1. Global Circulation System 3D Model
Over the major parts of the Earth's surface there are large-scale wind circulations present. The global circulation can be described as the world-wide system of winds by which the transport of heat from tropical to polar latitudes is accomplished.
Items you will need:
Scissors
Red, light blue, dark blue
& green colouring pencils.
Glue stick
Highlighters
Pen

2. Global Circulation System 3D Model
Step One
Carefully cut around the different model parts.

3. Global Circulation System 3D Model
Step Two
Lightly fold the model in half to cut the semi-circular dotted line.

4. Global Circulation System 3D Model
Step Three
Fold the semi-circular arch up over the ‘Earth’ and glue the model’s based into your exercise book.

5. Global Circulation System 3D Model
Step Three
Next, glue together the ‘fingers’ of the smaller section onto the main section of your GCS model.

6. Global Circulation System 3D Model
Step Four
Once you have glued the two sections together, trim the parts that are sticking out from the arch.

7. Global Circulation System 3D Model
Step Five
Using a green (land) and blue (ocean) crayon, colour the Earth.
Be quick! Don’t take too long!

8. Global Circulation System 3D Model
Step Six
Now shade the arrows shown red. These are representing the movement of warm air (low pressure).
You will now need to include a key next to your diagram!

9. Global Circulation System 3D Model
Step Seven
Next, shade dark blue the arrows shown that represent the movement of cold dry air (high pressure) on your model.
Don’t forget to add this to your key!

10. Global Circulation System 3D Model
Step Eight
Now label the following lines of latitude.
Arctic Circle
Tropic of Cancer
Equator
Tropic of Capricorn
Antarctic Circle

11. Global Circulation System 3D Model
Polar Cell
Step Nine
Now you will need label the different cells of your model.
You could use a highlighter to make these labels stand out.
Ferrel Cell
Hadley Cell
Ferrel Cell
Polar Cell

12. Global Circulation System 3D Model Equatorial Insolation
Step Eleven
Draw a line with a Yellow pen or highlighter to represent the sun’s rays. As shown, have one ray leading to the Equator and another to the Antarctic Circle.
Once completed, label the two rays.
Equatorial Insolation
Polar Insolation

13. Global Circulation System 3D Model1
Step Thirteen
Now add the following numbers around the outside of your model. These will represent the different parts of your GCS model. 2 3 5 4 6

14. Global Circulation System 3D Model
Step Fourteen
Write the following information below your model to represent each stage of the GCS.
Air cools and sinks, creating a belt of high pressure and a cold, dry climate.
At about 60°N and S, cold polar air mixes with warmer air and rises, creating a belt of low pressure.
Cool air sinks, creating a belt of high pressure. As the sinks it becomes warmer and drier.
Warm air rises, creating a belt of low pressure. As the air rises, it cools. Clouds form and then release precipitation. Above, the air will eventually separate and move to higher latitudes.
Sun’s heat is concentrated.
Sun’s heat is spread out.
You could use a highlighter for key points/terms.

15. Global Circulation System 3D Model
Finished!
Congratulations you have completed your Global Circulation System model