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Home  Education  Currents  Upwelling
  << Back This image highlights major upwelling areas along the world's coasts in  red. Upwelling occurs when winds blowing across the ocean surface push  water away from an area and subsurface water rises up from beneath the  surface to replace the diverging surface water. These subsurface waters  are typically colder, rich in nutrients, and biologically productive.  Therefore, good fishing grounds typically are found where upwelling is  common. For example, the rich fishing grounds along the west coasts of  Africa and South America are supported by year-round coastal upwelling.


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