A dynamic model for morphological development in a tidal inlet, ''Het
Friesche Zeegat'', in the Wadden Sea along the northern coast of the N
etherlands, is set up to obtain a better understanding of the behaviou
r of the morphological system around tidal inlets. The model is based
on DELMOR, a program package for morphological changes, developed at D
elft Hydraulics. Computations of the flow, the sediment transport, the
initial bed level change rate as well as long-term morphological deve
lopment have been carried out. The model has proven to be a useful res
earch tool, even though it does not yet reproduce reality in detail.