Global Climates
Weather is what happens over a short period;
Climate includes conditions in an area over a
long time.
tion in
the
Atmos
phere
Pressure
Belts
Rain
fall
The World’s
Deserts
The Great
Boreal Forests
Why are there no great
austral (southern) forests?
Directio
nRememb
er
Coriolis
sail to the New
World?
Figure 3.17
Right turn in the northern hemisphere, and left turn in the southern
hemisphere.
Figure 3.19
Coriolis causes surface currents to move at a 45 angle from the
wind.
Figure 3.21
Look at how high the pink (warm) is on the east coast and how low
pink is on the west coast. This warms poles and cools tropics. Studies
indicate that changes in circulation may cause climate change
Figure 3.24
The ocean has three main layers, the thin warm surface layer, the
intermediate layer (main thermocline), and cold deep bottom layer.
Figure 3.25
There are other currents in the ocean. The great conveyer belt.
Figure 3.26
Figure 3.27
Figure 3.28
Figure 3.29