In the tropics, near the equator, warm air rises. When it gets about 10-15 km (6-9 miles) above the Earth surface it starts to flow away from the equator and towards the poles. Air that rose just north of the equator flows north. Air that rose just south of the equator flows south.
Why does air rise at the equator? – Study.com
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What happens to the air at the equator?
Consequently, the rising warm air at the equator becomes even less dense as it rises and its pressure decreases. An area of low pressure, therefore, exists over the equator. Warm air rises until it reaches a certain height at which it starts to spill over into surrounding areas. At the poles, the cold dense air sinks.
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What happens as warm air rises and cools over the equator?
So the air rising at the equator is warm and full of water vapor; as it rises into the upper atmosphere it cools, and the cool air can no longer hold as much water vapor, so the water condenses and forms rain.
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Does warm air move towards the equator?
The warmer air at the equator is less dense than the cold air of the poles. Thus, the air from the poles tends to flow toward the equator (toward the area of lower density).
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When warm air rises at the equator what happens to the water?
Like the heated air in a hot-air balloon, heated water expands. Solar heat absorbed at the equator causes water to expand. Such heated water raises the normal level of the sea surface, and such changed ocean topography can be measured.
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What is the air like at the equator?
Equatorial regions is hotter and the air above expands, becomes less dense and rises. This produces a low pressure belt at this latitude. 1. Generally, the equatorial region has a warm, rainy climate.
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What happens at the equator warm air?
As air is warmed at the equator it becomes less dense and rises, while at the poles the cold air is denser and sinks. If the Earth was non-rotating, the warm air rising at the equator would reach the upper atmosphere and begin moving horizontally towards the poles.
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Why does the air rise straight up at the equator?
Warm air rises from the equator because it is heated strongly by the sun. The rising air creates low pressure at the Equator. As the air rises, it cools, and water vapor condenses, forming clouds.
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What happens to moist air at the equator?
At the equator, warm, moist air rises, cools and becomes rain.; whereas at 30 degrees north and south latitude, dry air sinks to Earth’s surface. Locations at the equator are covered in ocean water, and are very warm due to the direct angle of the sun.
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Does heated air move towards the equator?
The warmer air at the equator is less dense than the cold air of the poles. Thus, the air from the poles tends to flow toward the equator (toward the area of lower density).
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Does cold air move towards the equator?
The overall effect of the Polar cell is to move cold air towards the equator. At the poles (i.e. 90° of latitude) the cold air sinks. It then moves towards the equator.
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Where does the heated air from the equator move?
The uneven distribution of heat leads to convection currents that “try” to equalize heat everywhere. Simply, heated air at the equator rises up, and spreads north and south towards the poles. There it gradually cools, sinks down, and then flows back across the Earth surface to the equator. There the cycle is repeated.
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What happens to the air at the equator?
Consequently, the rising warm air at the equator becomes even less dense as it rises and its pressure decreases. An area of low pressure, therefore, exists over the equator. Warm air rises until it reaches a certain height at which it starts to spill over into surrounding areas. At the poles, the cold dense air sinks.
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What happens to the rising warm air at the equator?
In the tropics, near the equator, warm air rises. When it gets about 10-15 km (6-9 miles) above the Earth surface it starts to flow away from the equator and towards the poles. Air that rose just north of the equator flows north. Air that rose just south of the equator flows south.
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When warm air rises and cools what happens?
Hot air rises. As air rises, air pressure at the surface is lowered. Rising air expands and cools (adiabatic cooling: that is, it cools due to change in volume as opposed to adding or taking away of heat). The result is condensation/precipitation.
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What process cools air as it rises above the equator?
Convection is this process where the warm air rises and cooler air sinks. At the equatorial region, you can find the tropical rain forests. The constant heat causes the air to rise. As air rises, it cools, condenses and forms clouds.
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What happens to air when it is heated at the equator?
At the equator, the ground is intensely heated by the sun. This causes the air to rise which creates a low-pressure zone on the Earth’s surface. As the air rises, it cools and forms thick cumulonimbus (storm) clouds.
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What happens to water vapor in the warm air as it rises?
Air warmed by ocean currents picks up a lot of moisture. As the heated air rises, it expands, which is measured at the surface as low air pressure. Expanding air cools, which forces it to lose its moisture as rain or snow. The opposite is true for sinking air.
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