Global atmospheric circulation Flashcards
Which cell is based at the top/bottom of the earth
Polar cell
What is the motion of air in the polar cell
Descending cooler, dry air
Which cell is the one in the middle of the other two?
Ferrell cell
What is the motion of air in the Ferrell cell?
Rising warm, moist air
Which cell is at the equator?
Hadley cell
What is the motion of air at the Hadley cell?
Descending cooler, dry air
What is created when air cools and sinks, t the polar cell?
A belt of high pressure and a cold dry climate
What occurs at 60°N and S (global circulation)
Cold polar air mixes with warmer air and rises, creating a belt of low pressure
What happens at the Tropic of Cancer during global circulation
Cool air sinks, creating a belt of high pressure. As this air sinks it becomes warmer and drier.
What happens at the equator during global circulation?
Warm air rises, creating a belt of low pressure. As this rises it cools.
Clouds form and release precipitation
Is suns heat concentrated or spread out at the equator?
Concentrated
Is the suns heat spread out or concentrated at the poles?
Spread out