The process of accumulation and sinking of warm surface waters along a coastline. A change of air flow of the atmosphere can result in the sinking or downwelling of warm surface water. The resulting reduced nutrient supply near the surface affects the ocean productivity and meteorological conditions of the coastal regions in the downwelling area.
a process by which surface waters increase in density and sink. Strong downwelling occurs mainly off Greenland and Antarctica.
a downward movement of a liquid or plastic substance.
the vertical movement of a fluid downward due to density differences or where two fluid masses converge, displacing fliud downward. In the ocean, it often refers to where Ekman transport causes surface waters to converge or impinge on the coast, displacing surface waters to converge or impinge on the coast, displacing surface water downward thickening the surface layer
A downward movement (sinking) of surface water caused by ONSHORE EKMAN TRANSPORT, converging CURRENTS, or when a water mass becomes more dense than the surrounding water.
A downward motion of surface or subsurface water that removes excess mass brought into an area by convergent horizontal flow near the surface. See also upwelling.
Downwelling is the process of accumulation and sinking of higher density material beneath lower density material, such as cold or saline water beneath warmer or fresher water or cold air beneath warm air. It is the sinking limb of a convection cell. Upwelling is the opposite process and together these two forces are responsible in the oceans for the thermohaline circulation.