Searched for: subject%3A%22nourishment%22
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Liptiay, E.J.A. (author), Blom, A. (author), Sloff, C.J. (author)
Over the past century, the main channel of the Waal has experienced erosion of approx-imately 1-2 metres (Ylla Arb´os et al., 2021; Chowdhury et al., 2023). This erosion leads to various problems such as instability of struc-tures or disruption to shipping. To address this ongoing degradation, a potential solution is the implementation of...
abstract 2024
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Ylla Arbos, C. (author), Schielen, R.M.J. (author), van Vuren, Saskia (author), Snoek, Yvo (author), Blom, A. (author)
Channel adjustment in engineered rivers is often associated with channel bed incision (e.g., Chowdhury et al., 2023, Czapiga et al., 2022a, 2022b, Ylla Arbós et al., 2021). Channel bed incision reduces the stability of in-river structures, exposes river-crossing cables and pipelines, and the spatial variability of channel bed incision due to...
abstract 2024
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Stive, M.J.F. (author), De Vriend, H.J. (author), Nicholls Robert, J. (author), Capobianco, M. (author)
conference paper 1993
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Capobianco, M. (author), De Vriend, H.J. (author), Nicholls Robert, J. (author), Stive, M.J.F. (author)
conference paper 1994
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Bijker, E.W. (author), Van der Leijé, J.P. (author), Pilon, J.J. (author), Svasek, J.N. (author), In 't Veld, J.K. (author), Verhagen, H.J. (author)
When longshore sediment transport is interrupted by a construction along a coast, e.g harbour moles or a dredged approach channel, the equilibrium of the coastline may be disturbed. When the disruption is caused by breakwaters, the longshore transport that is held back will cause accretion updrift of the breakwaters and erosion downdrift of them...
conference paper 1981
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Suzuki, T. (author), Verwaest, T. (author), Veale, W. (author), Trouw, K. (author), Zijlema, M. (author)
In this paper, the effect of beach nourishment on wave overtopping in shallow foreshores is investigated with the nonhydrostatic wave-flow model SWASH. Firstly, the applicability of SWASH to model wave overtopping is tested by comparing results with a physical model setup with different storm wall heights on top of an impermeable sea dike. The...
conference paper 2012
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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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De Schipper, M.A. (author), De Vries, S. (author), Stive, M.J.F. (author), De Zeeuw, R.C. (author), Rutten, J. (author), Ruessink, B.G. (author), Aarninkhof, S.G.J. (author), Van Gelder-Maas, C. (author)
Large (mega-scale) nourishments have been proposed as a promising alternative for traditional beach and shoreface nourishments, especially for locations with large structural erosion and sufficient sediment to dredge. This paper examines the initial bathymetric evolution of the Sand Engine, a mega-nourishment of 17 million m3 protruding almost 1...
conference paper 2014
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De Sonneville, B. (author), Van der Spek, A.J.F. (author)
The Dutch coastal maintenance policy which was implemented in 1990 aims at fighting structural erosion by nourishing sand. Initially, the beaches were nourished. The lifetime of these beach nourishments turned out to be relatively short (~2 yrs), especially at identified erosion ‘hotspots’ along the North-Holland coast (e.g. Egmond aan Zee)....
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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Stive, M.J.F. (author), De Schipper, M.A. (author), Luijendijk, A.P. (author), Ranasinghe, R.W.M.R.J.B. (author), Aarninkhof, 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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Wengrove, M.E. (author), Henriquez, M. (author), De Schipper, M.A. (author), Holman, R. (author), Stive, M.J.F. (author)
The Sand Engine is a mega-nourishment constructed in 2011 with the purpose of replenishing the surrounding southern Dutch coast by exploiting the strength of local alongshore currents for the next 20 years. Long term monitoring of the Sand Engine depends upon remote sensing coupled with in-situ measurements due to both its large spatial and...
conference paper 2013
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Aarninkhof, S.G.J. (author), Allewijn, R. (author), Kleij, A.M. (author), Stive, M.J.F. (author), Baptist, M.J. (author)
With 80% of the world's population living in lowland urban areas by 2050, sea levels gradually rising and societal demands on the quality of living increasing, sustainable development of coastal zones becomes increasingly urgent as well as complex. Modern strategies for the design and implementation of measures for infrastructure development,...
conference paper 2012
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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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Hoekstra, R. (author), Walstra, D.J.R. (author), Swinkels, C.S. (author)
In October and November 2009 a pilot project has been executed at the Delfland Coast in the Netherlands, constructing three small sandy headlands called Sand Groynes. Sand Groynes are nourished from the shore in seaward direction and anticipated to redistribute in the alongshore due to the impact of waves and currents to create the sediment...
conference paper 2012
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Roelse, P. (author), Verhagen, H.J. (author)
In the Netherlands much land was captured from the sea. At the same time however along the coast severe losses of land occurred. The main reasons were sea level rise and effects of decreasing tidal volumes of estuaries. Besides there were the local effects of shifting tidal channels and periodical movements of the coastline. Building of groynes,...
conference paper 1991
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Walstra, D.J.R. (author), Hoyng, C.W. (author), Tonnon, P.K. (author), Van Rijn, L.C. (author)
This experimental study focuses on the morphological development of a near-equilibrium profile on which to types of shoreface nourishments are placed. As previous studies have indicated that the efficiency of nourishments is mainly influenced by water depth in which they are constructed, two cross-shore locations are considered for an accretive...
conference paper 2011
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Verhagen, H.J. (author)
The government of The Netherlands has decided in the summer of 1990 to maintai.n the coastline at the position of 1990. This will be done mainly by artificial beach nourishment. The costs will be paid by the national government. The purpose of this coastal maintenance is to maintain a sufficient level of safety and to maintain the various...
conference paper 1991
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De Schipper, M.A. (author), De Vries, S. (author), Ranasinghe, R.W.M.R.J.B. (author), Reniers, A. (author), Stive, M.J.F. (author)
The present paper examines the generation and inter-annual evolution of alongshore variability in topography measured after the implementation of a sand nourishment. The magnitude of the topographic variability is quantified using 3.5 years of monthly survey data. The emergence and temporal change in alongshore morphological variability is...
conference paper 2013
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Ferreira, M. (author), Coelho, C. (author), Silva, P.A. (author)
Barra-Vagueira coastal stretch, located downdrift of the Aveiro Harbour, NW coast of Portugal, is anerosion hotspot, presenting,in the last 50 years,erosion rates that reached 8m/year(Santoset al.,2014).Thiscoast is subject to a very energetic wave climate, inducing a net littoral transport from North to South that reaches valuesaround 106m3...
conference paper 2021
Searched for: subject%3A%22nourishment%22
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