Projecting Hydro-Morphodynamic Impacts of Planned Layout Changes for a Coastal Harbor

The macrotidally influenced harbor of Dagebüll on the North Sea coast Germany features a piled south jetty, for which provided constructive designs are investigated regarding their potential hydro-morphological impacts area and adjacent navigational channel. experiences steady accumulation sediment. This results in reduction depth necessitates regular maintenance dredging constituting cost aspect. A comprehensive field study was conducted, deploying ridged inflatable boat (RIB) equipped with differential Global Positioning System, winch conductivity, temperature, casting as well sediment water sampling an acoustic Doppler current profiler profiling. Measurements reveal tidally governed alternating flow pattern inducing vortex inside basin. Hydrodynamic sea floor grain sorting is detected through sampling. numerical model cascade developed calibrated against available tide gauge inventory data multibeam survey acquired measurements. used to simulate layout variants compare resulting identify preferable jetty designs.