Thermodynamics Atmosphere

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Presentation transcript:

Thermodynamics Atmosphere Moisture and atmospheric stability

Vertical Structure of the Atmosphere What is the pressure vertical gradient of the atmosphere?

Processes That Lift Air – orographic lifting

Processes That Lift Air: frontal lifting

Processes That Lift Air: convergence

Processes That Lift Air: Localized convective lifting

Poisson Equation

Adiabatic Temperature Changes

Environmental Lapse Rate

Environmental Lapse Rate

Atmospheric Stability

Atmospheric Stability

Stability and Daily Weather Instability is enhanced by: Intense warming of the lowest layer of the atmosphere Heating of an air mass from below Wintertime polar air moves southward over the great lakes Radiation cooling from cloud tops Stability is enhanced by: Radiation cooling of Earth’s surface after sunset Cooling of an air mass from below as it traverses cold surfaces Warm air from the Gulf of Mexico moves northward to the cold land of Midwest in winter

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