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- The air from sub-polar low pressure belts after saturation becomes dry. This dry air becomes cold while moving towards poles through upper troposphere.
 
- The air from sub-polar low pressure belts after saturation becomes dry. This dry air becomes cold while moving towards poles through upper troposphere.
 
- The cold air (heavy) on reaching poles subsides '''creating a high pressure belt at the surface of earth.'''}}
 
- The cold air (heavy) on reaching poles subsides '''creating a high pressure belt at the surface of earth.'''}}
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https://en.wikipedia.org/wiki/Polar_High
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{{cite|Polar High
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The polar highs are areas of high atmospheric pressure around the north and south poles; the north polar high being the stronger one because land gains and loses heat more effectively than sea. The cold temperatures in the polar regions cause air to descend to create the high pressure (a process called subsidence), just as the warm temperatures around the equator cause air to rise to create the low pressure intertropical convergence zone.}}

Revision as of 22:41, 4 June 2019

Work in Progress

Gnome Experiment

Gnome-sf.jpg

Spring Scale

Spring scale.page.tagged.jpg

http://physicstasks.eu/930/spring-scale-on-the-pole-and-on-the-equator

  “ We calibrated a spring scale on the North Pole and then we moved the scale to the Equator.

Does the spring scale give the same readings as on the pole? Give reasons. ”

This is a different experiment than weighing a mass in two different areas with scales that have been calibrated for their local areas.

Different areas have different air pressures and therefore different weights to their atmosphere. They took a scale calibrated for an area of higher pressure to an area of lower pressure and are measuring the difference seen on that scale.


Practical calculations for engineers

  “ Suppose such a spring balance be made and calibrated in London by suspended weights which are mutiples or sub-multiples of the point weight. Then if the balance and the standard pound weights were taken to different latitudes, it would be found that the balance would show increasing readings for the same weight in passing from the equator to the poles. ”

https://www.pmfias.com/pressure-belts-pressure-systems-equatorial-low-sub-tropical-high-sub-polar-low-polar-high/

  “ World Distribution of Sea Level Pressure

The atmosphere exerts a pressure of 1034 gm per square cm at sea level. This amount of pressure is exerted by the atmosphere at sea level on all animals, plants, rocks, etc.

Near the equator the sea level pressure is low and the area is known as equatorial low. Along 30° N and 30° S are found the high-pressure areas known as the subtropical highs. Further pole wards along 60° N and 60° S, the low-pressure belts are termed as the sub polar lows. Near the poles the pressure is high and it is known as the polar high. ”

and further down:

  “ Polar High Pressure Belt

- The polar highs are small in area and extend around the poles. - They lie around poles between 80 – 90° N and S latitudes.

Formation

- The air from sub-polar low pressure belts after saturation becomes dry. This dry air becomes cold while moving towards poles through upper troposphere. - The cold air (heavy) on reaching poles subsides creating a high pressure belt at the surface of earth. ”

Scales Affected by Air Pressure

https://www.arlynscales.com/scale-knowledge/factors-can-affect-scales-accuracy/

  “ Factors That Can Affect Your Scale’s Accuracy

...

Differences in air pressure – Scales can provide inaccurate measurements if the air pressure from the calibration environment is different than the operating environment. ”

Barometer

A scale that measures the weight of the atmosphere is called the "barometer".

Air pressure does not affect the scale trivially. See the following illustration and text:

https://www.artofmanliness.com/articles/fair-or-foul-how-to-use-a-barometer/

Barometer.gif

  “ Air pressure decreases as altitude increases.

Atmospheric pressure — or barometric pressure — is simply the weight of the air at ground level. It’s a little easier to understand when you think about the concept of water pressure first. As you get deeper in water, the pressure increases. This is because as you descend, the built up weight of the water on top of you increases. In 1 foot of water, you have the weight of that foot of water pressing down on you. In 2 feet of water, you have the weight of an extra foot of water pressing on you. It’s quite logical, really. ”

Q. Sure, but are we talking about being at 18,000' versus sea level or at a pole versus the equator?

A. The difference between those two locations isn't necessarily as radical. The point is that farcical promotional stunts are being presented as fact, without control for other variables.

Worldwide Air Pressure Gradient

https://www.pmfias.com/pressure-belts-pressure-systems-equatorial-low-sub-tropical-high-sub-polar-low-polar-high/

World Distribution of Sea Level Pressure

  “ The atmosphere exerts a pressure of 1034 gm per square cm at sea level. This amount of pressure is exerted by the atmosphere at sea level on all animals, plants, rocks, etc.

Near the equator the sea level pressure is low and the area is known as equatorial low. Along 30° N and 30° S are found the high-pressure areas known as the subtropical highs. Further pole wards along 60° N and 60° S, the low-pressure belts are termed as the sub polar lows. Near the poles the pressure is high and it is known as the polar high. ”

and further down:

  “ Polar High Pressure Belt

- The polar highs are small in area and extend around the poles. - They lie around poles between 80 – 90° N and S latitudes.

Formation

- The air from sub-polar low pressure belts after saturation becomes dry. This dry air becomes cold while moving towards poles through upper troposphere. - The cold air (heavy) on reaching poles subsides creating a high pressure belt at the surface of earth. ”

https://en.wikipedia.org/wiki/Polar_High

  “ Polar High

The polar highs are areas of high atmospheric pressure around the north and south poles; the north polar high being the stronger one because land gains and loses heat more effectively than sea. The cold temperatures in the polar regions cause air to descend to create the high pressure (a process called subsidence), just as the warm temperatures around the equator cause air to rise to create the low pressure intertropical convergence zone. ”