By: Christian Amaral
General Info About Wind
Definition of Wind- Wind is the sideways movement of air. The air always moves from an area of high pressure to an area of low pressure.
What Causes Wind- Winds are caused by differences in air pressure.
Local Winds: Local winds are winds that blow over a short distance. Local Winds are created by unequal heating of Earth's surface within a small area. Sea Breezes: Sea Breezes are a type of Local Winds. A sea breeze blows from the sea to the land. This usually happens during the day. Land Breezes: Land Breezes are a type of local winds. Land breezes blow from the land to the ocean. This type of wind blows usually at night.
Global Winds: Global Winds are winds that travel over a large area like the globe. Global Winds are created by unequal heating of Earth's surface over a large area. Also the Global Winds also have a large convection current that occurs between the equator and the poles. At the equator warm air rises and cold air sinks but at the poles colder air has a high air pressure and cool air has a low air pressure. Therefore there is a giant convection current. One of the Global Winds are called the Doldrums. The doldrums are at the equator and the latitude line is 0 degrees. The Doldrums are very weak winds and aren't strong at all. There are three more winds that I would like to talk about, the trade winds, prevailing westerlies and the Jet Streams. Let's get started with the Jet Streams. Jet Streams are a band of very strong winds in the upper troposphere. Airplanes fly up here to save fuel. Now let's move on to the Prevailing Westerlies. The prevailing Westerlies lie between 30 degrees and 60 degrees north and south. They blow from the west. And the last one are the trade winds. These winds lie between 0 degrees and 30 degrees and are very strong. Sailors use these winds to help them move their cargo to other countries to trade.