Pressure Systems
What is air pressure?
A column of air that will exert force on the air, surface, or object below it.
Continental Arctic is associated with...
Extreme cold and dry air (forms over land or ice)
What is a front?
Boundary between two air masses
What are global winds?
Huge convection currents that shape weather and climate
Which way does the air circulate in a high pressure system and in a low pressure system?
Low: Counter-Clockwise High: Clockwise
Continental Polar is associated with...
Cool in the summer, cold in the winter, dry air
What does a cold front bring?
Large rain clouds, severe storms, cooler temperatures
What are the 3 convection cells?
Hadley Cell, Mid-Latitude Cell, Polar Cell
What type of weather is associated with low pressure?
Warm/humid air, cloudy conditions, stormy weather, and strong winds
Maritime Polar is associated with...
Cold, humid, rainy weather
What does a warm front bring?
Where do the Prevailing Westerlies blow from?
West
What type of weather is associated with high pressure?
Fair weather, clear/sunny skies, cool/dry air, and light winds
Continental Tropical is associated with...
Dry, hot, clear/warm weather
How does a stationary front move?
It stays still (does not move)
Where do the Polar Easterlies blow from?
East
What tool is used to measure air pressure?
Barometer
Maritime Tropical is associated with...
Warm/hot air, humid
What does an occluded front bring?
Moderate to severe precipitation, possible thunderstorms, clear/dry skies, cooler air once it passes
A dead zone where little wind blows