Jet Streams

The Jet Stream flows in a more or less continuous band around the globe from west to east. It is caused by the changes in air temperature where the cold polar air moving towards the equator meets the warmer equatorial air moving north. It is an area of strong winds that are concentrated in a relatively narrow band in the upper troposphere of the middle latitudes and subtropical regions of the Northern and Southern Hemispheres. It is marked by a concentration of isotherms and strong vertical shear.
Concept Mapping Toolkit
Insitute for Human and Machine Cognition
The University of West Florida