Single-Cell Model of the General Circulation:

If you assume:

  • earth is uniformly covered with water
  • sun is directly over equator
  • no rotation
  • you will end up with a single-cell pattern -->>
    • called the Hadley Cell
    • warm air rises at the equator, cold air sinks at the poles
  • This single-cell pattern is not observed.... what important process have we neglected?? ANSWER

  • Now, let's assume the earth can rotate..., what happens?