The troposphere is the region of the atmosphere that our active weather is confined to, and extends up to about 40,000 feet altitude (a pressure of about 200 mb) in the tropics in summer.

At an altitude above 20,000 feet ... This puts the jet stream near the top of the Earth's troposphere, where most of the Earth's weather occurs. The core of the jet, a fast-moving wind current ...

The stratosphere is the atmospheric layer extending from 10 km to about 50 km in altitude above the Earth's surface. Below this is the troposphere, which is in contact with the oceans and ...

"For the troposphere and stratosphere ... the Antarctic mesosphere and Arctic stratosphere, in which rare high-altitude clouds regularly appear and disappear at the same time, usually in the ...

The traditional view of the atmosphere holds that the troposphere, which extends from the Earth's surface to an altitude of about 10 km, is the main 'weather layer'. However, in recent years ...