climate change+global atmospheric circulation Flashcards
1
Q
what is the global atmospheric circulation system?
A
the movement of air across the planet which occurs in a specific pattern.
2
Q
what drives the global atmospheric circulation system?
A
the equator- which is the hottest part of the earth
3
Q
what does air do at the equator?
A
hot air rises
4
Q
what happens at 30° north and south of the equator?
A
the air becomes colder and denser and falls, creating areas of high pressure and dry conditions
5
Q
what does global atmospheric circulation create?
A
it creates winds across the planet, and leads to areas of high rainfall, like the tropical rainforests, and areas of dry air like deserts
6
Q
what happens at the Hadley cell?
A
- at the equator the ground is intensely heated by the sun
