What is International Standard Atmosphere?
In this glossary, International Standard Atmosphere refers to: A model of the atmosphere based on standard average conditions at sea level, used for calibrating instruments and performance calculations. Defined by ICAO: 15°C, 1013.25 hPa, and lapse rate of 2°C per 1000 ft.
How is International Standard Atmosphere used in aviation?
In aviation communication, this term appears in contexts such as: "Performance charts are based on International Standard Atmosphere conditions unless otherwise noted."
Why does International Standard Atmosphere matter in aviation?
International Standard Atmosphere matters because it supports clear communication in Meteorology contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.
Who uses International Standard Atmosphere?
International Standard Atmosphere is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.
What category does International Standard Atmosphere belong to?
In this glossary, International Standard Atmosphere is grouped under Meteorology. Related pages in this category explain adjacent procedures, commands and operational concepts.
Where does this definition come from?
This definition is sourced from ICAO Doc 9432, FAA PCG and published by Protermify Aviation as a static aviation reference page.
