How Do Ocean Currents Affect Climate Quizlet?

How fast do ocean currents move?

The velocity of the current is fastest near the surface, with the maximum speed typically about 5.6 miles per hour (nine kilometers per hour).

The average speed of the Gulf Stream, however, is four miles per hour (6.4 kilometers per hour)..

How can we prevent ocean warming?

You can help slow global warming and ocean acidification by reducing your “carbon footprint”—the amount of carbon dioxide released as you go about your daily activities. Power down: Making little changes in the way we live can go a long way to reducing energy use—and carbon emissions.

How do ocean currents affect climate?

Ocean currents act as conveyer belts of warm and cold water, sending heat toward the polar regions and helping tropical areas cool off, thus influencing both weather and climate. … Land areas also absorb some sunlight, and the atmosphere helps to retain heat that would otherwise quickly radiate into space after sunset.

How do mountains affect climate?

Mountains can affect the climate of nearby lands. In some areas, mountains block rain, so that one side of a mountain range may be rainy and the other side may be a desert. Much of airborne moisture falls as rain on the windward side of mountains.

How do ocean currents work?

Ocean currents are driven by a range of sources: the wind, tides, changes in water density, and the rotation of the Earth. The topography of the ocean floor and the shoreline modifies those motions, causing currents to speed up, slow down, or change direction.

What is the strongest ocean current?

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.

How deep in the ocean has a human been?

At 5:52 p.m. ET Sunday (7:52 a.m. Monday, local time), James Cameron arrived at the Mariana Trench’s Challenger Deep, members of the National Geographic expedition have confirmed. His depth on arrival: 35,756 feet (10,898 meters)—a figure unattainable anywhere else in the ocean.

What is the main cause of ocean currents?

Ocean currents can be caused by wind, density differences in water masses caused by temperature and salinity variations, gravity, and events such as earthquakes or storms. … These currents move water masses through the deep ocean—taking nutrients, oxygen, and heat with them.

How do humans affect ocean currents?

People have used ocean currents to explore the Earth. Ocean currents affect the shipping industry, commercial and recreational fishing, and recreational navigation for boats. Having updated information on currents is directly related to how safely people can dock or navigate along coasts.

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.

Do ocean currents change?

The long-term positions of currents have changed over millennia due to plate tectonics, climate, and periodic astronomical events such as asteroid impacts. Winds drive ocean currents in the upper 100 meters of the ocean’s surface. However, ocean currents also flow thousands of meters below the surface.

What are the 3 major ocean currents?

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

What happens if ocean currents stop?

If it continues to slow, that could have profound consequences for Earth’s inhabitants. Studies suggest it would mean much colder winters and hotter summers in Europe, changing rainfall patterns in the tropics, and warmer water building up along the U.S. coast that can fuel sea level rise and destructive storms.

What are the 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…