Air Masses.

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Air Masses and Weather Fronts

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Air Masses and Weather Fronts

Presentation transcript:

Air Masses

Air Masses An air mass is a large body of air that takes on characteristics of the air over which it forms over Source region Air masses can form over land or water Air masses take on the temp of where they form and those that form over land are drier of those formed over water

httpSummer and Winter Air Masses

Air Mass Modification Air masses do not stay in one place indefinitely The air mass will move and can take over new characteristics because the land below it is different then the source region When this happens, it is called air mass modification