Atmosphere and standard atmosphere · Question 9 of 12
How does the height of the tropopause change from the poles to the equator?
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Answer
- A It rises from about 8 km at the poles to about 16 to 18 km at the equator
Explanation
Warmer air expands more, so the tropopause is highest over the tropics and lowest over the poles. The ISA value of 11 km is an average for mid-latitudes. In winter and in cold air it is lower than in summer.