What Process Brings The Deep Cold Ocean Currents Up


What Process Brings The Deep Cold Ocean Currents Up?

thermohaline circulation

What is the process of deep ocean currents?

In contrast to wind-driven surface currents deep-ocean currents are caused by differences in water density. The process that creates deep currents is called thermohaline circulation—“thermo” referring to temperature and “haline” to saltiness. … This water also cools and sinks keeping a deep current in motion.

What makes the deep ocean water move in 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.

What do you call the process wherein cold water from deep ocean rises?

Upwelling. Since unlimited amounts of water cannot sink to the bottom of the ocean water must rise from the deep ocean to the surface somewhere. This process is called upwelling (Figure below). … Upwelling is extremely important where it occurs.

What causes deep ocean currents quizlet?

What causes deep water currents to move? It is caused by temperature and salinity of the water. It is from the surface to 200m deep. It is caused by wind action Earth’s spin and the shape of the continents.

Where do deep currents flow?

Thus deep currents generally occur in the higher latitude regions of the Earth such as North Atlantic Deep Water and Antarctic Bottom Water and from these frigid poleward regions the deep currents flow at a relatively slow pace towards the equator.

How does the cold and denser water masses sink to the depths of ocean?

How does the cold and denser water masses sink to the depths of ocean? Explanation: The cold and denser water masses formed by surface water sink to the depths of the ocean by thermohaline circulation. It is circulation of ocean water due to density gradient.

What are the main factors responsible for ocean currents?

Oceanic currents are driven by three main factors:
  • The rise and fall of the tides. Tides create a current in the oceans which are strongest near the shore and in bays and estuaries along the coast. …
  • Wind. Winds drive currents that are at or near the ocean’s surface. …
  • Thermohaline circulation.

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What forces are responsible for the movement of ocean water in currents What forces and factors influence the direction and nature of ocean currents?

Primary forces are thermal expansion and contraction of water the stress of wind blowing over the water and density differences between water layers. Secondary forces and factors are the Coriolis Effect gravity friction and the shape of the ocean basins themselves.

What is water cycle process?

The water cycle consists of three major processes: evaporation condensation and precipitation. Evaporation is the process of a liquid’s surface changing to a gas. In the water cycle liquid water (in the ocean lakes or rivers) evaporates and becomes water vapor.

What is another name for deep water circulation?

thermohaline circulation also called Global Ocean Conveyor or Great Ocean Conveyor Belt the component of general oceanic circulation controlled by horizontal differences in temperature and salinity.

What is water cycle explanation?

The water cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes. Liquid water evaporates into water vapor condenses to form clouds and precipitates back to earth in the form of rain and snow.

How do deep ocean currents form quizlet?

Deep currents occur deep in the ocean and are influenced by water density salinity and temperature. The Antarctic Bottom Water is an example. … Winds and currents flow faster at the equator than at the poles. One reason equatorial currents are faster is that they are warmer.

Which two factors are responsible for the formation of deep currents?

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.

Which of the following explains why deep ocean currents form?

Deep currents are formed when the density of the water changes due to temperature and salinity. These currents mix the ocean water by moving the cold water toward the equator and the warm water toward the poles. … They mix the ocean water by moving the cold water toward the equator and the warm water toward the poles.

What do deep currents do?

These currents bring heat from the tropics to the polar regions the Gulf Stream for instance brings warm water along the eastern coast of the US up to Northern Europe. Deep currents also known as thermohaline circulation result from differences in water density.

How are deep water currents formed at poles?

At the earth’s poles when water freezes the salt doesn’t necessarily freeze with it so a large volume of dense cold salt water is left behind. When this dense water sinks to the ocean floor more water moves in to replace it creating a current.

How do water molecules move as part of deep ocean waves?

when a wave passes through the ocean individual water molecules move up and forward then down and back. … Deep water waves- Waves moving through water deeper than 1/2 their wavelength circular orbits. Transitional water waves- Waves in water shallower than 1/2 their wavelength but deeper than 1/20th.

How is deep ocean water formed?

Deep waters are “formed” where the air temperatures are cold and where the salinity of the surface waters are relatively high. The combinations of salinity and cold temperatures make the water denser and cause it to sink to the bottom. Places where the water is cold enough and salty enough to form bottom water.

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Why is the deep ocean cold?

Cold salty water is dense and sinks to the bottom of the ocean while warm water is less dense and remains on the surface. … Water gets colder with depth because cold salty ocean water sinks to the bottom of the ocean basins below the less dense warmer water near the surface.

How cold is deep ocean water?

Therefore the deep ocean (below about 200 meters depth) is cold with an average temperature of only 4°C (39°F). Cold water is also more dense and as a result heavier than warm water.

How do cold ocean currents form deserts?

Cold ocean currents contribute to the formation of coastal deserts. Air blowing toward shore chilled by contact with cold water produces a layer of fog. This heavy fog drifts onto land. Although humidity is high the atmospheric changes that normally cause rainfall are not present.

What factors 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.

Why do cold currents create deserts?

They are caused by cold ocean currents which run along the coast. They cool the air and make it harder for the air to hold moisture. Most moisture falls as rain before it reaches the land eg the Namib Desert in Africa. … The air here is much drier than on the coast.

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

What causes Surface ocean currents and how do they flow/what direction do they flow? Surface currents develop from friction between the ocean and the wind that blows across its surface.

What forces are responsible for producing ocean waves?

Waves are most commonly caused by wind. Wind-driven waves or surface waves are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake the continual disturbance creates a wave crest.

What causes deep water currents apex?

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.

What are the 4 process of the water cycle?

There are four main stages in the water cycle. They are evaporation condensation precipitation and collection. Let’s look at each of these stages.

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What are hydrological processes?

The water cycle or hydrologic cycle is a continuous process by which water is purified by evaporation and transported from the earth’s surface (including the oceans) to the atmosphere and back to the land and oceans.

What is precipitation process?

Precipitation forms in the clouds when water vapor condenses into bigger and bigger droplets of water. When the drops are heavy enough they fall to the Earth. … These ice crystals then fall to the Earth as snow hail or rain depending on the temperature within the cloud and at the Earth’s surface.

How do ocean currents work? – Jennifer Verduin

How changes in temperature create ocean currents ( Ocean Stratification Demonstration)

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