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Acties	Details Titel A new sediment budget for the Netherlands: the effect of 15 years of nourishing (1991-2005) Auteur A.J.F. van der Spek Q. Lodder Opdrachtgever Rijkswaterstaat WVL Projectnummer 1220040 Plaats van uitgave Delft Uitgever Deltares Jaar van uitgave 2015 (april) Pagina's 17 p. Illustraties fig. Materiaal rapport Deltares Digitaal document Annotatie The research presented in this paper is part of the Dutch Coastal Management and Maintenance research program that is executed in collaboration between Deltares and Rijkswaterstaat Onderwerp sand transport, coastal nourishment, sediment concentrations, coastal erosion Beschrijving In 1990, the Dutch government decided to halt structural coastal erosion with sand nourishments. This report presents the sediment balance over the period 1990-2005, the first fifteen years of nourishing, in order to establish the results. The overall net sediment budget of the Dutch coast is still negative due to erosion of the lower shoreface and the ebb-tidal deltas (-159.8 million cubic meter). However, the budget shows that the accretionary status of the upper shoreface, beach and frontal dunes has changed to positive. The natural volume trend over the period 1990-2005 is -41.5 mcm. With a nourished volume of 118.6 mcm this zone has a net gain of 77.3 mcm. Especially the Holland coast has a very positive sediment budget: a gain of 23.3 mcm. The conclusion of this study is that the aim of the Dynamic Preservation policy is achieved: coastal recession has been stopped. Verwijder uit selectie Voeg toe aan selectie

Titel
A new sediment budget for the Netherlands: the effect of 15 years of nourishing (1991-2005)
Auteur
A.J.F. van der Spek
Q. Lodder
Opdrachtgever
Rijkswaterstaat WVL
Projectnummer
1220040
Plaats van uitgave
Delft
Uitgever
Deltares
Jaar van uitgave
2015 (april)
Pagina's
17 p.
Illustraties
fig.
Materiaal
rapport Deltares
Digitaal document
Annotatie
The research presented in this paper is part of the Dutch Coastal Management and Maintenance research program that is executed in collaboration between Deltares and Rijkswaterstaat
Onderwerp
sand transport, coastal nourishment, sediment concentrations, coastal erosion
Beschrijving
In 1990, the Dutch government decided to halt structural coastal erosion with sand nourishments. This report presents the sediment balance over the period 1990-2005, the first fifteen years of nourishing, in order to establish the results. The overall net sediment budget of the Dutch coast is still negative due to erosion of the lower shoreface and the ebb-tidal deltas (-159.8 million cubic meter). However, the budget shows that the accretionary status of the upper shoreface, beach and frontal dunes has changed to positive. The natural volume trend over the period 1990-2005 is -41.5 mcm. With a nourished volume of 118.6 mcm this zone has a net gain of 77.3 mcm. Especially the Holland coast has a very positive sediment budget: a gain of 23.3 mcm. The conclusion of this study is that the aim of the Dynamic Preservation policy is achieved: coastal recession has been stopped.