what is the definition of westerlies

What are westerlies simple definition?

/ (ˈwɛstəlɪz) / pl n. meteorol the prevailing winds blowing from the west on the poleward sides of the horse latitudes, often bringing depressions and anticyclones.

Where are the westerlies?

Prevailing Westerlies are the winds in the middle latitudes between 35 and 65 degrees latitude. They tend to blow from the high pressure area in the horse latitudes towards the poles. These prevailing winds blow from the west to the east steering extratropical cyclones in this general manner.

What are westerlies and easterlies?

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 is a sentence for westerlies?

Westerlies sentence example

The front will press across the UK during Friday, bringing westerlies . … Air moving from the high-latitude sides of the same high-pressure belts toward the poles produces the prevailing westerlies .

What is westerly direction?

A westerly point, area, or direction is to the west or towards the west. … A westerly wind blows from the west. … a prevailing westerly wind.

Are westerlies cold or warm?

The winter westerlies, often from the southwest, bring in warm tropical air; in summer, by contrast, they veer to the northwest and bring in cooler Arctic or subarctic air. In Mediterranean Europe the rain-bearing westerlies chiefly affect the western areas, but only in winter.

What are westerlies Class 7?

The Westerlies:

The westerlies blow from the sub-tropical high pressure belt to the sub-polar low pressure belts. They are called the westerlies as they blow constantly from the west.

Why are westerlies called westerlies?

The name of these unique winds comes from the direction of their origin; the westerlies run west to east while other winds run east to west. … This distinction is due to the air pressure over the poles during the winter. Lower pressure means stronger westerly winds.

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 Ferrel cell in geography?

Ferrel cell, model of the mid-latitude segment of Earth’s wind circulation, proposed by William Ferrel (1856). In the Ferrel cell, air flows poleward and eastward near the surface and equatorward and westward at higher altitudes; this movement is the reverse of the airflow in the Hadley cell.

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.

How does the Tricellular model work?

The tricellular model is made up of three different air masses, these control atmospheric movements and the redistribution of heat energy. … The ITCZ is a low-pressure area where the trade winds, which have picked up latent heat as they crossed oceans, are now forced to rise by convection currents.

What polar easterlies mean?

From Wikipedia, the free encyclopedia. In the study of Earth’s atmosphere, polar easterlies are the dry, cold prevailing winds that blow around the high-pressure areas of the polar highs at the North and South Poles.

What is the meaning of horse latitudes?

The horse latitudes are subtropical regions known for calm winds and little precipitation. The horse latitudes are regions located at about 30 degrees north and south of the equator. These latitudes are characterized by calm winds and little precipitation. … Thus, the phrase ‘horse latitudes’ was born.

Are trade winds easterlies?

The trade winds or easterlies are the permanent east-to-west prevailing winds that flow in the Earth’s equatorial region. … The weaker the trade winds become, the more rainfall can be expected in the neighboring landmasses.

What is easterly wind?

An easterly wind is a wind that blows from the east. … the cold easterly winds from Scandinavia.

What are westerly winds Mcq?

Explanation: Westerly winds are winds blowing from sub-tropical high pressure areas to sub-polar low pressure areas. The direction of flow is from west to east between 30 and 60 degrees latitude. … Explanation: Monsoons, land and sea breeze, mountain and valley breeze are examples of periodic winds.

What is a west wind called?

A west wind can be known as a zephyr.

What do westerlies do?

The westerlies play an important role in carrying the warm, equatorial waters and winds to the western coasts of continents, especially in the southern hemisphere because of its vast oceanic expanse.

Where are doldrums located?

the equator
The “doldrums” is a popular nautical term that refers to the belt around the Earth near the equator where sailing ships sometimes get stuck on windless waters. This NASA satellite image shows the Inter-Tropical Convergence Zone, known to sailors around the world as the doldrums.Feb 26, 2021

Why are westerlies stronger in winter?

Westerlies are strongest in the winter, when pressure over the pole is low, and weakest in summer, when the polar high creates stronger polar easterlies. … The horse latitudes are a narrow zone of warm, dry climates between westerlies and the trade winds.

What is a thunderstorm Class 7?

A thunderstorm is a storm with sound and lightning and typically also heavy rain or hail. Thunderstorms develop in hot and humid areas. High temperature in this areas cause hot humid (with water vapours) air to rise up. … At high altitude, these water drops freeze and fall again towards earth.

What are the 3 types of winds?

The three chief types of winds are Trade winds, Westerlies, and polar winds.

What is humidity class 7th?

Answer: The amount of water vapour in the atmosphere is called humidity.

What are the screeching sixties?

screaming sixties pl (plural only) The area of the earth between 60 and 70 degrees south, prone to strong winds and extreme waves quotations ▼

Are south westerly winds cold?

Southwesterly wind bring warm air from the tropics, which is cooled from below as it moves northwards over a gradually cooling sea. … However, southerly winds can sometimes bring hot, thundery weather. Easterly winds in winter bring very cold air to the British Isles.

How many Hadley cells are there?

The global circulation

In each hemisphere there are three cells (Hadley cell, Ferrel cell and Polar cell) in which air circulates through the entire depth of the troposphere.

What is Flohn theory?

The Equatorial Westerly Theory has been propounded by Flohn. He states that the equatorial westerly is the south-west monsoon that is originates because of inter-tropical convergence. The Equatorial Westerly. According to him, the thermal effect as the main reason for the origin of the monsoon.

What is the full form of ITCZ?

ITCZ stands for Intertropical Convergence Zone. It is an area between the Northern and Southern Hemisphere where winds converge from the mid-latitudes blowing equator-ward and winds flowing poleward from the tropics.

What are the mechanism of Indian monsoon?

Indian Monsoons are Convection cells on a very large scale. They are periodic or secondary winds which seasonal reversal in wind direction. India receives south-west monsoon winds in summer and north-east monsoon winds in winter.

What are atmospheric cells?


what is the definition of westerlies



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