Jet Stream. 250 mb isotach Main Upper Tropospheric Jets Closely Associated with the Tropopause.

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Presentation transcript:

Jet Stream

250 mb isotach

Main Upper Tropospheric Jets Closely Associated with the Tropopause

Tropopause

Tropopause Height u/~hakim/tropo/tropo.html u/~hakim/tropo/tropo.html

Subtropical Jet Stream

Subtropical Jet Stream Often Associated with a cloud band

Jet Stream’s Relationship to Temperature Can Be Shown through Thermal Wind Arguments

250 mb isotach

mb thickness-large thickness gradient and thus thermal wind near jet core

Or alternatively…

The Jet Stream Recall the horizontal temperature effects on the pressure: 500 mb 700 mb 850 mb WarmCold P surface

The Jet Stream Consider the balance of forces at each level: 500 mb 700 mb 850 mb WarmCold PsPs PGF CoCo

There are a variety of jet stream configurations that are well- known