Today’s Objective:
What Causes Global Winds?
Do Now:
What does it mean if
something is “global”?
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Understanding Global Winds: Causes and Effects, Exercises of Chemistry
The causes of global winds, including unequal heating of the earth's surface and the coriolis effect. It also introduces the four major wind belts and their respective wind patterns in the northern and southern hemispheres.
What you will learn
- What are the four major wind belts and where are they located?
- How does the Coriolis Effect influence the direction and path of global winds?
- What causes global winds?
Typology: Exercises
2017/2018
1 / 9
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Today’s Objective:
What Causes Global Winds?
Do Now:
What does it mean if
something is “global”?
Global Winds
Are caused by unequal heating of the
Earth’s surface
These winds blow from a specific direction
Wind is named based on the
direction it comes from
(not going to)
Earth’s has four major wind belts
Doldrums – at the equator (calm)
Trade Winds – 30 degrees north and south (few
clouds and little rain fall)
Prevailing Westerlies – 40 – 60 degrees north
and south (Because of the Coriolis effect winds
seem to move from west to east.)
Polar Easterlies - 60 to 90 degrees north and
south (Because of the Coriolis effect winds
seem to move from east to west.)
*DO NOT COPY *
Coriolis Effect
The Coriolis Effect
Caused by the rotation of the Earth on its
axis (rotation)
Responsible for
curving the path of air
and ocean currents
across the Earth