What are the 4 types of wind?
The four major wind systems are the Polar and Tropical Easterlies, the Prevailing Westerlies and the Intertropical Convergence Zone. These are also wind belts. There are three other types of wind belts, also. They are called Trade Winds, Doldrums, and Horse Latitudes.
What are the 6 prevailing winds?
The Earth contains five major wind zones: polar easterlies, westerlies, horse latitudes, trade winds, and the doldrums. Polar easterlies are dry, cold prevailing winds that blow from the east.
Are trade winds easterlies or westerlies?
When air moves in a definite direction, it is called wind. If the winds move from west to east, they are called westerlies. If they move from east to west, they are called easterlies.
What are the three types of wind class 7?
They are also known as prevailing winds or planetary winds. They are of three types-trade winds, westerlies and polar winds.
What is the difference between trade winds and westerlies?
Trade winds blow between 30° North and 30° South latitudes but the westerlies blow between 30° and 60° on either side of the equator. There are known as westerlies because they blow out of the west.
What are variable westerlies?
The westerlies, anti-trades, or prevailing westerlies, are prevailing winds from the west toward the east in the middle latitudes between 30 and 60 degrees latitude. They originate from the high-pressure areas in the horse latitudes and trend towards the poles and steer extratropical cyclones in this general manner.
Why are prevailing winds Westerly?
Generally, prevailing winds blow east-west rather than north-south. This happens because Earth’s rotation generates what is known as the Coriolis effect. The Coriolis effect causes some winds to travel along the edges of the high-pressure and low-pressure systems. These are called geostrophic winds.
What are polar easterlies and westerlies and Tradewinds?
Polar easterlies are dry, cold prevailing winds that blow from the east. They emanate from the polar highs, areas of high pressure around the North and South Poles. Polar easterlies flow to low-pressure areas in sub-polar regions. Westerlies. Westerlies are prevailing winds that blow from the west at midlatitudes.
What are equatorial westerlies?
Quick Reference. The westerly winds that sometimes develop within the equatorial trough when the Intertropical Convergence Zone is well north or south of the Equator. The north-easterly or south-easterly trade winds cross the Equator and, because of the reversal of the Coriolis effect, acquire a westerly component.
What is the difference between the trade winds and the polar easterlies?
The polar easterlies refers to an easterly wind belt found between the weak polar anticyclone and the westerly depression. The trade winds are predominately easterly winds that blow steadily over the ocean areas. The westerly winds are strong winds blowing from the west.
What is a polar Westerly?
In Pacific Ocean: The westerlies. Within the belts of the westerly winds, cold easterly winds from polar regions meet the warm westerly winds of the middle latitudes, causing the formation of the traveling depressions characteristic of middle latitudes.
What is a characteristic of westerly winds?
The main characteristics of the Westerlies are: They blow from Sub Tropical High Pressure Belts to the Sub Polar Low Pressure Belts between 300 to 600N of the Equator in the temperate latitudes. They are responsible for carrying warm equatorial waters and winds to the western coasts of the temperate lands.
Where do the polar easterlies and westerlies come from?
Polar easterlies are dry, cold prevailing winds that blow from the east. They emanate from the polar high s, areas of high pressure around the North and South Poles. Polar easterlies flow to low-pressure areas in sub-polar regions. Westerlies are prevailing winds that blow from the west at midlatitude s.
Where are the directions of the westerlies located?
The directions of the Westerlies are opposite to trade winds and that is why they are also called antitrade winds. Westerlies blow in the middle latitudes between 30 and 60 degrees latitude, and originate from the high pressure area in the horse latitudes towards the poles.
Why are winds from west to East called westerlies?
If the winds move from west to east, they are called westerlies. If they move from east to west, they are called easterlies. There are winds because there are differences in pressures. The direction of wind is also affected by coriolis affect.
What causes the trade winds to move from east to West?
This is called the Coriolis Effect. The Coriolis Effect, in combination with an area of high pressure, causes the prevailing winds—the trade winds—to move from east to west on both sides of the equator across this 60-degree “belt.”