1. Chapter 12 - Meteorology

2. The Causes of Weather
Meteorology is the study of atmospheric conditions
Weather is the current state of the atmosphere
Short-term variations
Climate are long term variations
Normally averaged over 30 years

3. A Question of Balance The sun heats the surface of the Earth
It heats some parts more directly then others
The tropics are warmer and the poles are colder
Because of the angle that the sun’s rays hit it

5. Balancing the Budget
Even though the tropics receive more direct sunlight, they still have maintain a fairly constant temp
This is because the heat is distributed around the world
The continual motion of air (wind) allows the heat to be redistributed