What is Wind?

What I learned about wind!

What is Wind?

Wind is moving air and is caused by differences in air pressure within our atmosphere.

Local Winds!

Local winds are winds that blow over a short distance and can blow in any direction. They are 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.

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Land Brezzes

Low pressure occurs over the ocean during the night and high pressure over land due to

the uneven heating of earth. This causes wind to move from the land to the ocean creating a land breeze.

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Global winds!!

The combination of pressure belts and the Coriolis Effect cause global winds. These are polar easterlies, prevailing westerlies, and trade winds.

Doldrums.

Located along the equator where no winds blow because the warm rising air creates and area of low pressure.

Jet streams.

The jet streams are narrow belts of high speed winds that blow in the upper troposphere

and lower stratosphere. Separates warm air from cold air.

Prevailing Westerlies

Wind belts found between 30° and 60° latitude. Flow towards the poles from west to east carrying moist air over the United States.

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Trade Winds.

Winds that blow from 30° almost to the equator. Called the trade winds because of their use by early sailors.