ICAO standard atmosphere

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A standard model of the atmosphere adopted by the International Civil Aviation Organization (ICAO). The principal features are the assumption of a standard mean sea-level pressure of 1013.25 hPa and an overall lapse rate of 6.5 deg C km−1 from the surface to the tropopause, which is taken to lie at a height of 11 km.

Subjects: Meteorology and Climatology.

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