morphodynamic model

Storm-driven estuary bed changes hinge on sediment state and form

Storms reshape estuarine beds faster than field records can capture. Our model, inspired by the Changjiang Estuary, shows that response depends on the sediment state and form established over centuries. A sand-richer bed concentrates erosion at the delta front, while mud-richer states generate far higher suspended concentrations, up to 54-fold at seaward stations. Monitoring those exposed front sectors first is where event-scale data will matter most. For another perspective on coastal dynamics, see our coverage of the Vistula Lagoon Ice Shove study.