Atmospheric pressure

De LibreFind
(Redirigido desde «Sea level pressure»)
Saltar a: navegación, buscar
 
Advanced search
About 9 results found and you can help!
Kollsman-type barometric aircraft altimeter as used in North America displaying an altitude of .

Atmospheric pressure is the force per unit area exerted into a surface by the weight of air above that surface in the atmosphere of Earth (or that of another planet). In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the mass of air above the measurement point. 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 pressure decreases with increasing elevation. On average, a column of air one square centimeter in cross-section, measured from sea level to the top of the atmosphere, has a mass of about 1.03 kg and weight of about 10.1 N (2.28 lbf) (A column one square inch in cross-section would have a weight of about 14.7 lbs, or about 65.4 N).

[Add/rearrange links]

Gallery for «Atmospheric pressure»

Average relevance

[Add/rearrange links]


This results page includes content from Wikipedia which is published under CC BY-SA.