Saltwater intrusion from Changjiang Estuary threatens freshwater supply for nearby cities.
The Changjiang Estuary is studied to understand its tidal patterns, saltwater intrusion, and river plume dynamics. Tides play a big role, with a dominant semidiurnal cycle and varying tidal range. Low river discharge leads to saltwater intrusion, affecting freshwater availability. Tidal and wind forces influence the extension of the river plume into the ocean. Northerly winds can enhance saltwater intrusion. The freshwater output from the Changjiang River forms a large plume that affects the East China Sea and Yellow Sea.
