1. 15.3 Global Winds and Local Winds
Objectives:
Explain the relationship between air pressure and wind direction.
Describe global wind patterns.
Explain the causes of local wind patterns.
15.3 Global Winds and Local Winds
Objectives:
Explain the relationship between _____________________ and wind direction.
Describe ___________________ wind patterns.
Explain the ______________ of __________________ wind patterns.

2. Why Air Moves
Wind- movement of air is caused by __________________ _________________.
Greater pressure difference= ___________________________

3. Air _____________________and Sinks at the Poles
Differences in air pressure are generally caused by ______________________of the Earth.
Equator
Receives more direct ________________
Air is warmer and ___________dense
Warm air rises and creates ________________ ____________________
Warm air flows to ___________________________

4. Air Rises at the Equator and Air Sinks _____________, cont’d
Poles
Air is cooler and ________________
Cold air sinks
Creates ____________________area
Cold air flows toward ____________
AIR Moves from _____________!!!

5. Pressure Belts Are Found Every 30 Degrees
_________________- bands of high pressure and low pressure found every _______________________.
Sinking air causes _______________ _______________________because sinking air presses down on the air beneath it.

6. The Coriolis Effect
Apparent _____________ of the path of winds and ocean currents due to the Earth’s _________________.
North- winds going north curve ________
___________- winds going south curve west
Connection??

7. Global Winds Patterns of air circulation
Named after the direction from which ________________
Major global wind systems
_________________

8. Polar Easterlies Poles to ___________________ in both hemispheres
Cold, _________ air moves from poles to 60
Effect?
Can bring cold air to ________making ________________________weather

9. Prevailing Westerlies
Between ___________________latitude in both hemispheres
Flow from ____________________
Effect?
Can bring moist air to US making ___________________________________

10. Trade Winds 30 latitude almost to equator in both hemispheres
Due to ____________________- curve to west in N. Hemisphere and east in S. Hemisphere
Effect?
Traders used winds to move from Europe to _________________________.

11. Doldrums:_______________________________________________________________

12. The Horse Latitudes 30 north and south latitude
Very ____________________

13. __________________________: Atmospheric Conveyor Belts
Narrow belts of __________________ winds
Blow in the upper ______________ and lower ________________
Effect?
Can affect movement of storms and _______________________