8.1 Flashcards
How far does the troposphere extend from the earths surface
8-14.5 km (5-9 miles)
How far does the troposphere lie above equatorial regions and above the polar regions
Equ- 17km
Pol- 9km
What’s the tropopause
The thermodynamic layer that marks the end of the troposphere, boundary between troposphere and stratosphere
Is the air thinner in the tropopause or the troposphere and what benefit does this provide
Air is thinner I’m the tropopause
Results is less drag and higher fuel efficient
What can the tropopause also be described as ans why
An isothermal layer because it has a constant temperature
How high does the stratosphere extend to
50km
What part of the atmosphere contains the protective ozone layer
Stratosphere
What part of the atmosphere is to dry for clouds to form which would also cause the temp to not vary with atmosphere
Stratosphere
What’s generally the constant temperature in the stratosphere
-56.5 c
What’s the pressure of air at sea level
1013.25hpa (14.7psi)
What happens air temp as alt increases
Decreases
What happens to pressure and density as altitude increases
Decrease
What’s relative humidity
The measure of the amount of water vapour present in the air compares to the max amount of water that the air can hold at a given temp
What happens to air density as air humidity increases
Decreases
What 3 main factors affect air density
Pressure, temp, humidity
