The Tri-Cellular Model (Grade 11 NSC Matric Geography): Flashcards
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Tri-cellular model
Tri-cellular model
Shows 3 main circulation cells in each hemisphere
Three circulation cells
Three circulation cells
Hadley, Ferrel, Polar
Hadley cell latitude range
Hadley cell latitude range
Equator to 30° latitude
Ferrel cell latitude range
Ferrel cell latitude range
30° to 60° latitude
Polar cell latitude range
Polar cell latitude range
60° latitude to poles
ITCZ (Intertropical Convergence Zone)
ITCZ (Intertropical Convergence Zone)
Where two Hadley cells meet at equator
Air masses
Air masses
Large volumes of air with similar characteristics
Front (in tri-cellular model)
Front (in tri-cellular model)
Boundary where different air masses meet
Weather at 30° latitude
Weather at 30° latitude
High pressure and dry conditions (deserts)
Purpose of tri-cellular model
Purpose of tri-cellular model
Transports heat from equator to poles