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Transcript of Energy Transfers
Location on earth - north and south of the equator
Ranges from 0° at equator to 90° at the Poles
90° N and 90° S
Winds blow from ......
At the equator, the warm air rises, creating a zone of low pressure.
The warm air spreads outwards towards the poles.
The Coriolis Effect
Wind is moving air
Difference in temperature cause wind movement
Air moving from high pressure to low pressure
Pressure is the force of air on the earth's surface
is the result of rising air, which is warm.
air rises as it is light.
is the result of decending air, which is cold.
air falls as it is heavy.
in air pressure caused by unequal heating of the earth.
winds blow from the equator.
winds blow from high latitudes.
high pressure to low pressure areas.
A.k.a General Circulation
As is nears the poles the air
- becomes heavier and sinks earthwards.
This occurs about
30° north and south
of the equator.
Sinking air = areas of
This air blows out from these areas of high pressure.
Some blows back towards equator (
They are pulled back by
vactating warm air
, while some travels polewards.
Air moving from low latitudes = generally warmer.
warm air meets cold polar air.
These areas were the masses meet form
and are areas of
(90°) the extremely cold air presses down to create a
zone of high pressure.
This process continues over and over creating
(circular) - this keeps the atmosphere in constant motion.
Global winds are deflected when the earth rotates.
The earth rotates on its axis from west to east.
The result of this is that the winds are deflected:
1. To the
of its direction of motion in the Northern Hemisphere.
2. To the
of its direction of motion in the Southern Hemisphere.
Winds blow from east and west and not just north and south, this is due to the . . .
Zones seperating wind belts
Area near the
Trade winds die out here
Means 'stagnation or listlessness'
Named by English sailors who were trapped by the lack of 'trade' winds to carry them onto the next port.
Areas of still, dry weather
30° North and South of the equator
Ships tried to avoid this zone
Where did this name come from?
Horses being transported
Sailors - threw cargo over
60° North and South of equator
Varies with seasons
' of water
This movement is caused by the
earths rotation; winds; temperature
in the ocean
From the equator
North Atlantic Drift
Also known as the
Begins in the Caribbean
Flows past the West of Ireland -
increasing the temperature
Keeps coasts in Western Europe ice-free
From areas of
along NE coast of N.America
Freezes water -
Effects of Ocean Current
Good fishing grounds
Creation of icebergs
Difficult sailing conditions
Question 1, 2 and 3