ID | ||
Preferred Name |
atmospheric pressure |
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Synonyms |
air pressure barometric pressure |
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Definitions |
[NASA] The amount of force exerted over a surface area, caused by the weight of air molecules above it. As elevation increases, fewer air molecules are present. Therefore, atmospheric pressure always decreases with increasing height. A column of air, 1 square inch in cross section, measured from sea level to the top of the atmosphere would weigh approximately 14.7 lb/in2. The standard value for atmospheric pressure at sea level is: 29.92 inches or 760 mm of mercury 1013.25 millibars (mb) or 101,325 pascals (Pa). |
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Obsolete |
true |
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In Schemes | ||
Type |
http://www.w3.org/2004/02/skos/core#Concept |
scopeNote | US LTER controlled vocabulary |
altLabel | air pressure barometric pressure |
creator | |
definition | [NASA] The amount of force exerted over a surface area, caused by the weight of air molecules above it. As elevation increases, fewer air molecules are present. Therefore, atmospheric pressure always decreases with increasing height. A column of air, 1 square inch in cross section, measured from sea level to the top of the atmosphere would weigh approximately 14.7 lb/in2. The standard value for atmospheric pressure at sea level is: 29.92 inches or 760 mm of mercury 1013.25 millibars (mb) or 101,325 pascals (Pa). |
isReplacedBy | |
prefLabel | atmospheric pressure |
created | 2016-03-31 |
broader | |
deprecated | true |
modified | 2022-03-21 |
exactMatch | http://linkeddata.ge.imati.cnr.it:2020/resource/EARTh/11840 |
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