This thesis presents the development a generic morphological model for both structured and unstructured grid. An online coupling model frame is set up by modularizing a proven 3d hydrodynamic module, a bed state description module, a sediment transport module, a bed update module, and a vegetation population dynamic module. Since the model is embedded in the validated Delft software system, the existing hydrodynamics, water quality and bio-chemistry processes are applicable with minimum efforts in addition. Both relevant geomorphological and ecological processes and their scales are...