How does temperature affect air movement

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How does temperature affect air movement

  1. 1. How Does Temperature Affect Air Movement?
  2. 2. How is Air Heated? <ul><li>Sun heats Earth’s surfaces </li></ul><ul><li>Surfaces heat air </li></ul><ul><li>Uneven heating due to angle of sun’s rays </li></ul><ul><li>Different surfaces absorb heat differently </li></ul>
  3. 3. Warm Air Vs. Cold Air <ul><li>Warm Air </li></ul>Cold Air Which is more densely packed?
  4. 4. Warm Air Vs. Cold Air <ul><li>Which, do you think, has greater mass ? </li></ul>
  5. 5. How Does Temperature Affect Air Movement? <ul><li>Cold air falls </li></ul>Warm air rises
  6. 6. Air Pressure <ul><li>Pressure: amount anything presses down </li></ul><ul><li>Air pressure : amount air presses down on us </li></ul>
  7. 7. So… How Does Temperature Affect Air Movement?
  8. 8. How Do Meteorologists Measure Air Pressure and Wind? <ul><li>Barometers </li></ul><ul><li>Greater pressure….Higher reading </li></ul>
  9. 9. How Meteorologists Measure Wind

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