What Is The Main Role Of The Westerlies

What Is The Main Role Of The Westerlies?

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.

What are the main characteristics of the westerlies?

Characteristics of westerlies:
  • They blow in the middle latitudes between 35 and 65 degrees latitude.
  • They blow from the subtropical high-pressure belts towards sub-polar low-pressure belts.
  • The winds blow from the southwest in the Northern Hemisphere and from the northwest in the Southern Hemisphere.

What are the westerlies quizlet?

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 tend towards the poles and steer extratropical cyclones in this general manner.

How do westerlies work?

Westerlies are prevailing winds that blow from the west at midlatitudes. They are fed by polar easterlies and winds from the high-pressure horse latitudes which sandwich them on either side.

How do the westerlies affect the climate?

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.

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What is westerlies in geography?

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.

What is the impact of westerlies on Europe?

The westerlies have a greater climatic influence in western Europe because the west coast is constantly exposed to predominant westerly winds. In winter westerlies bring in warm tropical air from the southwest warming up the weather conditions.

What is found about 10 kilometers above Earth’s surface?

The jet streams are bands of high-speed winds about 10 kilometers above Earth’s surface.

What is true about local winds?

Local winds are winds that blow over short distances. Local winds are causd by the unequal heating of Earth’s surface within a small area. … As the sun heats Earth’s surface during the day the land warms up faster than the water. As a result the air over the land becomes warmer than the air over the water.

Which statement best describes local winds?

Which statement best describes local winds? They move over short distances. What do the arrows indicate? Air moves in a direction that creates land breezes.

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 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.

What are the components of westerly flow?

The options for the question – Which of the following is a component of westerly flow? The answer is Jet stream.

Why westerlies are stronger in Southern Hemisphere?

Westerlies are particularly strong especially in the southern hemisphere where there is less land in the middle latitudes to cause the flow pattern to amplify or become more north-south oriented. This creates frictional or drag in the motion which ultimately slows the Westerlies down.

How do westerlies affect the climate in Western Europe?

How do the prevailing westerlies affect the climate of Europe? … The prevailing westerlies pick up warmth from the North Atlantic Drift and carry it over Europe. The East is most affected because prevailing westerlies blow from the west to the east.

What is a characteristic of subtropical highs?

They are characterized by sunny skies calm winds and very little precipitation. They are also known as subtropical ridges or highs. It is a high-pressure area at the divergence of trade winds and the westerlies.

Which forces are responsible for the wind speed and wind direction of the westerlies?

The speed and direction of the wind is governed by three forces the pressure gradient force (PGF) the Coriolis Force and friction.

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 30 to 60N 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.

What are westerlies Upsc?

Westerlies. The westerlies are the winds blowing from the sub-tropical high pressure belts towards the sub polar low pressure belts. They blow from southwest to north-east in the northern hemisphere and north-west to south-east in the southern hemisphere.

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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.

Why westerlies have a greater climatic influence in Western Europe than in North America?

give PROPER reason(s) why “westerlies have a greater climatic influence in western Europe than in North America”. It is because the west coast is constantly exposed to predominant westerly winds with equable temperature regimes this helps it to get abundant precipitation through out the year. …

What does a westerly wind mean?

(especially of a wind) coming from the west: a westerly gale. … from the west: a sharp wind blowing westerly. noun plural west·er·lies. a wind that blows from the west: an occasional westerly that pommeled the island.

At what latitude does the prevailing westerlies meet the polar easterlies?

At about sixty degrees latitude in both hemispheres the prevailing westerlies join with the prevailing easterlies to reduce the upward motion.

What do we call the wind that blows from land to a body of water?

land breeze a local wind system characterized by a flow from land to water late at night. Land breezes alternate with sea breezes along coastlines adjacent to large bodies of water.

What instrument is used to measure wind speed?

anemometer

An anemometer also measures wind but it measures the speed of the wind. This instrument has three cups connected to rods which rotate on one center rod. Wind speed is measured in miles per hour. A hygrometer is another instrument used to measure weather.

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How are global and local winds alike?

How are global winds similar to local winds? They are both created by the unequal heating of Earth’s surface. … The trade winds the polar easterlies and the prevailing westerlies.

Which statement describes an important role of carbon dioxide in Earth’s atmosphere quizlet?

Plants use carbon dioxide to make food. – Carbon dioxide helps animals make proteins. – Carbon dioxide forms clouds that produce rain. Plants use carbon dioxide to make food.

Which is a major source of air pollution created by humans quizlet?

Most air pollution comes from motor vehicles and industry. Smog results from chemical reactions that involve sunlight air automobile exhaust and ozone.

What causes differences in air pressure Brainly?

Answer: These variations in air pressure are due to temperature differences caused by variations in solar energy received at the surface of the earth. … The air pressure on Earth is not the same everywhere.

What causes the differences in air pressure?

At sea level standard air pressure in millibars is 1013.2. … This change in pressure is caused by changes in air density and air density is related to temperature. Warm air is less dense than cooler air because the gas molecules in warm air have a greater velocity and are farther apart than in cooler air.

What is a land breeze quizlet?

Land Breeze. Land breezes are when the land cools faster than when warm air rises over the ocean and the cool air flows in. Land breezes has higher pressure at night over land.

Why does the Ferrel cell form?

The Ferrel cell occurs at higher latitudes (between 30 degrees and 60 degrees N and 30 degrees and 60 degrees S): … This uplift of air causes low pressure at the surface and the unstable weather conditions that are associated with the mid-latitude depressions.

What is the Ferrel cell driven by?

❑ Thermally Indirect Cell (Ferrel Cell) This cell rises over cold temperature zone and sinks over warm temperature zone. The cell is not driven by thermal forcing but driven by eddy (weather systems) forcing.

What is the Tricellular model?

The Tricellular Model is a simplified explanation of how atmospheric circulation patterns give rise to distinct weather and climatic conditions at various latitudes. It is based upon the premise of differential heating of the Earth’s surface.

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