Approach to the use of uncertainty for management purposes - study Case: Quantification of the uncertainty in the turbidity for the ecosystem of the Wadden Sea

Around the world, areas with unique ecosystems are prone to harmful factors deteriorating their environment. Management of these areas need knowledge on the ecological status of these areas, to make decisions for future problems. They need easily accessible information on indicators describing the conditions of these areas. Obtaining this...

Foreshores in the Wadden Sea

Dutch flood protections are assessed every five to six years in a nationwide safety assessment round. During the last assessment round large dike stretches in the Dutch Wadden Sea could not meet the safety requirements, and were assessed with failure. Dike strengthening is therefore needed in these areas. However, in front of these dike salt...

Morphodynamics of Ameland Inlet: Medium-term Delft3D Modelling

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...

Short Term Morphological Impact of the Eierlandsedam

After decades of coastal erosion in the north-west area of the Island of Texel, the shore-normal `Eierlandse Dam` had been built in 1995. The dam, situated in the outer delta of the Eierlandse Gat tidal inlet, resulted in a remarkable short-term morphological development of the adjacent coast. Four years following completion of the dam, large...

Simulating and classifying large-scale spatial sand-mud segregation using a process-based model for a tidal inlet system

Tidal inlet systems, as found in the Dutch Wadden Sea, often feature both sand and mud. Due to differences in sediment properties, sand and mud particles respond different to identical forcing conditions, like short waves and tidal currents. Because of this, sand and mud can get transported to different locations. This process is referred to by...

Sediment exchange between flats and channels in tidal inlets

The subject of this thesis is the sediment exchange between channels and flats in tidal inlets. This topic is part of a research scheme which must yield more insight into the dynamic equilibrium of tidal inlets. An important aspect of the sediment exchange is the drying and flooding of the flats during the tide. The oscillating water level gives...

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...

Morphological modelling of tidal inlets in the Wadden Sea

The purpose of this study is to develop a suitable model to predict morphological changes in tidal inlets. Several morphological models already exist, but they all have their limitations. In this study is chosen for the morphological program ESTMORF. Until this moment the model ESTMORF is only verified for the channel cross-sectional areas and...