Cloud Formation Mechanisms. A little quiz…

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Presentation transcript:

Cloud Formation Mechanisms

A little quiz…

Cloud Formation Mechanisms

Cloud Formation: In General Moist air cools to dew point. Dew Point = temp. for saturation of air. When air temp < DP, air is supersaturated. Condensation or sublimation occurs. Air must be lifted to get it to cool.

Methods of Lifting Orographic lifting Frontal action Convergence Convection

Orographic Lifting Warm Moist Air Dew Point

Orographic Clouds over Santa Catalina Mountains

Warm Frontal Action Warm Moist Air Cold Dense Air Surface of Ground Dew Point

Cold Front Action Surface of Ground Warm Moist Air Cold Dense Air Dew Point

Cold Front Clouds Forming

Convergence Surface of Ground Dew Point

ITCZ Wind Convergence & Clouds ITCZ Clouds Northeast Trades Southeast Trades

Cyclonic Convergence L L

Convection Radiation Convection

Convection Clouds

Convection Over Lake Michigan Warm Water Cold Air Warmed Air Conduction Convection

Methods of Lifting Orographic lifting Frontal action Convergence Convection L

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