Poleward Flux of Momentum
				q In the tropical easterlies, eastward angular momentum is transferred from Earth to the atmosphere via frictional forces and mountain torque. q This westerly angular momentum is transported upward and then poleward inb the Hadley Cell. q Eddies then transport angular momentum poleward and downward into mid-latitude westerlies. q In the mid-latitude, the westerly momentum is returned to the Earth.