How Do Deep Currents Move?

What are 2 types of ocean currents?

There are two type of Ocean Currents:Surface Currents–Surface Circulation.Deep Water Currents–Thermohaline Circulation.Primary Forces–start the water moving.The primary forces are:Secondary Forces–influence where the currents flow.Solar heating cause water to expand.More items….

Where are the strongest ocean currents?

Antarctic Circumpolar CurrentThe Antarctic Circumpolar Current is the strongest current system in the world oceans and the only ocean current linking all major oceans: the Atlantic, Indian, and Pacific Oceans.

What are warm currents?

Page 1. Warm Currents. Warm ocean currents flow away from the equatorial region on the western side of ocean basins. The Gulf Stream in the North Atlantic and the Kuroshio Current in the North Pacific are examples of warm currents. Of all the warm currents, the Gulf Stream has been studied most extensively.

What are the 3 types of ocean currents?

Two types of ocean circulationEquatorial currents. At the Equator the currents are for the most part directed toward the west, the North Equatorial Current in the Northern Hemisphere and the South Equatorial Current in the Southern Hemisphere. … The subtropical gyres. The subtropical gyres are anticyclonic circulation features. … The subpolar gyres.

What are the 5 major ocean currents?

There are five major gyres: the North and South Pacific Subtropical Gyres, the North and South Atlantic Subtropical Gyres, and the Indian Ocean Subtropical Gyre.

What are two main factors that affect deep ocean currents?

Deep ocean currents are density-driven and differ from surface currents in scale, speed, and energy. Water density is affected by the temperature, salinity (saltiness), and depth of the water. The colder and saltier the ocean water, the denser it is.

What is the difference between deep currents and surface currents?

Deep water currents make up 90 percent of the ocean currents. Unlike surface currents, which are driven by interactions with sun and wind, deep currents are caused by the interaction between temperature and water density.

How do deep ocean currents move?

Currents may also be caused by density differences in water masses due to temperature (thermo) and salinity (haline) variations via a process known as thermohaline circulation. These currents move water masses through the deep ocean—taking nutrients, oxygen, and heat with them.

What are deep currents driven by?

These deep-ocean currents are driven by differences in the water’s density, which is controlled by temperature (thermo) and salinity (haline). This process is known as thermohaline circulation. In the Earth’s polar regions ocean water gets very cold, forming sea ice.

What forces are responsible for the movement of ocean water in currents?

Three major factors that set ocean currents: wind, changes in sea level, and cariations in water density. Wind causes both surface currents and waves.

How quickly do deep ocean currents move?

The global conveyor belt moves much more slowly than surface currents — a few centimeters per second, compared to tens or hundreds of centimeters per second. Scientists estimate that it takes one section of the belt 1,000 years to complete one full circuit of the globe.

What are deep currents?

Deep water currents are formed when surface waters are cooled, become more dense and sink below the surface. Major areas where this occurs are around Antarctica and in the North Atlantic. Water becomes more dense when it has a higher salt content or becomes colder.

What causes deep water currents to move?

Deep ocean currents (also known as Thermohaline Circulation) are caused by: … The sinking and transport of large masses of cool water gives rise to the thermohaline circulation, which is driven by density gradients due to variations in temperature and salinity.

Are there currents underwater?

Underwater currents can form in lakes, rivers and oceans, and there are many reasons why they happen. … Some ocean currents are very large, and the biggest one – called the “global conveyor belt” – moves water very slowly all the way around the world.