It causes air movements in the troposphere: Near the equator, where the sun's irradiation heats the strongest, air moves upwards (causing low pressure and tropical rainfalls there), then away from the equator northwards and southwards, then comes down again (causing high pressure and dry climate in latitudes such as in the Sahara desert), and then moves back towards the equator from the high pressure latitudes towards the equatorial low pressure latitudes, causing winds from north to south in the north of the equator and winds from south to north in the south of the equator on the earth's surface. There are further analogous planetary air rolls towards the north and the south: at the poles cold air sinks downwards, and there is an upward air movement around 60° latitude. All of these wind patterns shift in position along with the seasonal change of the sun's position.
Uneven heating of a region can cause a pressure differential, as hot air is less dense than cold air. This can result in pressure fronts you commonly see referred to as high and low. This can push air in various directions and cause different weather conditions.
Wind is caused by unequal heating of the atmosphere by the sun. Most differences in air pressure are caused by unequal heating of the atmosphere. As you learned in the previous section, convection currents from when an area of Earth's surface is heated by sun's rays. Air over the heated surface expands and becomes less dense. As the air gets less dens, it's a pressure decreases. If a nearby are is not heated as much, the air above is the less heated area will be cooler and denser. The cool and dense air has a higher pressure so it flows underneath the less dense air.
The unequal temperatures create currents of rising warm air, and descending cold. All of which creates flowing currents of air that are the winds.
Wind can result from a number of atmospheric events. The man cause of wind if the uneven heating and cooling of the earths surface due to the atmosphere, sun, and ocean.
Earth's rotation and unequal heating of earth's surface
Uneven heating causes uneven temperatures (typically, not always). This means air molecules exert different pressures (remember, temperature is a measure of how fast molecules move randomly) at different locations. It is the difference in pressures that drive the winds (as well as the Coriolis force due to Earth's spin).
Weather processes such as wind, clouds, and precipitation are all the result of the atmosphere responding to uneven heating of the Earth by the Sun.
local winds-are winds that blow over short distances caused by unequal heating of the earths surface in a small area. global winds-are winds that blow around the earth from the north pole to the south pole.
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hot air causes a low pressure system, cold air then rushes towards this low pressure system to equalise the earths atmosphere. the unequal heating causes unequal pressure systems and air moves to and from those pressure systems.
hot air causes a low pressure system, cold air then rushes towards this low pressure system to equalise the earths atmosphere. the unequal heating causes unequal pressure systems and air moves to and from those pressure systems.
Unequal heating of the Earth's surface.
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wind
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Wind and weather.
It causes wind, with help from the moon's gravitational pull it causes ocean currents and it also helps with the seasons and weather.Windsconvection currentsUnequal heating of the earth's surface results in wind. That is what happens, if that's your question.
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Wind can result from a number of atmospheric events. The man cause of wind if the uneven heating and cooling of the earths surface due to the atmosphere, sun, and ocean.
Wind is caused by the uneven heating of the atmosphere. When an area has warmer air than surrounding areas, the air rises which creates a region of low pressure. The areas around it have higher pressure, and therefore air moves from there to the low pressure area. The movement of this air is called wind.