
conference paper 2012
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