Numerical modelling of hydro-morphological processes dominated by fine suspended sediment in a stormwater pond

摘要

Highlights?A 2D model is used to track morphological processes dominated by suspended sediment.?We explored fine sediment dynamics in a stormwater pond based on modelling outputs.?A stormwater pond attenuates flow peak and traps fine sediment particles.?The magnitude of flow peaks affects sediment deposition and re-suspension in a pond.?A stormwater pond has a critical value for inflow causing bed erosion or deposition.AbstractFine sediment plays crucial and multiple roles in the hydrological, ecological and geomorphological functioning of river systems. This study employs a two-dimensional (2D) numerical model to track the hydro-morphological processes dominated by fine suspended sediment, including the prediction of sediment concentration in flow bodies, and erosion and deposition caused by sediment transport. T