Standard pressure altitude
From AMS Glossary
Revision as of 18:58, 25 April 2012 by Perlwikibot
standard pressure altitude
The altitude that corresponds to a given value of atmospheric pressure according to the ICAO standard atmosphere.
It is the indicated altitude of a pressure altimeter at an altimeter setting of 29.92 in. of mercury (1013.2 hPa); therefore, it is the indicated altitude above the 1013.2-hPa constant- pressure surface.