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True. When surface currents encounter continents, they are deflected or change direction due to the landmass's obstruction. This phenomenon can lead to the formation of boundary currents and can influence local climate and marine ecosystems. The interaction between currents and continental margins is a key aspect of ocean circulation.
Convection Currents.
Continents can block the flow of surface currents, creating barriers that deflect the currents in different directions. They can also influence the direction and speed of currents by shaping the coastlines and creating deep ocean basins that can channel currents. Additionally, continents can impact the distribution of heat and moisture, which can affect the intensity and direction of surface currents.
The western coasts of continents tend to be warmer than the eastern coasts because of ocean currents. In the Northern Hemisphere, warm ocean currents move from the equator towards the poles along western coastlines, raising temperatures. Meanwhile, cold ocean currents flow from the poles towards the equator along eastern coastlines, bringing cooler temperatures.
Ocean currents are deflected to the right in the Northern Hemisphere due to the Coriolis effect, a result of the Earth's rotation. As water moves northwards, it is deflected to the right, creating clockwise-flowing currents.
Mantle convection currents beneath a continental-continental convergent boundary would likely be disrupted and deflected due to the collision of the continental plates. This collision would create intense compression and thickening of the crust, altering the flow patterns and direction of the mantle convection currents in the affected region.
The coriolis effect makes ocean currents move in a curved path.
Eastern boundary currents are relatively shallow, broad, and slow-flowing. Western boundary currents are warm, deep, narrow, and fast-flowing currents that form on the west side of ocean basins due to western intensification.
Eastern boundary currents are relatively shallow, broad, and slow-flowing. Western boundary currents are warm, deep, narrow, and fast-flowing currents that form on the west side of ocean basins due to western intensification.
The coastlines that deflect equatorial currents are primarily those of South America and Africa. In South America, the eastward flowing North Equatorial Current is deflected southward along the coast, contributing to the formation of the Brazil Current. Similarly, the coast of Africa experiences deflection of the North Equatorial Current, which is redirected towards the southwest, resulting in the Canary Current. These coastlines play a crucial role in shaping oceanic circulation patterns.
Eastern boundary currents are relatively shallow, broad, and slow-flowing. Western boundary currents are warm, deep, narrow, and fast-flowing currents that form on the west side of ocean basins due to western intensification.