ATMOSPHERICPRESSURE

Atmospheric pressure

Atmospheric pressure is the force per unit area exerted on a surface by the weight of air above that surface in the atmosphere of Earth . In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point. On a given plane, low-pressure areas have less atmospheric mass above their location, whereas high-pressure areas have more atmospheric mass above their location. Likewise, as elevation increases, there is less overlying atmospheric mass, so that atmospheric pressure decreases with increasing elevation. On average, a column of air one square centimeter in cross-section, measured ...

The above text is a snippet from Wikipedia: Atmospheric pressure
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atmospheric pressure

Noun

  1. The pressure caused by the weight of the atmosphere above an area.


The above text is a snippet from Wiktionary: atmospheric pressure
and as such is available under the Creative Commons Attribution/Share-Alike License.

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