Differences in simulated sedimentation and erosion patterns. A) differences between (Wave-excluded scenario (EX1) – base case), showing that currents induced by winds and waves are very critical factors contributing to erosion on deltaic islands and erosion in channels; B) (Fluvial-excluded scenario (EX2) – base case), showing that fluvial input slightly decreases sediment deposition in channels and enhances the erosion on islands; C) (Vegetation-included scenario (EX4) – base case), showing aboveground vegetation dramatically decreases both the erosion on vegetated areas and the deposition in channels. DOI: https://doi.org/10.1525/elementa.125.f10