Air masses and fronts - Earth Science · Microsoft PowerPoint - Air masses and fronts Author:...

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9/24/2019

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Winds Continued…

Remember…Warm air = less dense = rises = L pressureCold air = more dense = sinks = H pressureWind always moves from H to L

What is happening?

Land Breeze

SEA BREEZE

9/24/2019

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Other Processes That Lift AirConvergence and Convective Lifting

Orographic (Mountains) Lifting 1. Air rises on the windward side2. Clouds form as air cools at higher altitudes3. Dry air sinks on the leeward side.

Rain Shadows