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.
What affects surface ocean currents?
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.
What 4 factors affect ocean currents?
What are four factors that affect current flow? Surface Currents. At the surface, currents are mainly driven by four factors—wind, the Sun’s radiation, gravity, and Earth’s rotation. All of these factors are interconnected.
What are the 5 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 are the two main factors that affect deep ocean currents?
Deep currents are driven by temperature and water density/salinity.
What three things cause 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.
What are the 3 types of 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.
What are two factors that cause changes in the motion of surface currents like the Gulf Stream?
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 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. The rising of cold water from deeper layers to replace warmer surface water.
How does wind affect ocean currents?
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. The currents then bend to the right, heading north.
How do ocean surface currents affect climate?
Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, ocean currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth’s surface.
What are ocean currents explain any three effects of ocean current?
The following are the three effects of ocean currents:
It keeps the temperature high and makes the area more heated than the surrounding areas. The warm ocean currents led to rainfall. It shares minerals & pollution attached to it becomes profoundly adulterated & later negligible.
How does ocean currents affect climate quizlet?
Ocean currents affect world climate because ocean currents carry warm water, which helps warm climates of land masses.
How do ocean currents affect climate Class 9?
The ocean currents greatly influence the temperature of an area. In areas where warm and cold currents meet, the temperature falls, giving rise to foggy conditions. Whoever, mixing of warm and cold currents supports a rich marine life.
How do ocean currents affect the climate explain Class 11?
Answer: Effects of currents influenced by temperature. Warm currents makes the place warmer where as the cold currents makes the place colder. Example, Warm currents of Koroshio makes the southern Japan less cold in winter whereas the cold current of Koroshio makes the winter longer and severe in north Japan.
How do ocean currents affect the temperature of a place Class 7?
Ocean currents are caused by the uneven heating of the Earth surface. Warm ocean currents flow from the equatorial regions and cold ocean currents flow from the Polar regions. Warm ocean currents increases the temperature of the near by coastal areas while cold ocean currents bring down the temperature.
How do ocean currents affect climate class 7?
Ocean currents influence the climate and economic activities of coastal regions in the following ways: Warm currents raise the temperature along the coast, while cold currents drop the temperature along the coast.
Which factors affect the movement of ocean water?
characteristics like temperature, salinity, density and the external forces like of the sun, moon and the winds influence the movement of ocean water.
What are the main factors responsible for ocean currents class 7th?
Answer:
- wind.
- density difference in water.
- salinity variations.
- gravity.
- earthquakes.
- storms.
What are ocean currents Std 7?
Ans. Ocean currents are streams of water flowing constantly on the ocean surface in definite directions. The ocean currents may be warm or cold. The warm ocean currents originate near the equator and move towards the poles.
What factors affect the origin and direction of ocean currents Class 7?
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 disadvantages of ocean currents?
Disadvantages – Sometimes there will not be a lot of waves (which means no energy), It could interfere with ocean ecosystems in the area of the currents, and the temperature is raised wherever ocean currents are happening (which could also ruin an ecosystem).
