Αποτελέσματα Αναζήτησης
2 Φεβ 2023 · Global winds are winds that develop in belts distributed all around the world. Like local winds, the leading cause of global winds is unequal heating of the atmosphere, causing a difference in air pressure.
Winds are commonly classified by their spatial scale, their speed and direction, the forces that cause them, the regions in which they occur, and their effect. Winds have various defining aspects such as velocity (wind speed), the density of the gases involved, and energy content or wind energy.
In fluid dynamics, a wind wave, or wind-generated water wave, is a surface wave that occurs on the free surface of bodies of water as a result of the wind blowing over the water's surface. The contact distance in the direction of the wind is known as the fetch .
27 Ιαν 2023 · In simple terms, wind is the movement of air. This movement is caused by pressure differences, which in turn were caused by temperature differences. In other words, it all starts with the sun. As the sun warms the earth’s surface, the atmosphere warms too.
In meteorology, winds are defined based on their strength and direction. Short and violent high-speed winds are known as gusts while strong winds over extended durations are known as squalls. Highly violent and longer-duration winds are linked to various names such as storm, gale, and hurricane.
Landforms, processes, and impacts of wind are called Aeolian landforms, such as sand dunes and Loess deposits, which are deposits of silt. Differences in atmospheric pressure generate winds. At the Equator, the sun warms the water and land more than it does the rest of the globe.
Earth’s atmosphere is a thin blanket of gases and tiny particles — together called air. We are most aware of air when it moves and creates wind. All living things need some of the gases in air for life support. Without an atmosphere, Earth would likely be just another lifeless rock.
