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ATMOSPHERE
Lesson 3 - Page 2

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The heating of air molecules from the Sun is the primary mover of air. The Sunís radiation and the tilting of the Earth on its axis cause uneven heating of our atmosphere. Unlike the land and ocean, the air responds quickly to heat changes. These differences in temperature help move the wind.

The other major cause of winds is the rotation of the Earth. The Coriolis effect, which we discussed as a cause of ocean currents, moves air currents as well.


Deflection caused by rotating Earth


The red is the hottest temperature and the blue is the coolest temperature for air masses

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