Causes of Aridity (AQA A-Level Geography): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
Latitude range where hot deserts typically form
Latitude range where hot deserts typically form
20-30° both north and south of Equator
Hadley cells
Hadley cells
Circulation patterns between Equator and 30° latitude
ITCZ (Inter-tropical convergence zone)
ITCZ (Inter-tropical convergence zone)
Area of low pressure at Equator
Effect of descending air at 20-30° latitude
Effect of descending air at 20-30° latitude
Warms, expands, humidity drops, creates clear skies
Continentality
Continentality
Effect of distance from sea on climate
Distance of central Sahara from nearest sea
Distance of central Sahara from nearest sea
More than 2,000 km
Rain shadow effect
Rain shadow effect
Dry conditions on leeward side of mountains
Leeward side of mountain
Leeward side of mountain
Downwind side (experiences rain shadow aridity)
Where cold ocean currents create coastal deserts
Where cold ocean currents create coastal deserts
Western coasts of continents in subtropical latitudes
Cold current affecting Atacama Desert
Cold current affecting Atacama Desert
Peruvian Current (Humboldt Current)