Global Circulation.

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Presentation transcript:

Global Circulation

Global wind field - January

Global wind field - July

Pressure surfaces

Polar Cell Ferrel Cell Hadley Cell ITCZ Early model of global circulation. NB There is little evidence for the Polar and Ferrel cells in the real atmosphere

Hadley cell

Pressure driven surface winds

Global Circulation

ITCZ (Inter Tropical Convergence Zone)

Tropical Wet Climate

Desert Climate

Tropical Wet and Dry

Rossby Waves

Tropopause variation with latitude

Jet stream – wind field and temperatures

Isotachs and isotherms

Current circulation model

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