The process or an instance of rising or appearing to rise to the surface and flowing outward; esp. the process of upward movement to the surface of marine often nutrient-rich lower waters, esp. along some shores due to the offshore drift of surface water (as from the action of winds and the Coriolis force).
(海水)上涌;涌升流(富有营养物的海流从深海上涌至海面)。