1. Global Winds
What roles do composition, structure, and properties play in our atmosphere?

2. Coriolis Effect
Because the Earth rotates, and consists of a mixture of land and sea, the Coriolis Effect exists
The Coriolis Effect is the movement of particles (such as air) to the right in the Northern Hemisphere
How about the South?
They move to the left

3. Coriolis Effect

4. Global Winds Global wind patterns are caused by: Coriolis Effect
The land and sea makeup of Earth

5. 30 60 90
Warm Moist Air Rises

6. 30 60 90
Warm Moist Air Rises
Cool Dry Air Sinks

7. 90 30 60 Cold Moist Air Rises Cool Dry Air Sinks Warm Moist Air Rises60 90
Warm Moist Air Rises
Cool Dry Air Sinks
Cold Moist Air Rises
Cold Moist Air Rises

8. 90 30 60 Cold Moist Air Rises Cool Dry Air Sinks Warm Moist Air Rises60 90
Warm Moist Air Rises
Cool Dry Air Sinks
Very Cold Air Sinks
Cold Moist Air Rises
Cold Moist Air Rises
Very Cold Air Sinks

9. L H 90 30 60 Cold Moist Air Rises Cool Dry Air Sinks60 90
Warm Moist Air Rises
Cool Dry Air Sinks
Very Cold Air Sinks
Cold Moist Air Rises
Cold Moist Air Rises
Very Cold Air Sinks

10. Wind Moves from HIGH to LOW30 60 90
Wind Moves from HIGH to LOW

11. Objects are deflected to the RIGHT in the Northern Hemisphere30 60 90
And to the LEFT in the Southern Hemisphere

13. Wind gets its name from the direction it is blowing FROM!
Remember!
Wind gets its name from the direction it is blowing FROM!

14. Northern Wind Patterns
Polar Easterlies
90 – 60 latitude from the east
Prevailing Westerlies
60 – 30 latitude from the west
Trade winds
30 – 0 latitude from the East

15. Latitude Nicknames Horse Latitudes
Named because the boats stalled and the horses had to go!
Doldrums / Intertropical Convergence Zone (ITCZ)
Equator
Trade winds converge from north and south
Named because boats also got stranded here

17. Jet Streams
Jet Streams form at latitudes where wind systems come together
High speed westerly winds form high above the surface