What is the approximate makeup of the atmosphere?
78% nitrogen
20% oxygen
2% other
What are the layers of the atmosphere from lowest to highest?
Ground
Troposphere
Tropopause
Stratosphere
Stratopause
Mesosphere
Mesopause
Thermosphere
Exosphere
Outer space
What is the approximate height of the troposphere over the equator and the poles?
Over the poles: 30,000ft
over the equator: 60,000ft
Over Australia: approximate 33,000ft
How are the layers of the atmosphere defined?
Defined by the way that temperature behaves as height increases
How does temperature change in the stratosphere?
Generally increases with altitude
What is a layer of atmosphere called when the temperature remains constant with an increase in altitude?
A isothermal layer
Where is the subtropical ridge located?
Between the mid-latitudinal and the Hadley cell
What is another name for the equatorial trough and where is it located?
Monsoonal trough.
Located between the two Hadley cells
Describe the movements of the equatorial trough throughout the year
the trough moves further north of the equator in June and further south of the equator in December
Is the inter-tropical convergence zone high or low pressure?
The ITCZ is low pressure
