Exploring Winds

Fun Way to Study

What are Global Winds

  • The combination of pressure belts and the Coriolis Effect cause global winds
  • These are polar easterlies, prevailing westerlies, and trade winds

Local Winds

  • Generally move short distances and can blow any directions
  • caused by differences in heating that produces temperature differences

Types of Global Winds

6 4 9 Global Winds and Jet Streams

Sea Breezes vs. Land breezes

What is the difference between Sea Breezes and Land Breezes because Sea breezes blow from the sea onto the land. While land Breezes blow from Land to the ocean. Another Difference the 2 winds have is that they both blow in opposite directions. Although their differences The thing they both have in common is that they are both caused by uneven heating of earths surface.

Doldrums

Doldrums are an equatorial region of the Atlantic Ocean with calms, sudden storms, and light unpredictable winds.They are calm periods.

Trade Winds, Prevailing Westerlies, and Prevailing Easterlies

What are Trade Winds

The trade winds are just air movements toward the equator. They are warm, steady breezes that blow almost continuously. The Coriolis Effect makes the trade winds appear to be curving to the west, whether they are traveling to the equator from the south or north.

What are Doldrums?

The doldrums is an area of calm weather. The trade winds coming from the south and the north meet near the equator. These converging trade winds produce general upward winds as they are heated, so there are no steady surface winds.

What are the prevailing westerlies?

Between thirty and sixty degrees latitude, the winds that move toward the poles appear to curve to the east. Because winds are named from the direction in which they originate, these winds are called prevailing westerlies. Prevailing westerlies in the Northern Hemisphere are responsible for many of the weather movements across the United States and Canada.

What are the polar easterlies?
At about sixty degrees latitude in both hemispheres, the prevailing westerlies join with the polar easterlies to reduce upward motion. The polar easterlies form when the atmosphere over the poles cools. This cool air then sinks and spreads over the surface. As the air flows away from the poles, it is turned to the west by the Coriolis effect. Again, because these winds begin in the east, they are called easterlies.