Tropopause Height Changes MET
The height of the tropopause varies for two main reasons:
- The air at the equator is being "flung outwards" on account of the higher speed of travel.
- The air expands as it is hotter closer to the equator.
Both of these factors have the effect of making the height of the tropopause vary with latitude, with it being greater at the equator. You can imagine this as a flattened oval (the tropopause) surrounding a circle (the earth).
To answer the question, draw this diagram, mark where you are on the circle and then put an arrow in the direction you are travelling, and this will answer the question. With either increasing latitude or distance from the Equator, the tropopause reduces in height.
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How does tropopause height vary with an increase in latitude in the southern hemisphere?