Global wind patterns and pressure belts


The surface winds of each hemisphere are divide into  three wind belts: (a) polar easterlies- from 600to 900 latitude; (b) westerlies- from 300 to 600 latitude; and (c) trade winds- from 00 to 300 latitude.
The earth’s atmosphere is put into motion because of the different heating of the earth surface. Tropics receive more heat than the poles. Exfess heat in the tropics is transported to higher latitude by winds and ocean currents. High and low pressure centers low pressure centers exits In approximately every 300 latitude.

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