BACK TO troposphere
troposphere vs. stratosphere
[ trop-uh-sfeer, troh-puh- ]
- the lowest layer of the atmosphere, 6 miles (10 km) high in some areas and as much as 12 miles (20 km) high in others, within which there is a steady drop in temperature with increasing altitude and within which nearly all cloud formations occur and weather conditions manifest themselves.
[ strat-uh-sfeer ]
- the region of the upper atmosphere extending upward from the tropopause to about 30 miles (50 km) above the earth, characterized by little vertical change in temperature.
- (formerly) all of the earth's atmosphere lying outside the troposphere.
- any great height or degree, as the highest point of a graded scale.