Air - Air pressure - What is the air pressure

5 important questions on Air - Air pressure - What is the air pressure

What is the unit of pressure?

Pascal (Pa)

What is the unit of air pressure in Weather reports?

Hectosplascals (hPa). 1hPa = 100 Pascale.

What is the unit that shows the air pressure on barometers and weather charts?

The millibar (mbar).
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Is there a difference between the two units?

No, there isn't any difference: 1mbar = 1hPa.

Is air pressure the same on all levels in the atmosphere? In other words: is it the same at sea level as in the mountains?

Since the amount of air becomes less and less the higher you go in the atmosphere, this means that the air pressure decreases (verminderd) as well. So the higher you go, the lower the air pressure. So the answer is no.

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