winds Flashcards
where are tradewinds located?
0–>30
what direction do tradewinds blow?
southwest (sw)
what are significances of trade winds?
Sailors use these for trades
where are Westerlies located?
30 to 60
what direction do westerlies blow?
north east (ne)
what is the significance of the westerlies?
Dominant wind on Vancouver Island, and brings water to use
where are polar Easterlies located?
60 to 90
what direction do polar easterlies blow?
southwest (sw)
what is the significance of polar easterlies?
bring cold air masses, which cause freezing and winter storms in winter
Warm air near the Earth surface
rises
As the air cools off in the upper atmosphere
it sinks
Together the movement of air creates a cycling of the fluid air. It is called:
A convection current
why is understanding convection currents important?
they caused global wind systems and ones in the mantle move the earth plates, causing earthquakes and volcanos
What are the two factors that generate global winds?
convection currents and coriolis effect
What causes convection currents?
uneven heating of the Earth’s surface
