3.3: Wind in the Atmosphere

1. Wind: The movement of air caused by differences in air pressure
   1. Creation
      1. Sun heats air, which rises
      2. Hot air moves near polar regions
      3. Hot air sinks
   2. Areas of High and Low
      1. Poles create high pressure air
      2. Equator creates low pressure air
   3. Global Winds
      1. Westerlies
      2. Polar Easterlies
      3. Trade Winds
   4. Jet Streams
      1. Help aircraft
2. Earth's Rotation
   1. Coriolis effect: An curving of the path due to Earth's rotation