Abstract
Based on the results of field observation in a tidal river, modeling of sediment transport processes is performed and long term transport is simulated with newly developed procedure, in which a Lagrangian reference frame is used to reduce numerical dispersion. Suspended sediments transport in the tidal river is calculated with erosion and deposition of sediment, consolidation of fluid mud to cohesive bed mud, and transport by turbidity current of fluid mud. Sediment transport processes concerned with the formation and maintenance of turbidity maxima are sufficiently simulated for a fortnightly cycle with a Lagrangian sediment transport model.
