Water may be pushed upward by the motion of ocean currents,
and when this happens it will take any nutrients that are
dissolved in it along with it! Wind can cause this to occur in a
circulation pattern known as "wind-driven upwelling". Regions that
frequently exhibit wind-driven upwelling tend to be highly productive
because of the nutrients that are brought to the surface to support
One very common and important type of wind-driven upwelling occurs along coasts.
Coastal upwelling will occur whenever the wind blows in the proper direction
for a period of time long enough to push the water into the upwelling circulation
Let's examine the necessary conditions that cause this circulation pattern to develop.