10.18453/rosdok_id00001493 Schulz, Elisabeth Elisabeth Schulz http://d-nb.info/gnd/1067084460 Universität Rostock 2015 530 Physics 2015 en http://purl.uni-rostock.de/rosdok/id00001493 urn:nbn:de:gbv:28-diss2015-0043-0 The residual circulation in tidal estuaries is composed of different contributions. These circulation contributions and their dependencies on the influencing parameters can be investigated by means of numerical hydrodynamic models. The simulation results reveal that the tidal straining circulation is the dominant contribution in a large part of the parameter space and that it depends on the depth-to-width ratio of an estuary in such a way that the circulation is maximum in medium wide estuaries.