Global Atmospheric Circulation - Paper 1 Flashcards
Why is the temperature hot at the equator?
Where the sun’s energy is most concentrated
What effect does the concentration of the sun’s energy there have on the temperature at the equator?
High temperature
Broadly, what effect does hot temperature have on the movement of the air?
Causes it to rise
Is the equator an area of high or low pressure?
Low pressure
because the hot air there rises and moves either north or south
Think low pressure, sad, rain
Name the cells either side of the equator
Hadley cells
What is the interval between all cells in global atmospheric circulation?
30 degrees
Is pressure high or low at the poles?
High
(why there is little precipitation)
What is wind?
The movement of air from high to low pressure
Because the equator is a band of low pressure, describe the pressure at 30 degrees N + S
High
Because the equator is a band of low pressure, describe the pressure at 60 degrees N + S
Low
Name the cells of global atmospheric circulation starting from the equator
Hadley, Ferrel, Polar
Ferrel is the feral, wild, middle child
Name the cells of global atmospheric circulation starting from the poles
Polar, Ferrel, Hadley
Name the cell between 30 and 60 degrees N+S
Ferrel
Ferrel is the middle cell
The feral middle child as air there also travels in the other direction to the other cells in the same hemisphere
Why is it cold at the poles?
The sun’s energy is spread out over a large area
