The wind

19/09/2020

The wind originates from pressure differences that tend to balance out, from high to low pressures.These differences are produced by the uneven heating of the surface, when the air heats up, rises and to occupy that vacuum the circulating air moves towards the area where the depression has occurred.There are several factors that influence the wind by modifying its path, for example, the rotation of the Earth (Coriolis force), friction, gravity, centrifugal force, etc.The wind is the resulting vector of three components, the longitudinal, lateral and vertical, considering that it is a force that moves in a space in three dimensions.1. Surface windThe lowest part of the atmosphere near the ground is defined as a limit, since the surface of the Earth has different orography and roughness and this causes disturbances in the movement of the wind. Depending on the type of surface, the boundary layer will be thinner or thicker.As we ascend from the surface, the effect that is produced by the friction of the wind with the surface diminishes until it disappears.2. Sea and land breezeDuring the day, the land heats up faster than the water, the hot air mass rises and the colder mass that is over the sea moves towards the land area replacing the warm mass.3. Valley and mountain breezeDuring the day, the air in contact with the valley walls heats up and is forced to ascend through the Del Valle orography. When it reaches higher levels it cools down and descends in the central area of ​​the valley. This type of wind is known as anabatic wind.