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Chapter 8 Section 3

TermDefinition
Air mass A huge body of air that has similar temperature, humidity, and air pressure, at any given height
Tropical air mass A warm air mass that forms in the tropics and has low air pressure
Polar air mass A cold air that forms north of 50 degrees north latitude or south 50 degrees south latitude and has high air pressure
Continental Air Mass A dry air mass that forms over land
Front The boundary where unlike air masses meet but do not mix.
Occluded Front Cut off, as in a front where a warm air mass is caught between two cooler air masses
Cold front the boundary of an advancing mass of cold air, in particular the trailing edge of the warm sector of a low-pressure system
Warm front the boundary of an advancing mass of warm air, in particular the leading edge of the warm sector of a low-pressure system
Stationary font a front between warm and cold air masses that is moving very slowly or not at all
Maritime air mass a humid air mass that forms over oceans
Created by: BrandonTran