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SlideshowReport

Idealized Global Circulation

Description
Underlying cause is unequal surface heating
On the rotating Earth there are three pairs of atmospheric cells that redistribute the heat

Equatorial low pressure zone
Rising air
Abundant precipitation

Subtropical high pressure zone
Subsiding, stable, dry air
Near 30 degrees latitude
Location of great deserts
Trade winds
Westerly winds

Subpolar low pressure zone
Warm and cool winds interact
Polar front – an area of storms
Polar high pressure zone
Cold, subsiding air
Polar easterly winds
Polar front
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