Why is the UK influenced by a number of air masses?

How many air masses influence the UK’s climate?

There are 5 main air masses that affect the UK. These are polar continental, arctic maritime, polar maritime, tropical maritime and tropical continental. Each brings unique weather to the UK.

What influences the UK climate?

The main influence on Britain’s climate which are important are latitude , altitude ,distance from the sea, ocean currents and the prevailing winds.

Which air masses affect the UK and where?

The four main air masses that affect the British Isles are:

  • Tropical maritime (warm and moist air)
  • Tropical continental (warm and dry air)
  • Polar maritime (cold and moist air)
  • Polar continental (cold and dry)

Which cell influences the climate of the UK?

Warm moist air from the tropics gets fed north by the surface winds of the Ferrel cell. This then meets cool dry air moving south in the Polar cell. The polar front forms where these two contrasting air mass meet, leading to ascending air and low pressure at the surface, often around the latitude of the UK.

What is the air mass in UK?

An air mass is a large volume of air which travels from one area to another. The weather an air mass brings is determined by the region it has come from and the type of surface it has moved over. There are five main air masses which affect the UK as detailed by the map below.

Air masses.

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Source area Characteristics
Arctic Cold

Why does the UK weather vary?

The variability of weather and climate in different regions of the British Isles is due to the different air masses that meet over the Isles. Each air mass brings with them different characteristics, as shown in the map below.

How prevailing wind affects UK climate?

In Britain the prevailing wind is from the South West, which brings warm, moist air from the Atlantic Ocean. This contributes to the frequent rainfall. When prevailing winds blow over land areas it can contribute to creating desert climates.

How does latitude affect the weather in the UK?

Latitude. Locations that are further north receive less concentrated energy from the Sun. … This means that in the Northern Hemisphere , the Sun’s energy becomes less concentrated and therefore the temperatures become cooler as you travel further away from the equator.

What happens when two air masses meet?

When two different air masses come into contact, they don’t mix. They push against each other along a line called a front. When a warm air mass meets a cold air mass, the warm air rises since it is lighter. At high altitude it cools, and the water vapor it contains condenses.