AbstractCarefully assessing the environmental impacts of human interventions in estuaries on sediment transport and morphodynamics has become increasingly important due to the high ecological importance of these systems. Man-made changes are typically quantified with numerical sediment transport models. However, setting up these models and more importantly interpreting their results requires a profound knowledge of the natural system and present-day transport processes. This contribution focusses on the mechanisms of sediment transport in a mesotidal estuary and discusses possible impacts of a channel deepening on those mechanisms and their expected impact on long-term changes on sediment transport. The processes are described on the basis of field data and simulations.
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