UK Air masses

What is an Air Mass?

• A large 'chunk' of air that has a certain temperature and humidity depending on where it has come from

• A large 'chunk' of air that always brings stormy weather

Where does the tropical continental air mass come from?

• The Arctic

• North Africa

• France

What are the characteristics of the tropical continental air mass (click two answers)

• hot

• cold

• moist

• dry

Where does the Polar Continental air mass come from?

• The Sahara desert

• Eastern Europe and Russia

• South Pole

What are the characteristics of polar continental air? (click two answers)

• hot

• cold

• moist

• dry

Which is the most common air mass in the UK?

• tropical maritime

• polar maritime

• tropical continental

Where does the polar maritime air mass come from?

• Iceland

• Northern Canada or Greenland

• France

What are the characteristics of the polar maritime air mass?

• hot

• cold

• moist

• dry

How does the polar maritime air mass change as it crosses the Atlantic Ocean?

• Air mass becomes warmer with increased moisture

• Air mass becomes cooler and drier

How many air masses affect the UK?

• ten

• four

• six

• five