Troposphere: The lower layer of the atmosphere in which the change of temperature with height is relatively large and decreases with an increase in height. The troposphere extends up to approximately 33,000ft.
The troposphere has the following characteristics.
It extends from the earth's surface to an average of 12 km (7 miles).
The pressure ranges from 1000 to 200 millibars (29.92 in. to 5.92 in.).
The lowest layer, the troposphere, extends from the surface to an average altitude of 7 miles. The second layer is the stratosphere which is 26 to 29 miles thick. The boundary between the troposphere and stratosphere is called the tropopause.
Larger aircraft fly above the clouds at the top of the troposphere so precipitation isn't much a problem. In fact when larger aircraft fly through precipitation it doesn't cause much of a problem.
Jet stream. A high-velocity narrow stream of winds, usually found near the upper limit of the troposphere, which flows generally from west to east.
KIAS. Knots indicated airspeed.
 See also: Flight, Speed, Temperature, Direct, Wheel
  
|
RSS
