Wonderful Winds!!!

What is wind?

Wind is movement of air caused by differences in air pressure.

What causes wind?

Wind is cause by differences in air pressure. When hot water molecules in the air collide with cold water molecules in the air, it causes wind!

Global Winds!!!!!!!

What is a global wind?

A global wind is a wind that blows steadily over long distances. They blow from the same direction every time.

How are global winds created?

Global winds are caused by the combination of pressure belts and the Coriolis Effect.

Horse latitudes! What are they?

Horse latitudes are lines of latitude that occurs at about 30° north and south of the equator where the winds are very weak. They are very calm areas with very little wind. It got it's name from early sailors. Because there is little wind, the sail boats would either not move, or move very little. Sadly, to fix this they would throw their horses overboard.

What is are jet streams?

The jet streams are narrow belts of high speed winds that blow in the upper troposphere and lower stratosphere. They separate warm air from cold air

Big image

What are trade winds?

Trade winds are winds that blow steadily towards the equator from the northeast in the northern hemisphere or the southeast in the southern hemisphere, especially at sea. Their are two belts of trade winds that encircle the Earth, blowing from the tropical high-pressure belts to the low-pressure area at the equator. They get their name from sailors. Sailors found certain steady wind areas and named them the trades.
Big image

What are prevailing westerlies?

They are wind belts found between 30* and 60* latitude. Prevailing westerlies flow towards the poles from west to east carrying moist air over the United States.
Big image

Local winds!!!

What are local winds?

The opposite of global winds! They are a wind that blows over small distances.

What causes local winds?

Local winds are caused by geographic features that produce temperature differences.

How do sea breezes blow?

Air moves from the ocean to the land creating a sea breeze.
Big image

How do land breezes blow?

Air moves from the land to the ocean creating a land breeze.

Big image

This shows how wind moves!

Big image