ABSTRACT Process based morphological models are used as a policy tool to predict the morphological changes due to (human)
impacts. Due to computational time of these models sensitivity of the model results are often not considered.
This paper presents a case study in the Haringvliet Estuary (the Netherlands) and shows that bandwidth in morphological
predictions cannot be neglected. The questions to be answered in es-tuarine morphology should not only concentrate on
the bathymetry after a period of (say) 10 years, but also on the accuracy ranges of the prediction.
ABSTRACT A high resolution morphological model of the northern part of the Holland Coast and Texel
inlet is presented in this paper. The model includes the morphological effects of the combined action of tides
and waves and focuses on the long term morphology (decades) that is dominated by the longshore coastal
processes. This model has been set up and calibrated on observed morphological developments, and then applied
to future development schemes. It was concluded that the model produces reliable results, making it a
useful tool for decision making processes.
ABSTRACT A process-based morphological model of the Western Scheldt Estuary based on the finite elements
method is presented in this paper. This model is able to successfully hindcast the morphological developments
of the Western Scheldt over several decades. The measured sedimentation/erosion pattern versus the
pattern calculated by FINEL2d over the period 1965 – 2002 was compared. Good agreement was found in
overall patterns, although many differences were still to be seen in detail. It was concluded that the model can
be used to evaluate different scenarios, making it a useful tool for decision making processes e.g. future
deepenings of the fairway.