global atmospheric circulation

• Global atmospheric circulation


  Interconnected circular air cells
• Global atmospheric circulation


  • Involves high pressure, rising warm air, surface winds moving from high to low pressure, transferring heat and moisture
  • Winds curve due to Earth's rotation and change seasonally due to tilt and rotation of Earth
• Global atmospheric circulation


  1. Surface winds move from high to low pressure

  2. Transferring heat and moisture from one area to another

  3. Winds curve due to Earth's rotation

  4. Change seasonally due to tilt and rotation of Earth
• Atmosphere becomes thin at higher altitudes
• Jet streams occur at high altitudes
• Thunderstorms occur at high altitudes
• Hadley cells, polar cells, and Ferrel cells are part of global atmospheric circulation
• Tropical storms called hurricanes and typhoons form south of the equator
• Global atmospheric circulation


  Drives the world's weather
• UK weather


  Cloudy and wet because cold polar air meets warm subtropical air. the surface winds bring warm and wet weather as rising air cools and condenses forming clouds and rain
• Desert weather


  Hot and dry because of sinking air and high pressure meaning little rain, hot day and very cold nights
• Equatorial weather


  Hot and sweaty because of low pressure and rising air. hot and humid air rises, cools and condenses, causing heavy rain
• Tropical rainforests are found where the sun is directly overhead