Winds

By: Sean Hurley

General Information on Winds

Wind is the sideways movement of air. The air always moves from an area of high pressure to an area of low pressure. Wind is caused by differences in air pressure and how different places are heated by the sun. Warm air has less pressure than cooler air.

Information on Local Winds

Local winds are winds that blow over a short distance. A cool breeze in from the water over a beach is an example of a local wind. Local winds are created by the unequal heating of earth's surface within a small area. Sea breezes blow from an ocean, due to the movement of air from the ocean. Essentially, sea breezes blow from sea to land. Land breezes blow from a land over a lake or ocean due to the movement of air from the land. Basically, land breezes blow from land to sea.

Information on Global Winds

Global winds are winds that blow in specific directions over long distances. Global winds are created by the unequal heating of earth's surface but, with large convection currents. The Coriolis effect also helps create winds. Doldrums are areas of calm air this happens near the equator. The trade winds are winds that are in the northern hemisphere. Jet Streams are winds that are hundreds of kilometers wide and can go up to 400 kilometers per hour. Polar Easterlies are winds that blow from the poles and curve eastward.