Upwelling

Definition

Upwelling is the process in which cold, nutrient-rich water from the ocean depths rises to the surface. This brings nutrients to the surface, supporting the growth of phytoplankton and attracting marine life.

Related terms

Phytoplankton:

Tiny plant-like organisms that float near the ocean's surface and form the base of many marine food chains.

Thermocline:

A layer in an ocean or lake where there is a rapid change in temperature with depth.

El Niño:

A climate pattern characterized by warm waters in the Pacific Ocean, causing changes in weather patterns worldwide.