Chapter 11-Movement In The Atmosphere Flashcards
Source region
A region with relatively uniform temperature and humidity over which air masses form
Warm air mass
Are warmer than the surface over which they pass
Cold air mass
Are cooler than the surface over which they pass
Stationary front
A zone of contact between two dissimilar air masses where neither is advancing
Warm front
Warm air is replacing cold air
Cold front
Cold air replacing warm air
Squall line
A line of violent thunderstorms
Occluded front
formed when a cool air mass and a rapidly moving cold air mass trap a warm air mass between them
Air mass
Is a huge body of air that has somewhat uniform temperature and humidity and covers hundreds or thousands of square kilometers on the earths surface