New Hydrological Cycle

Question 1

What is the largest water store

Answer 1

Oceans - they contain 97% of global water

Question 2

How much does freshwater store?

Answer 2

2.5%

Question 3

Describe the Hadley cell

Answer 3

Air rises at the equator (the doldrums) this hot air rieses, and then sinks as it meets the cooler ferrel cell.
At this meeting precipitation tends to occur, the air travels southwards heating up as it does
It then has enough heat to rise up again at the doldrums commencing cycle again

Question 4

Describe the polar cells

Answer 4

Cold air sinks near the arctic circle, this cools and condenses to form precipitation over northern latitudes
The air then travels southwards heating until it reaches the warm air from the ferrel cell
The air then rises causing dry conditions for land beneath, air then travels northwards cooling as it does

Question 5

Describe the ferrel cell

Answer 5

The middle of the ITCZ, air circulation is determined by the Hadley and polar cells either side similar to a cog system