What in the World Winds
Learn about wind!
General Info
Wind is the movement of air caused by differences in air pressure
Differences in air pressure are caused by the uneven of Earth
Info on local winds
Caused by geographic features that produce temperature differences
SEA BREEZES
High pressure is created over the ocean during the day and low pressure over land due to uneven heating
Air moves from the ocean to the land creating a sea breeze LAND BREEZES
Low pressure occurs over the ocean during the night and high pressure over land due to the uneven heating of earth
- Air moves from the land to the ocean creating a land breeze
Wind!!
Global Winds
The combination of pressure belts and the Coriolis Effect cause global winds
These are Polar easterlies, Prevailing westerlies, and trade winds
All wind is caused by the uneven heating of Earth's surface, which sets convection currents in motion. Convection currents on a large scale cause global winds.
DOLDRUMS
•Located along the equator where no winds blow because the warm rising air creates and area of low pressure
Trade Winds, Prevailing Westerlies, Polar Easterlies
Trade winds
Winds that blow from 30° almost the equator
Called the trade winds because of their use by early sailors
Polar Easterlies
•Wind belts that extend from the poles to 60° latitude
•Formed from cold sinking air moving from the poles creating cold temperatures
Prevailing Westerlies
•Wind belts found between 30° and 60° latitude
•Flow towards the poles from carrying moist air over the United States
Website: http://www.phschool.com/atschool/phsciexp/active_art/global_winds/