Wind is caused by a pressure difference in the atmosphere, resulting in air moving from an area of high pressure to low pressure. The air movement is felt as wind. Pressure differences are caused by areas in the atmosphere with either rising or sinking air.Continue Reading
Winds can be either small-or large-scale ones. Both are caused by pressure differences in the atmosphere, but the mechanisms that create these variations are not the same. Without the sinking and rising of air in the atmosphere, there would be no wind or any other type of weather.
Small scale winds, for example, can be caused by the sun heating up the ground near the ocean faster than the water itself. The hot ground heats up the air above it much faster, causing the air to rise. Air above the sea then rushes inland to equalize the new pressure difference, resulting in a sea breeze.
Winds on a large scale are caused by the differences in the angle of sun rays between the polar regions and the rest of the world. The sun heats up the polar areas much slower, causing a large-scale temperature difference across the globe. The difference in pressure results in a large movement of air particles.Learn more about Earth Science
Bulk flow is a movement of molecules from an area of high pressure to an area of low pressure. In cell biology, it refers to the transport of fluids or electrolytes between cells through openings, or pores, between the cells. Toilets and faucets employ mechanisms that utilize bulk flow, as well as the transport systems found in plants and animals.Full Answer >
The two units of air pressure used in meteorology are low pressure and high pressure. These two units of barometric pressure have a large influence with the weather on Earth.Full Answer >
Moving air is called wind. Winds are caused by differences in air pressure but can be modified by the Coriolis effect and friction. The movement of winds is generally horizontal, but it can take on a vertical component in a thunderstorm.Full Answer >
Wind energy is created when moving air causes a wind turbine to rotate, powering a motor that generates electricity. The energy of the wind itself derives from differential heating of the air by the sun and the rotation of the Earth, combined with landscape features which shape the air flow. In this way, wind power is an indirect form of solar power.Full Answer >