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Pressure altimeter
Definition An [[aneroid barometer]] calibrated to convert atmospheric pressure into altitude.  +
Defsource American Meteorological Society, Glossary of Meteorology []  +
Note Altimeters use standard atmosphere pressur
Altimeters use standard atmosphere pressure–height relations in converting pressure into altitude. Therefore, the altimeter shows indicated altitude, which may, and frequently does, differ from the actual altitude. An altimeter may be set to measure altitude from an arbitrarily chosen level. It is common practice to use mean sea level; the level of the constant-pressure surface of 29.92 in. of mercury is also used; and, less frequently, the constant-pressure surface of the pressure at airport height. See altimeter setting, pressure altitude. (same source)
setting, pressure altitude. (same source)  +
Has query
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Pressure altimeter + , Pressure altimeter + , Pressure altimeter + , Pressure altimeter +
Categories Navigation , Meteorology
Modification date
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5 July 2016 12:34:29  +
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