PREDICTING PORT SEDIMENTATION AND NAVIGATIONAL DEPTHS ON MEDIUM/LONG-TERM TIMESCALES: COMBINING 2D AND SHORELINE MORPHOLOGICAL MODELLING

[摘要] Navigational depths in entrances of ports located on open sandy coasts are governed by the supply of sediment from adjacent coastlines and the complex morphodynamics in and around the port. To predict the depths, a model encapsulating the transport along adjacent shorelines and the detailed morphology around the port structures is required. To resolve this in a fast and robust manner, a novel model which couples the features of DHI’s shoreline model (MIKE 21 FM Shoreline Morphology) and the morphological area model (MIKE 21/3 FM MD) is developed. Morphological simulations with the new tool show very promising results, when predicting the development over relatively long periods. Such new advances in medium/long term modelling of the temporal changes of the bathymetry in and around ports is key to the prediction of the navigational depth, including seasonal and annual variations.

[学科分类] 建筑学