what factors control most ocean surface currents

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What Factors Control Most Ocean Surface Currents?

Surface currents are controlled by three factors: global winds, the Coriolis effect, and continental deflections. surface create surface currents in the ocean. Different winds cause currents to flow in different directions. objects from a straight path due to the Earth’s rotation.Surface currents are controlled by three factors: global winds, the Coriolis effect

Coriolis effect
The Coriolis force acts in a direction perpendicular to the rotation axis and to the velocity of the body in the rotating frame and is proportional to the object’s speed in the rotating frame (more precisely, to the component of its velocity that is perpendicular to the axis of rotation).

What 3 factors control the ocean’s surface currents?

Currents on the surface are determined by three major factors: the major overall global wind patterns, the rotation of the Earth, and the shape of ocean basins.

What are the 4 factors that drive ocean currents?

There are four factors affecting the origin and flow of Ocean Currents i.e. Rotation and gravitational force of the Earth; Oceanic factors (temperature, salinity, density, pressure gradient and melting of ice); atmospheric factors (atmospheric pressure, winds, rainfall, evaporation and insolation); factors that …

What are the two major controlling factors for deep ocean currents?

The movement of water around the globe can dramatically affect the climate, local ecosystems, and the transfer of heat. A variety of factors drive currents but the two strongest forces are wind and water density. Wind is the primary controlling force of surface currents while deep ocean currents are density driven.

What are the 5 main causes of ocean currents?

Causes of Ocean Currents

  • Solar heating. it causes water to expand. …
  • Wind. The Wind is responsible for ocean currents as it blows the water on the surface, causing the currents. …
  • Gravity. Gravity tends to pull items towards the surface of the earth. …
  • The salinity of the water. …
  • Temperature. …
  • Coriolis effect. …
  • Underwater earthquakes.

What is one factor that causes ocean currents?

Ocean currents are driven by wind, water density differences, and tides.

What two factors affect the currents of the ocean?

Winds, water density, and tides all drive ocean currents. Coastal and sea floor features influence their location, direction, and speed. Earth’s rotation results in the Coriolis effect which also influences ocean currents.

Which factor drives surface ocean currents quizlet?

Wind direction, the spin of Earth, and differences in temperature contribute to currents. Currents occur at the surface of and deep within the ocean. The Coriolis effect contributes to the direction of current flow. Wind direction, the spin of Earth, and differences in temperature contribute to currents.

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 causes ocean currents quizlet?

A directional movement of ocean water; surface currents result from steady winds over the ocean surface; deep ocean currents result from density variations due to temperature and salinity differences.

What are two major drivers of surface ocean current and deep ocean current?

Two major kinds of currents define the planet’s oceans: surface currents driven by wind and deep-water currents driven by variations in seawater density.

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

Ocean currents are the continuous, predictable, directional movement of seawater driven by gravity, wind (Coriolis Effect), and water density. Ocean water moves in two directions: horizontally and vertically.

Which of these describes the factor that has the greatest effect on surface currents and explains why?

the Moon’s gravity, because the tides control the surface currents. the seafloor features, because the surrounding seafloor determines the surface currents. the differences in salinity, because water moving from larger to smaller levels of salinity causes surface currents.

What factors determine the movement of surface currents?

Surface currents are controlled by three factors: global winds, the Coriolis effect, and continental deflections. surface create surface currents in the ocean. Different winds cause currents to flow in different directions. objects from a straight path due to the Earth’s rotation.

How does wind control ocean currents?

Major surface ocean currents in the open ocean, however, are set in motion by the wind, which drags on the surface of the water as it blows. … The winds pull surface water with them, creating currents. As these currents flow westward, the Coriolis effect—a force that results from the rotation of the Earth—deflects them.

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.

Which of the following factors does not cause ocean currents?

Detailed Solution. The correct answer is Coriolis Force.

How do the causes of surface and deepwater currents differ?

How do the causes of surface and deepwater currents differ? Surface currents are caused by wind; deepwater currents are caused by differences in water density. Wind and ocean currents do not move in straight lines; instead, they curve as they move across the planet.

What are the factors causing ocean currents Class 7?

Ocean currents are streams of water flowing constantly on the ocean’s surface in definite directions. They are caused by differences in the temperature and salinity of water, by wind, solar heating and gravity. The winds majorly responsible for creating ocean currents are the Westerlies and the Trade winds.

What other factors affect the appearance of the sea surface?

Other than gravity, several other factors contribute to sea surface height:

  • Waves.
  • Tides (influence of the Moon’s gravity on the ocean)
  • Ocean currents.
  • Ocean eddies (swirling ocean features)
  • Temperature of the upper ocean water.

How does convection cause ocean currents?

Thermal energy also moves within the ocean and within the atmosphere through the process of convection. During convection, cooler water or air sinks, and warmer water or air rises. This movement causes currents. Ocean currents are like rivers of water moving through the sea.

Which factor drives surface ocean currents Brainly?

Answer: Explanation: Large-scale surface ocean currents are driven by global wind systems that are fueled by energy from the sun. These currents transfer heat from the tropics to the polar regions, influencing local and global climate.

Why are surface currents at the surface of the ocean quizlet?

Surface currents occur at the surface of the ocean and are caused by global winds; the Gulf Stream is an example. Deep currents occur deep in the ocean and are influenced by water density, salinity, and temperature.

What is one factor in the creation of surface ocean currents quizlet?

10/ Wind is the primary source of surface ocean currents. The Coriolis effect influences currents. This is due to earth’s rotation, currents are deflected to the right of the northern hemisphere and to the left of the southern. As a consequence, gyres flow in opposite directions in the two different hemispheres.

How do winds cause surface currents?

Wind is the most important cause of surface currents. When strong, sustained winds blow across the sea, friction drags a thin layer of water into motion. The movement of the very topmost layer of the sea pulls on the water just beneath, which then in turn starts the layer under it moving.

What is the reason behind the dynamics of the ocean current?

Ocean water is influenced by the rotation of the earth. Due to this, the ocean currents move clockwise in the northern hemisphere and in the opposite direction in the southern hemisphere. Planetary winds such as the easterlies also influence the direction of the movement of ocean water.

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 causes surface currents quizlet?

What causes surface currents to move? It is caused by wind action, Earth’s spin, and the shape of the continents. Also, the speed, direction, and volume of water can be affected by the uneven heating of the atmosphere.

What factors affect the path of an ocean current quizlet?

Ocean currents, which are the ocean water’s movement in a particular direction, are mainly influenced by factors such as wind patterns, temperature, water density, salinity, shape of the ocean basin, and gravity.

What causes ocean currents quizlet earth science?

The oceans contain streamlike movements of water. Ocean currents that occur at or near the surface of the ocean, caused by wind.

How do ocean currents work? – Jennifer Verduin

Factors Affecting the Movement of Ocean Water – Geography UPSC IAS

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