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Atmospheric convection

2:22

Convection

2:32

6. Convection in the Atmosphere

2:46

Radiation and heat transfer in the atmosphere

2:56

Convection Cell

3:35

What is global circulation? | Part Two | The three cells

Atmospheric convection is the result of a parcel-environment instability, or temperature difference, layer in the atmosphere. Different lapse rates within dry and moist air masses lead to instability. Mixing of air during the day which expands the height of the planetary boundary layer leads to increased winds, cumulus cloud development, and decreased surface dew points. Moist convection leads to thunderstorm development, which is often responsible for severe weather throughout the world. Special threats from thunderstorms include hail, downbursts, and tornadoes.
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    • Overview 

    • Initiation 

    • Concerns regarding severe deep moist convection 

    • Measurement