Ocean Currents. Which ocean current if found off the coast of North Carolina? Is it a warm water current or a cold water current? How does it affect our climate and our economy?. Current off our Coast.
Surface currents are controlled by three factors: global winds, the Coriolis effect, and continental deflections.
Global Winds Winds that blow across the Earth’s surface create surface currents in the ocean. Different winds cause currents to flow in different directions.Global WInds
The Coriolis Effect is the apparent curving of moving objects from a straight path due to the Earth’s rotation.Coriolis Effect
Streamlike movements of ocean water located far below the surface are called deep currents. Deep currents are not controlled by wind.
Upwelling is the movement of deep, cold, and nutrient-rich water to the surface of the ocean.Upwelling
The nutrients that are brought to the surface support the growth of plankton. Plankton support larger organisms, such as fish and seabirds.Upwelling
El Niño is a change in the water temperature in the Pacific Ocean that produces a warm current.
To study El Niño, scientist use a network of buoys located along the equator. The buoys collect data about surface temperature, air temperature, currents, and wind.
Most waves form as wind blows across the water’s surface and transfers energy to the water.
Shore Currents When waves crash on the beach head-on, the water they moved through flows back to the ocean underneath new incoming waves.Currents
Longshore Currents are water currents that travel near and parallel to the shore line.
Tsunamis are waves that form when a large volume of ocean water is suddenly moved up or down. This movement can be caused by underwater earthquakes, as shown below.Tsunami