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mean sea level
- Definição1
- The average height of the surface of the sea for all stages of tide. A number preceding MSL indicates altitude in feet above mean sea level.
- Fonte1
- FEDERAL AVIATION ADMINISTRATION. Aircraft flying handbook. Washington, 2004. Disponível em: http://www.faa.gov/library/manuals/aircraft/media/FAA-H-8083-5.pdf. Acesso em: 09 maio 2012.
- Definição2
- The standard earth surface elevation to which the ISA (international standard atmosphere) is referred.
- Fonte2
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Recommended method for computing noise contours around airports. Montreal, 2008. (Doc. 9911).
- Fonte3
- FAA FLIGHT SAFETY BRIEFING. Washington, DC: FAA, mai.-jun. 2015
- Fonte4
- GRÃ-BRETANHA. Meteorological Office. The meteorological glossary. 2nd ed. London: H. M. Stationery Office, 1930.
- Nota adicional1
- Acronym in English: MSL.
- Contexto
- For example, at a cold-climate airport in the summer, ATC might vector you to the final approach course for an instrument approach at 1,500 feet mean sea level (MSL), whereas in the winter, they will most likely vector you to the final approach course at 2,000 feet MSL.
- The International Standard Atmosphere which is used as the basis of graduation of altimeters assumes at mean sea level a temperature of 15°C., a pressure of 1,013-2 mb., and a lapse rate of 6-5°C. per kilometre from sea level up to 11 Km., above which the temperature is assumed constant at - 56-5°C.
- Subárea
- Aeronautical Cartography
- Narrower Term
- above ground level
- above mean sea level
- Spanish
- nivel medio del mar