Modeling of wave attenuation by vegetation with XBeach

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...

Observations and modeling of steep-beach grain-size variability

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...

Modeling Swash zone sediment transport at Truc Vert beach

A one-dimensional hydrostatic version of the XBeach model (Roelvink et al., 2009) is applied to hindcast swash morphodynamics measured during an accretive, and an erosive tide at Le Truc Vert beach (France) in early spring 2008 (Masselink et. al, 2009; Blenkinsopp et al., 2011). Swash hydrodynamics are solved by applying the nonlinear shallow...

Modelling Sediment Transport in the Swash Zone

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...

Fieldwork Coastal Engineering: Varna (Bulgaria)

A series of hydraulic measurements were carried out during the field trip, ranging from beach profiles to wave data collection and suitability of stones from local quarries for hydraulic purposes. In chapter 2 something is told about the tetrapods. At Sunny Day Beach in St. Constantine some sightseeing has been done on a breakwater. The quality...

Wenselijkheid en haalbaarheid van verwijdering van de Rozenburgse sluis: Deelstudie 1 - nut en noodzaak

De haven van Rades (Tunesië)

Nabij Tunis, de hoofdstad van Tunesië (Noord-Afrika), bevinden zich drie haventerreinen die gezamenlijk het complex Tunis/La Goulette/Radès vormen. De haven van Tunis wordt binnenkort gesloten voor commercieel scheepvaartverkeer. De in 1986 geopende haven van Radès is opgebouwd uit twee aparte haventerreinen, een gespecialiseerd terrein voor de...