Chapter 4 Moisture and Atmospheric Stability The Atmosphere 10e

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Chapter 4 Moisture and Atmospheric Stability

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Presentation transcript:

Chapter 4 Moisture and Atmospheric Stability The Atmosphere 10e Lutgens & Tarbuck Power Point by Michael C. LoPresto

Steam Fog over a Lake

The Hydrologic Cycle

Water’s Changes of State

Ice

Water

Condensation of Water Vapor Generates Fog

Frost on a Window Pane

Humidity Is the Content of Water Vapor in the Air

Relationship between Vapor Pressure and Saturation

Saturation Vapor Pressure Varies with Temperature

Hot desert air with low relative humidity will actually have a higher water vapor-content than frigid air with high

Relative Humidity Changes with Added Moisture

Relative Humidity Changes with Temperature

Daily Changes in Relative Humidity with Temperature

Cold Drinking-glasses Chill Surrounding Air to the Dew-Point Condensation on Cold Drinking-glasses

Dew Point Temperatures

Sling Psychrometer

Adiabatic Temperature Changes

Dry and Wet Adiabatic Rates

Lifting Processes Orographic

Heavy Precipitation in Mountains Snow Pack in the Rocky Mountains

Death Valley Rain Shadow Desert

Frontal Wedging

Convergence

Convergence over Southern Florida

Wetter Windward Locations and Leeward Rain Shadows

Convection

As long as air in a balloon is hotter than the surrounding air, it will rise

Adiabatic Cooling

Atmospheric Stability Absolute Stability

Absolute Instability

Conditional Stability

An Unstable Atmosphere

Chapter 4 END