1. Global Winds
Eric Angat
Teacher

2. How do I describe Global Winds?
Essential Question
How do I describe Global Winds?

3. 1. What are the three types of Global Winds?
Polar Easterlies
(60-90 degrees)
Westerlies
(30-60 degrees)
Trade winds
(0-30 degrees)

4. Intertropical Convergence Zone or ITCZ
2. Where do Trade winds or tropical
easterlies meet?
Trade wind degrees
Intertropical Convergence Zone or ITCZ
The easterly trade winds of both hemispheres converge at an area near the equator called the "Intertropical
The global wind pattern is also known as the "general circulation" and the surface winds of each hemisphere are divided into three wind belts:
Polar Easterlies: From degrees latitude.
Prevailing Westerlies: From degrees latitude (aka Westerlies).
Tropical Easterlies: From 0-30 degrees latitude (aka Trade Winds).
Convergence Zone (ITCZ)", producing a narrow band of clouds and thunderstorms that encircle portions of the globe.
Trade wind degrees

5. Horse latitude –mild wind Doldrums –mild wind

6. Climate System Why are greenhouse gases important for our survival?
Why are we experiencing greenhouse problems?
How is heat moved around the atmosphere?
How is heat moved in the ocean and seas?

7. Climate System

8. Warm air rises and cool air sinks
Climate System
Why are greenhouse gases important for our survival?
4. Why are we experiencing greenhouse problems?
5.How is heat moved around the atmosphere?
6.How is heat moved in the ocean and seas?
Greenhouse gases maintains the Earth’s warmth.
Too much greenhouse gases causes Global warming. Like wearing winter jackets during spring.
Warm air rises and cool air sinks
Cold water sinks and warm water rises. This process influences our weather and results to upwelling or mixing of nutrients in the ocean.

9. Coriolis Effect
7. How do storms spin in the northern hemisphere and southern hemisphere?
8. Which spins faster the equator or the poles?
9. Coriolis effect deflects wind to the _____ in the Northern hemisphere and to the _____ in the southern hemisphere.

10. Coriolis Effect
Coriolis effect:

11. The equator spins faster than the poles.
Coriolis Effect
7. How do storms spin in the Northern hemisphere and Southern hemisphere?
8. Which spins faster the equator or the poles?
9. Coriolis effect deflects wind to the ______________ in the Northern hemisphere and to the _____________ in the southern hemisphere.
Storms in the Northern hemisphere spins counterclockwise while in the Southern hemisphere they spin clockwise.
The equator spins faster than the poles.
Right
Left

12. When does the jet stream meander? 12. How does wind move?
What is jet stream?
When does the jet stream
meander?
12. How does wind move?
13.How do the Hadley cells and Polar cells differ?

13. Jet Stream
Jet Stream:

14. Jet Stream What is jet stream? When does the jet stream meander?
12. How does wind move?
13.How do the Hadley cells and Polar cells differ?
Narrow band of fast moving air about 8 miles above.
Jet Stream meanders when the wind is weak.
From high pressure to low pressure
Hadley cells are circulating warm air while polar cells are circulating cold air.

15. 14. What direction does wind blow?
wind blows from areas of high pressure, towards areas of lower pressure.
High Pressure
Low Pressure

16. Cold air mass Cold air mass Warm air mass
(High Pressure)
Warm air mass
(Low Pressure)

17. 15. What are Jet streams? where they are coming from.
Jet Stream are generally westerly winds in a relatively narrow stream in the upper troposphere.
Remember: Winds are described
where they are coming from.

18. West
Jet streams

19. 16. Do planes fly in the Jet stream?
Yes, the jet stream is now used to save time when traveling with it if the jet stream is going against the plane they avoid it as it would slow the plane down.
West