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Cornielje, Floor (author)
The hydropower development in the Mekong Basin affects the silt and clay concentrations in the river which has ecological as well as socio-economic effects on the Mekong Delta and its inhabitants. Therefore, the first objective of this research was to obtain a better understanding of the effect of hydropower development on the silt and clay load...
master thesis 2023
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Pantova, Dona (author)
Due to their ecological significance and their role in providing grounds for a variety of human activities, understanding how tidal inlet systems evolve is of interest to scientists, engineers, and managers. The seabed profile in such systems evolves due to the erosion and deposition of sediment particles from and onto the seabed. Equivalently,...
master thesis 2021
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Lange, Lea (author)
Bathymetry strongly affects nearshore hydrodynamics that drive sediment transport. However, recent bed level information is not always available, especially not simultaneously resolved in space and time. Time series of radar backscatter images can be used to retrieve bed levels in the intertidal area with the so-called Temporal Waterline...
master thesis 2019
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van Bemmelen, Cas (author)
Beach scarps are nearly vertical seaward facing walls within the cross-shore beach profile. These features are often associated with eroding (nourished) coastlines and can reach heights of O(2-3 m), leading to serious hazards to beach users and negatively impacting local ecosystems. New insights into beach scarp morphodynamics related to...
master thesis 2018
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de Queiroz, Bruna (author)
Predictions of coastal morphology evolution are necessary to assess engineering solutions as well as understand coastal systems behaviors. Among the tools used to predict morphological evolution are the process-based models that make use of physical laws and empirical knowledge. Such models account for a considerable range of coastal processes...
master thesis 2017
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Ligthart, D. (author)
The Ayeyarwady River is a river with large hydrological variations and an abundance of relatively fine non-cohesive sediment, causing the dynamic behaviour of the river with fast shifting channels. This dynamic behaviour, together with the large hydrological variations, is the source of a frequently flooding river with a moderate navigability....
master thesis 2017
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Smits, B.P. (author)
Due to the removal of mangrove forests, the coastal zone of Demak district has suffered from severe erosion. One of the proposed solutions to restore the sediment balance and encourage mangrove re-establishment, is the construction of semi-permeable dams. This study aims to optimise the design of such structures. A 2DH site-specific model was...
master thesis 2016
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Kurniawan, V. (author)
The existence of tidal flat is beneficial for human beings, but it faces the risk of being vanished by continuous intervention, either by nature or human. Therefore, researches about tidal-flat’s morphodynamics are required for the sake of its preservation. Here, the subject of the research is the Kapellebank tidal flat in the Westerschelde...
master thesis 2016
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Doets, I.J.E. (author)
Controlling the distribution of water and sediment at river bifurcations is one of the main challenges in river engineering and management. This distribution affects the stability of river bifurcations as well as the distribution of flooding risk, navigability and environmental conditions. The governing factors are the hydrodynamics of the two...
master thesis 2015
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Mol, M. (author)
In this study, an improved error metric for morphodynamic models is introduced. Current error metrics, like the classical (Root) Mean Squared Error (RMSE), assume that predictions can be properly validated against observations by regarding the point-wise difference in bed level. This analysis inherently has the problem that phase differences of...
master thesis 2015
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Berkhout, B. (author)
River bed degradation is sometimes counteracted with nourishment of sediment material. Numerical models — which include Hirano’s sediment continuity model for mixed-size sediment — can be used to predict the transport of different sediment fractions (the waves due to spatial variations in the grain size distribution of the bed material are here...
master thesis 2015
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Broekema, Y.B. (author)
In this study a modelling approach was investigated that takes into account the effect of short wave grouping on long wave motions, calculating sediment transport and morphology with multiple fractions and a layered bed stratigraphy. After extensive testing and validating this model using data collected in a wave flume in Hannover this model was...
master thesis 2015
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Arailopoulos, I. (author)
Depth-averaged morphological computations using Delft3D tend to produce ‘strange’, results for river bends when the sediment transport formulas of Van Rijn are used. Even pools in inner bend regions and bars in outer bend regions can result from the model. The objective of the present thesis is to identify the cause of the problem and propose...
master thesis 2014
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Jiao, J. (author)
The Dutch Wadden Sea is consisting of 7 tidal inlet systems separated by sandy barrier islands. The general morphodynamics and hydrodynamics of tidal inlets are relatively well understood, but the detailed interactions remain a prominent research interest. In this study, process-based computer models are employed as a tool to investigate the...
master thesis 2014
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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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Post, S. (author)
The Colombian government aims to establish a connection that bridges the Atlantic Ocean and the Pacific Ocean. The new connection will largely take place on the current Atrato River, which has not yet been upgraded for a more extensive use of navigation in the near future. A bottleneck in the river is the delta area. Without structural dredging...
master thesis 2011
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Van den Heuvel, N.W. (author)
master thesis 2010
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França de Abreu, C. (author)
The objective of this study is to analyze and simulate the behavior of a non-equilibrium profile in a storm event, in particular, the Maasvlakte-2 (MV2). The MV2 is a large reclamation project at which both soft and hard sea-defenses are applied. Soft sea-defenses exhibit steep initial profiles during construction. Understanding how this sea...
master thesis 2010
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Van der Hout, C.M. (author)
For local protection of coastal stretches where buildings are situated in or form part of the coastal defense line the deep water reef concept has been developed. Two reef concepts were designed; a shore-parallel breakwater (of 3 km length) and a segmented breakwater (three blinds of 1 km length), both located in 10 m water depth at 1.5 km off...
master thesis 2008
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Nortier, R.J. (author)
The Wadden Sea is characterized by barrier islands separated by tidal inlets consisting of a system of inter-tidal flats and channels. It is an ecologically valuable area. Accelerated sea-level rise due to climate change combined with human interference which may cause land subsidence can have significant impact on the Wadden Sea system. A major...
master thesis 2004
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