# standard atmosphere

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Related to standard atmosphere: Standard atmospheric pressure
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 Noun 1 standard atmosphere - a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigradepressure unit - a unit measuring force per unit areas.t.p., STP - standard temperature and pressure
References in periodicals archive ?
A comprehensive test plan was executed at Leh (3300m) in temperatures upto International Standard Atmosphere (ISA) +32 degree C which included envelope expansion, performance, and flying qualities," HAL spokesperson Gopal Sutar said in a statement.
In a standard atmosphere the temperature decreases by about 3.6 degrees F per 1000 feet.
(About 30,000 pounds of that comes from fuel.) For smaller jet airliners, such as the Embraer ERJ 190, the temperature ceiling is lower - varying on an aviation model known as International Standard Atmosphere.
KPT was the correction computed from the expression KPT = (273.5+T)/(273.5+T0) x Po / P where To is standard temperature (To = 22AdegC) and Po is standard pressure which is 101.33 kPa (kilo pascal, 1 standard atmosphere = 760 mm of Hg = 101.33 kPa), T is temperature of water inside an ion chamber, taken as the temperature of the surrounding water and P, assumed to be the local air pressure, is the pressure inside the ion chamber.
It has a compressibility correction chart, worldwide time correction chart and an ICAO Standard Atmosphere reference table.
With the research conclusions, the ASE can be degraded by taking small range step in a standard atmosphere. However, this solution does not work well for nonstandard atmosphere on some conditions.
That's factoring a standard atmosphere of 59 degrees Fahrenheit and 29.92 inHg of barometric pressure.
Unfortunately, the calculation of DA is built on a house of cards made up of assumptions about a "standard atmosphere on a standard day," with lots of empirical formulae to adjust.

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