noun up·well·ing \ˌəp-ˈwe-liŋ\

Definition of upwelling

  1. :  the process or an instance of rising or appearing to rise to the surface and flowing outward; especially :  the process of upward movement to the ocean surface of deeper cold usually nutrient-rich waters especially along some shores due to the offshore movement of surface waters (as from the action of winds and the Coriolis force)


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