Global Winds

1
Global Winds

• Winds that blow steadily from specific directions
  over long distances

2

• Temperatures near the poles are much lower than
  they are near the equator and so the movement of
  air between the equator and the poles produces
  global winds.

3
The Coriolis Effect

• Global winds do not follow a straight path
  because the earth rotates from west to east. The
  winds seem curved.

4

• In the Northern Hemisphere, global winds turn
  toward the right.
• In the Southern Hemisphere, winds curve toward
  the left.

5
Global Wind Belts

• Doldrums near the equator
• Horse latitudes warm air from the equator
  divides and flows north and south

6

• Trade winds Steady easterly winds
• Prevailing westerlies Winds that blow toward
  the poles are turned toward the east.

7

• Polar Easterlies Cold air near the poles sinks
  back towards the lower latitudes.