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Chapter 8 Section 3
| Term | Definition |
|---|---|
| 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 |