- Wind is air that is moving parallel to the ground.
- Wind is caused by changes in air pressure.
- Wind is the movement of air from a place of high air pressure to a low pressure place
- Local winds are winds that blow over a small area of land.
- Local winds are created by unequal heating of earth's surface over a small area.
- Sea breezes blow in the day and from the sea to land
- Land breezed blow at night and from land to sea
- Global winds are winds that blow over a much larger area than local winds usually the world
- Convection currents are created by the temperature differences in the poles
- Winds at the poles blow towards the equator, high up in the atmosphere winds blow away from the poles the movements create convection currents
- Doldrums are near the equator
- Warm air rises causing a place of low pressure cool air also moves in but it warmed very quickly
- There is not a lot of horizontal motion so the winds are extremely weak or no winds at all
Jet streams, Polar easterlies, Prevailing westerlies
- Jet streams are are high speed winds up in the atmosphere
- The blow from west to east and can be up to 400 kph in speed they can also be very long
- Polar easterlies are cold air that start at the poles and blow down to lower latitudes
- The Coriolis effect pushes the cold air to the wast making polar easterlies later the polar easterlies meet the prevailing westerlies
- Prevailing westerlies are winds that blow to the poles the Coriolis effect turns them east
- The are called prevailing westerlies because they blow west to east