Flood–Ebb and Discharge Variations in Observed Salinity and Suspended Sediment in a Mesotidal Estuary

To explore the spatial and temporal variations in salinity suspended-sediment concentration Danshuei River estuary of northern Taiwan, two intensive field surveys were conducted July 2016 2019 to assign high- low-flow conditions, respectively. According analysis tidal characteristics, duration during ebb tide was longer than that flood tide, while maximum discharge higher discharge, causing occurrence asymmetry tides. The barotropic forcing dominated high flow, resulting lower a shorter distance saltwater intrusion. Based on analyzed results using stratification indices, most time spent state partial mixing at Guandu Bridge good Taipei states both low flow. More occurred flow slack compared freshwater discharges from upriver reaches controlled (SSC) estuaries. SSC appeared downstream Observations also revealed there an estuarine turbidity bottom layer Bridge.