Global atmospheric circulation (Edexcel GCSE Geography A): Flashcards
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Practise the cards
15 cards from this deck
Purpose of global atmospheric circulation
Purpose of global atmospheric circulation
Transfers heat from equator to poles
Earth's source of heat energy
Earth's source of heat energy
Sun through solar radiation
Where heat surplus occurs
Where heat surplus occurs
At the equator
Where heat deficit occurs
Where heat deficit occurs
At the poles
Number of circulation cells per hemisphere
Number of circulation cells per hemisphere
Three
Effect of rising warm air
Effect of rising warm air
Creates low pressure areas
Effect of sinking cold air
Effect of sinking cold air
Creates high pressure areas
Circulation cell closest to equator
Circulation cell closest to equator
Hadley cell
Where Hadley cell air sinks (latitude)
Where Hadley cell air sinks (latitude)
30° north and south
Winds from 30° high pressure to equator
Winds from 30° high pressure to equator
Trade winds
Cell in middle latitudes (30-60°)
Cell in middle latitudes (30-60°)
Ferrel cell
Cell near North and South Poles
Cell near North and South Poles
Polar cell
Winds from Ferrel cell (30-60°)
Winds from Ferrel cell (30-60°)
Westerly winds
Gulf Stream effect on UK temps
Gulf Stream effect on UK temps
Raises by 5-10°C above expected
Ocean currents' heat transfer role
Ocean currents' heat transfer role
Move warm water to poles, cold to equator