1. Winds

2. A wind is the horizontal movement of air from an area of high pressure to an area of low pressure.
All winds are caused by differences in air pressure.

3. anemometer – measures wind speed
wind-chill factor – the increased cooling that a wind can cause

4. local winds – winds that blow over short distances
Local winds are caused by unequal heating of Earth’s surface within a small area.
sea breeze – a wind that blows from an ocean or lake onto land
land breeze – the flow of air from land to a body of water

5. Monsoons
monsoons – sea and land breezes over a large region that change direction with the seasons

6. Angle of the Sun’s Rays
Energy from the sun strikes Earth most directly near the equator. Near the poles, the same amount of energy is spread out over a larger area.

7. Global Winds
global winds – winds that blow steadily from specific directions over long distances
The movement of air between the equator and the poles produces global winds.
Coriolis Effect – the way Earth’s rotation makes winds curve

8. Coriolis Effect
As Earth rotates, the Coriolis effect turns winds in the Northern Hemisphere toward the right.

9. Global Wind Belts The major global wind belts are: the trade winds
the prevailing westerlies
the polar easterlies
latitude – the distance from the equator measured in degrees

10. Global Wind Belts
A series of wind belts circles Earth. Between the wind belts are calm areas where air is rising or falling.

11. Jet Streams
The jet streams are high-speed bands of winds occurring at the top of the troposphere.

12. Prevailing westerlies
Graphic Organizer
include
two types
three types
Earth’s winds
Local winds
Trade winds
Global winds
Prevailing westerlies
Polar easterlies
Sea breeze
Land breeze

13. Wind Power
Wind Power has been used for centuries for such things as sailing ships, pumping water, and generating electricity.
Modern windmills and wind turbines are two basic designs that produce energy.
Wind farms – large numbers of turbines clustered together