All About Winds

Global Winds and Local Winds

General info

The horizontal movement of air from an area of high pressure to an area or lower pressure is known as wind. Winds are created from differences in our air pressure and the unequal heating of earths surface.

Global Winds

Winds that blow steadily from specific directions over long distances are called Global winds. Global winds are created by unequal heating from the Earth's surface within a large area. The temperature differences between the equator and the poles create large convection currents in the atmosphere.

Jet Streams

The Jet Streams are a band of very strong winds located in the upper troposphere. They are hundreds of kilometers wide but, only a few kilometers deep. They usually blow from west to east at speeds of 200 to 400 kilometers per hour.

Local Winds

Winds that blow over short distances are called local winds. Local winds are created by unequal heating of the earths surface in a short area.

Sea breezes

Sea breezes are winds that blow from an ocean or a lake towards land. First the cool air rises from the ocean. Then the warmer air from land switches places with the cool air from the ocean. This process happens during the day time

Land breezes

Land breezes are winds that blow from land towards a body of water. First the warmer air from the ocean moves towards land. Then the cool air on land switches places with the warm air from the ocean. This process happens during night time.