Assessing maintained bed levels in ports

The accessibility of a port, which is mainly determined by the available water depth, is of economic importance for a port to distinguish itself from other ports. For the vertical design of navigation channels, the goal is to make routes equally accessible and not have bottlenecks; to have an optimal maintenance program and not incur unnecessary...

Bed level changes in the Waal during floods

Bed level changes during a flood can have large influence on the safety against flooding and the navigational function of a river. In 1997 measurements were carried out in the Waal during a flood. These measurements present an average decrease of the bed level in the order of 10 cm over a 10 km reach which is much larger than expected from the...

Morphodynamic equilibria for a width varying tidal embayment

In this thesis a morphodynamic model of a tidal embayment, first studied in Schuttelaars & de Swart (1996), will be described and investigated. The difference with the rectangular embayment in Schuttelaars & de Swart (1996) is that the width is described with an exponential function. We focus here on the width averaged solutions. This gives us a...

Tidal influence on sediment transport and bed level in the river Merwede

The area of the Merwedes is a transition zone between a tide-dominated area and a river-dominated area. With increasing river discharge, the influence of river flow dominates in this part of the Rhine-Meuse Delta. The composition of the river bed of the Merwedes is also a transitional area, because of the presence of both sand and mud. It is...