On the redistribution and sorting of sand at nourishments: Field evidence and modelling of transport processes and bed composition change

Increasingly large sand nourishments are used for the maintenance of sandy coasts around the world. There is, however, still very limited understanding of their behaviour (i.e. redistribution) and effects on the marine environment. This PhD thesis explores the morphological reshaping of shoreface nourishments (i.e. long bunds of sand placed at...

A regional application of bayesian modeling for coastal erosion and sand nourishment management

This paper presents an application of the Bayesian belief network for coastal erosion management at the regional scale. A "Bayesian erosion management network" (BERM-N) is developed and trained based on yearly cross-shore profile data available along the Holland coast. Profiles collected for over 50 years and at 604 locations were combined...

Impact of sand nourishments on hydrodynamics and swimmer safety

Artificial sand nourishments are a common measure to mitigate coastal erosion problems. Such nourishments can have an impact on currents and waves near the beach, especially when the nourishment has a large size. As nourished beaches often have a recreational function, these altered wave and current patterns may pose a threat to swimmers. This...

Behaviour of subtidal sandbars in response to nourishments

The behaviour of subtidal sandbars can be strongly influenced by the introduction of sand nourishments in the coastal system. This study focuses on the impact of nourishments on subtidal bar behaviour at spatio-temporal scales beyond a single nourishment project. It aims to determine the long-term behaviour of subtidal sandbars along an entire...

The design of multi-value sand nourishments

Relative sea level rise and climate change, but also the migration of the growing world population to the coast, continuously increase the pressure on the coastal system. In combination with the increased awareness for sustainability, the interests in the coastal zone become integrated and complex. Integrated Coastal ZoneManagement (ICZM)...

Uncertainties in Building with Nature along the Coast: A case study of a sand nourishment project in Ystad, Sweden

Coastal erosion is a natural process caused by the actions of current and waves towards coastlines. Building with Nature (BwN), is an emerging methodology that utilizes natural process and natural materials to reduce the impacts of coastal erosion on nature and society. Because of the involvement of natural materials and natural processes, BwN...

Alongshore topographic variability at a nourished beach

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...

Pilot Project Sand Groynes Delfland Coast

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...

Voorspelinstrument duurzame vaarweg: Case study fixed layer and sediment nourishment in the Bovenrijn

Onderwatersuppleties: Ontwerprichtlijnen

Haalbaarheidsstudie geulwandsuppletie Oostgat

Meer zand met minder moeite: Innovatieve zandige maatregelen voor het kustbeheer van de toekomst

Development and application of a large-scale morphological model of the Dutch coast - phase 2: Formulation and application of the PONTOS model version 1.4

Zwemveiligheid megasuppletie Egmond: Onderzoek naar de effecten van een megasuppletie op de zwemveiligheid

Evaluation of nourishments at Egmond with Argus video monitoring and Delft3D-MOR

Water en zand in balans: Evaluatie zandsuppleties na 1990; een morfologische beschouwing

Na bijna 10 jaar ervaring met Dynamisch Handhaven is een evaluatie uitgevoerd die de gehele Nederlandse kust omvat. Eerdere evaluaties moesten beperkt blijven tot individuele suppleties en tot kusttrajecten waar enkele suppleties waren uitgevoerd. Bij de huidige evaluatie kon voor het eerst ook aandacht worden gegeven aan onderwatersuppleties....

Het morfologisch model UNIBEST-TC: De status in 2001

Video-based monitoring of the Egmond beach- and shoreface nourishments: Evaluation of the 1999 nourishments with the help of the Argus video system