Anticyclones (High pressure systems)

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What is an anticyclone?
A high air pressure system (over 1,000 millibars) and much larger than a depression
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What direction does air move in an Anticyclone?
Air slowly subsides towards the ground
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What sources of high pressure affect the UK in summer?
Movement of the sub-tropical high pressure belt Northwards means UK experiences high pressure
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What sources of high pressure affect the UK in winter?
Cold air masses from central Asia bring high pressure due to large landmass becoming very cold and cooling the air above it. This air shifts and sinks creating high pressure at the surface
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How does the Jet stream create high pressure?
Convergence of pressure in the jet stream causes air to be forced downwards out of the jet steam
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Other cards in this set

Card 2

Front

What direction does air move in an Anticyclone?

Back

Air slowly subsides towards the ground

Card 3

Front

What sources of high pressure affect the UK in summer?

Back

Preview of the front of card 3

Card 4

Front

What sources of high pressure affect the UK in winter?

Back

Preview of the front of card 4

Card 5

Front

How does the Jet stream create high pressure?

Back

Preview of the front of card 5

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