Notes: Global Winds
Air Movement / Wind is the ______movement of ______caused by differences in air ______.The air moves from ______Air Pressure to ______Air Pressure.
The ______the difference, the ______ the wind moves.
Cause of the differences in Air Pressure / Differences in Air Pressure are caused by the ______ heating of Earth.
Uneven heating produces pressure belts which occur every ______latitude.
Pressure Belts / Equators: As warm air ______at the equator and moves toward the poles, it ______.
At 30° north and south: As warm air cools, some of the air ______around 30° north and south of the equator.
Poles: Cold air ______and moves towards the equator.
At 60° north and south: Around 60° north and south, the air begins to heat up and ______.
Global Winds / Causes: The combination of pressure belts and the Coriolis Effect cause global winds
Global Winds: These are polar easterlies, prevailing westerlies, trade winds, and doldrums.
Doldrums / At the equator 0 °
Located along the ______where no winds blow because the warm rising air creates an area of ______pressure.
Trade Winds or Tropical Easterlies
/ Between 0 ° N – 30 ° N and 0 ° S - 30 ° S
Winds that blow from 30° almost to the ______.
Called the trade winds because of their use by early sailors.
Horse Latitudes –
Occur at about 30° north and south of the equator where the winds are very ______.
Most deserts on the Earth are located here because of the ______air.
Prevailing Westerlies
/ Between 30 ° – 60 ° N and 30 ° - 60 ° S
Wind belts found between 30° and 60° ______.
Winds flow towards the poles from west to east carrying ______air over the United States
Polar Easterlies
/ Between 60 ° – 90 ° N and 60 ° - 90 ° S
Wind belts that extend from the ______to 60° latitude.
Formed from ______sinking air moving from the poles creating cold temperatures.
Jet Stream / The jet streams are bands of high-speed ______about 10 kilometers above Earth’s surface.
Separates warm air from cold air.