Global Air Circulation

Question 1

What is a pressure belt?

Answer 1

Large part of the earth where predominantly high or low atmospheric pressure occurs

Question 2

How many main pressure belts are there in the world?

Answer 2

4

Question 3

What is the equatorial low pressure belt also known as

Answer 3

Doldrums

Question 4

What are the subtropical high pressure belts also called

Answer 4

Horse latitudes

Question 5

What is a cell

Answer 5

Three dimensional mass of air that extends up into the atmosphere

Question 6

List the three cells

Answer 6

Hadley , Ferrell and polar

Question 7

What is the Ferrell cell also referred to as ?

Answer 7

The mid-latitude cell

Question 8

List the three planetary winds

Answer 8

Tropical easterlies , westerlies , polar easterlies

Question 9

What are the tropical easterlies also known as ?

Answer 9

Trade winds

Question 10

What is the function of planetary winds ?

Answer 10

They are responsible for the distribution of heat from areas of heat surplus to areas of heat defecit

Question 11

How would you know on a map that it is summer in the Southern Hemisphere

Answer 11

ITCZ and thermal equator are south of the equator and the subtropical high pressure is further south

Question 12

How would you know that it’s winter in the Southern Hemisphere?

Answer 12

Subtropical high pressure is over land, ITCZ and thermal equator are north of the equator. ITCZ pulls the high pressure belt with it

Question 13

Which pressure belts are referred to as thermal pressures?

Answer 13

Polar high pressure and the equatorial low pressure

Question 14

Which pressure belts are referred to as dynamic pressures

Answer 14

Sub-tropical high pressure and sub polar low pressure

Question 15

Which wind carries tropical cyclones ?

Answer 15

Tropical easterlies

Question 16

Which wind carries mid-latitude cyclones?

Answer 16

Westerly winds

Question 17

Another way of describing the thermal equator?

Answer 17

Zone of greatest heat