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Generally the poles are cold places, receiving Sunlight at a low angle or no Sun at all. This means the air above the poles tends to be cooler than the rest of the planet. Cold air is dense so the pressure of the air at the poles tends to be higher than the rest of the planet. Thus air (cold air) tends to flow away from the polar regions along the Earth's surface to be replaced by light warmer air flowing into the poles at a higher level (this air then cools). There is therefore a general flow of warm air north and south towards the poles from the equator and a flow of cold air from the poles towards the equator. This flow of air spreads out the heat from the Sun, warming the poles and cooling the tropics. In detail this overall flow is restricted by the thickness of Earth's atmosphere and several flow cells form to complete the chain causing Earth's climatic zones.
What else can I help you with?
What are the pressure conditions of the air above the equator?
Air pressure depends mainly on altitude - how high you are above sea level. The lattitude doesn't make much difference.
Why is the air pressure the poles higher than the air pressure at the equator?
The reason the tropopause is lower above the poles than the equator is... The time it takes air to cool. The surface air-temperature at the equator is much higher than at the poles, meaning that the air rises further to reach the equilibrium required at the tropopause. Likewise, the air at the poles is cooler, and does not require as much room to rise.
Why is the atmospheric pressure less at the poles?
Atmospheric pressure is lower at the poles compared to the equator because of the Earth's shape and rotation. The polar regions receive less direct sunlight, causing the air to be cooler and denser. This creates high-pressure systems that lead to lower atmospheric pressure.
The air above the poles is?
colder than at the equator due to the angle of sunlight hitting the poles, causing denser air to sink and accumulate. This results in high atmospheric pressure and lower temperatures.
What does the air at the poles do when it is colder and denser than the surrounding air?
The cold and dense air at the poles sinks towards the surface. This creates a high-pressure system that can lead to cold and stable weather conditions.
What kind of pressure does the air masses at the poles?
low pressure and high pressure
What happens to the air that sinks at the poles?
The air that sinks at the poles warms up and spreads out towards lower latitudes, forming high pressure systems in the subtropical regions. This sinking air suppresses cloud formation and leads to dry and stable conditions in those areas.
Why is High Pressure Is At The Poles?
High pressure tends to form at the poles due to the cooling of air at the surface, causing it to sink and create a high-pressure system. These regions receive less direct sunlight and have colder temperatures, leading to the air being denser and heavier, resulting in high pressure. Additionally, the Coriolis effect plays a role in the formation of high-pressure systems at the poles.
Air pressure near the equator is less than air pressure at the poles a fact that causes air to move where?
Air moves from high pressure at the poles towards low pressure at the equator due to the pressure difference. This movement of air creates global wind patterns such as the trade winds near the equator.
After high pressure areas are created around the poles cold polar air flows toward?
After high-pressure areas are formed around the poles, cold polar air flows towards lower pressure regions. This movement of air is known as advection, and it helps to balance out the pressure differences between the poles and lower latitudes.
Why does the air fall at the poleS?
Air falls at the poles due to the cooling of air, which increases its density causing it to sink. In addition, high pressure systems tend to form at the poles, leading to the downward motion of air.
When air moves away from the tropics and toward the poles it becomes .?
cool and dry
