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River/Estuary Plume (Hydroform Type)

Component: Hydroform

Unique Identifier: 695

Hydroform Class Water Mass
Hydroform Mesoscale Lens
Hydroform Type River/Estuary Plume


Description
Definition Formation of water resulting from the discharge of low-salinity water into marine waters of the ocean, forming a distinct layer of water on top of the seawater due to its lower density. The plume can extend for many kilometers and persist for months after the freshwater flow has stopped before being entrained into the seawater. These plumes are typically higher in nutrients, turbidity and productivity than the surrounding seawater and can gradually deliver those water quality characteristics to the adjacent ocean water.