1. 3-1
Weather and Climate

2. Weather
Short term changes in the air for a given time and place

3. Climate
A region’s average weather of a long period of time

5. Sun and Location Earth’s tilt – creates seasons
Tilted towards Sun – Summer
Away from Sun - Winter

7. Sun is more concentrated near equator

8. Cold air sinks
Warm air rises
WIND!

9. Winds
Prevailing winds – winds that are blown in the same direction over large areas

11. Earth’s rotation causes winds to curve

12. Ocean Currents Large streams of surface water Move heat around
Affect air temperatures

13. Gulf Stream
North Atlantic Drift

14. Large Bodies of Water Make land temperatures for mild
Water heats and cools slower that land

15. Storms Air mass – large body of air
Front – place where to air masses meet

17. Fronts create storms

18. Mountains Rain shadow Cooling moist air on one side
Warming dry air on one side