Searched for: subject:"XBeach"
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McCall, R.T. (author)
The primary objective of this thesis is to generate a 2DH-numerical model to simulate dune overwash. The first stage in this is achieved by modifying the program code of an existing overwash model in development, XBeach, to enable 2DH calculations. In the second stage the hydrodynamics of the model are verified using theoretical and laboratory...
master thesis 2008
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Smit, P.B. (author)
The Indian Ocean Tsunami has once again revived the discussion in the tsunami modelling community if the non-linear shallow water equations are a valid model for the propagation of tsunamis. It is suggested that the mechanism of frequency dispersion which is absent in these equations might be important in the correct modelling of large scale...
master thesis 2008
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Pool, A.D. (author)
After a storm surge in November 2007, older storm surge deposits were discovered in the eroded dunes near Heemskerk, the Netherlands. These deposits undulate in height with a maximum elevation of over 6 m above mean sea level. Luminescence dating suggests that the layers were deposited by either the 1775 or the 1776 storm surge. The aim of this...
master thesis 2009
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Voukouvalas, E. (author)
The storm surge early-warning system that is going to be established in the Netherlands, combines the accurate weather forecast with the hydrodynamic and morphodynamic models in an operational mode, in order to estimate the potential impact on the coasts. This study focuses on the morphodynamic validity of the operational model system, by...
master thesis 2010
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Pomeroy, A.W.M. (author)
Reef systems have been estimated to exist along approximately 80% of the world’s coastlines with living coral reefs, relic limestone platforms and submerged rock formations being the most common types observed. The processes of wave breaking on a reef crest, setup on a reef and flow over and within a lagoon, have been the primary focus of...
master thesis 2011
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Van Rooijen, A.A. (author)
The swash zone is the part of the beach that reaches from the limit of wave run-up until the limit of wave run-down. It is recognized as being a dynamic area of the nearshore region, characterized by strong and unsteady flows, high turbulence levels, large sediment transport rates and morphological changes on a small timescale. Due to the...
master thesis 2011
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De Vries, B.B. (author)
During a storm dunes erode and provide sediment to the beach. The foreshore rises and the wave height decreases. Subsequently the wave-induced water level setup increases. Seawalls do not erode. The waves in front of the seawall remain high throughout the storm and the wave-induced water level setup hardly changes. Over a dune-dike connection a...
master thesis 2011
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Riesenkamp, M.J. (author)
The long series (>30 year) of measurement data of erosion events at Narrabeen beach (NWS, Australia) provides insight in erosion volumes and their return periods in this area. The aim of this study was to replicate these data using XBeach in order to assess the validity of both the Joint Probability Model (JPM) and XBeach on beaches such as...
master thesis 2011
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Blossier, B. (author)
A large number of beach morphologies across the world exhibits nearshore sandbars with complex 3D patterns. During large storms, these shapes disappear and the bars get to a certain extent alongshore uniform. This phenomenon is called a reset. Numerous studies have been conducted on the development of the bar shapes (3D) or on the cross-shore...
master thesis 2011
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Winter, G. (author)
Rip currents are narrow, seaward directed flows in the surf zone that can pose a serious threat to swimmers. This issue has received attention particularly on swell dominated coasts (such as the US, Australia, France and UK) where numerous field experiments have been undertaken. However, the threat of rip currents is less recognised on wind-sea...
master thesis 2012
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Sasso, R. (author)
Rip currents are seaward directed flows of water that traverse the surf zone, and in many cases pose potentially dangerous conditions for swimmers and beach users. The present study is carried out focusing on Perranporth beach, UK, which is known to present quite strong rip current events that have been the culprits of large numbers of incidents...
master thesis 2012
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Den Bieman, J.P. (author)
Barrier islands are important features in the coastal zone, among others because they shelter the mainland from waves and storm surge. Thus, the degradation of barrier islands can pose a threat to coastal safety. Hence, there is a societal demand for understanding and predicting barrier island evolution. High energy events, such as storms and...
master thesis 2012
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Morris, J.C. (author)
Our understanding of nearshore coastal zone processes can be improved significantly with the availability of high spatiotemporal resolution bathymetry data. This high resolution data can be used for validation and calibration of numerical models, for providing forecasts of hydrodynamic conditions and morphological development, and for monitoring...
master thesis 2013
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Bodde, W.P. (author)
Coral reefs are highly valuable structures in many respects and it is increasingly important to understand hydrodynamics and morphodynamics around reefs to be able to better protect them and their hinterland. Flume experiments were performed on a scaled fringing reef in the laboratory facilities of Deltares in Delft. The objective of this thesis...
master thesis 2013
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Vrolijk, E.F. (author), Poelhekke, L. (author), Schlepers, M.H. (author), De Boer, G.G. (author)
In the North of Cuba, the Oasis beach area is situated. The beach suffers from structural erosion and earlier measures to deal with this have not succeeded. In this project, a solution is offered to reach two goals: foremost, a beach improvement to the Oasis beach sector and second, a halt to the structural erosion in the sector in order to...
student report 2014
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Stuij, S.A. (author)
The Santo André Lagoon is one of many inlets and lagoons that can be found along the along the Atlantic coast of Portugal. These coastal systems have a large ecological value and are important for rich biodiversity. The Santo André Lagoon is part of a natural reserve that is officially under protection of the country. It has a rich flora and...
master thesis 2014
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De Vet, P.L.M. (author)
Currently, morphodynamic models as XBeach show substantial overestimations of the erosion rates during breaching and overwash events at barrier islands. The presently used limitations on the Shields parameter and the sediment concentration do hinder erosion, but have undesirable side effects, e.g. the breaching process is suppressed. By...
master thesis 2014
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Kolijn, D.J. (author)
The following research focuses on artificial underwater structures (a.k.a. artificial reefs) in a coral reef environment to mitigate the natural and anthropogenic pressures which reef systems are increasingly facing worldwide. The research question is stated as: “Establishing a method to determine if a multipurpose artificial underwater...
master thesis 2014
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Van Verseveld, H.C.W. (author)
Hurricane Sandy (2012), which made landfall in New Jersey on October 29th, made devastating impact on the East Coast of the USA and struck major parts of New York City, including the economic centre of Manhattan. The total damage (in the USA and Caribbean) is in excess of 100 billion US$ with estimates ranging between 78 and 97 billion US$ for...
master thesis 2014
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Nederhoff, C.M. (author)
Many of the most densely populated areas are located near the coast. Climate change and population growth put more and more pressure on these coastal areas. As free space is becoming sparse, coastal disaster risk reduction plans need to be spatially efficient. In this thesis the sandy coast with hard structures, such as buildings or dune...
master thesis 2014
Searched for: subject:"XBeach"
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