Nourishing intertidal foreshore: Improving safety and nature

After extensive flooding in 1953, Deltaworks were constructed to protect the Southwest delta in the Netherlands. In the Eastern Scheldt the connection to the North Sea was regulated by an open storm surge barrier and two compartment dams. These decreased the tidal volume and consequently tidal flats are eroding and disappear under water. The...

Using Texel Inlet as a sediment transport belt

A consortium of DHV, Imares and Alle Hosper proposed the reclamation of tidal marshes in front of the Afsluitdijk. During severe storms the tidal marshes reduce the wave attack and therefore improve the safety assessment of the Afsluitdijk. The construction of the tidal marshes implies the transportation of approximately 50 Mm3 sediment. This...

Morphological impact of a deep water reef

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...

Impact of relative sea level rise on the Amelander inlet morphology

The aim of the Strength and Loading of Coastal Structures (SBW) project is to improve the models to derive the Hydraulic Boundary Conditions which are determined along the Dutch coast once per five years. The Amelander inlet is chosen as area of interest in the Wadden Sea. As the Amelander Inlet is morphologically a very active area, this study...

Long-term morphological evolution of the Western Dutch Wadden Sea

The present study considers long-term morphologic development of the inlets forming the Western Dutch Wadden Sea. This concerns analysis of field measurements carried out since closure of the Zuider Sea (1932) as well as an assessment of possible imporvements of long-term morphological prodictions made for this area using ASMITA. From field...

Zandbalans Loswal noord. De netto bijdrage van Loswal Noord aan de zandvoorraad van het Nederlandse kustfundament.

Temporal development of the tidal range in the southern North Sea

The North Sea is a shallow sea on the Eurasian continental shelf. This study focuses on the temporal development of the tidal range in the southern part of the North Sea. Records of annual tidal range data from gauging stations along the Dutch coast show in general an increasing trend perturbed by random fluctuations. Changes in tidal ranges are...

Stromingsberekeningen in het Friesche Zeegat

The Friesche Zeegat area is situated in the northeast of the Netherlands and is a part of the Dutch Waddensea. The Friesche Zeegat area consists of the barrier Islands Ameland and Schiermonnikoog and a part of the Waddensea. Drainage occurs through tidal channels and the major tidal inlets. Seawards of the inlet, an ebb-tidal delta occurs. The...

Tsunami-golven in het Noordzeegebied

In het Noordzeegebied kunnen ook tsunami-golven voorkomen die opgewekt zijn door een aardbeving buiten dit gebied. Met name het zeegebied ten noorden en noordwesten van het Noordzeegebied is in dit verband van belang. In dit noordelijk zeegebied is de kans op een tsunami-opwekkende aardbeving aanmerkelijk groter dan in het Noordzeegebied. M.b.t....