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Elevation or altitude is generally expressed as "metres above mean sea level" in the metric system, or "feet above mean sea level" in United States customary and imperial units. Common abbreviations in English are: AMSL – above mean sea level [3] ASL – above sea level [4] FAMSL – feet above mean sea level [5] FASL – feet above sea level [6]
Height above mean sea level (AMSL) is the elevation (on the ground) or altitude (in the air) of an object, relative to a reference datum for mean sea level (MSL). It is also used in aviation, where some heights are recorded and reported with respect to mean sea level (contrast with flight level ), and in the atmospheric sciences , and in land ...
Originally known as Sea Level Datum of 1929, NGVD 29 was determined and published by the United States Coast and Geodetic Survey [2] and used to measure the elevation of a point above and depression below mean sea level (MSL).
In aviation, atmospheric sciences and broadcasting, a height above ground level (AGL [1] or HAGL) is a height measured with respect to the underlying ground surface.This is as opposed to height above mean sea level (AMSL or HAMSL), height above ellipsoid (HAE, as reported by a GPS receiver), or height above average terrain (AAT or HAAT, in broadcast engineering).
The orthometric height (symbol H) is the vertical distance along the plumb line from a point of interest to a reference surface known as the geoid, the vertical datum that approximates mean sea level.
Waterville Robert Lafleur Airport (IATA: WVL, ICAO: KWVL, FAA LID: WVL) is a general aviation airport located two miles (3 km) southwest of the central business district (CBD) of Waterville, a city in Kennebec County, Maine, USA.
Contact us; Contribute Help; ... Elevation AMSL: 13 ft / 4 m: Coordinates ... Search. Toggle the table of contents. North Eleuthera Airport.
Z. M. Jack Stell Field covers an area of 126 acres (51 ha) at an elevation of 184 feet (56 m) above mean sea level.It has one runway designated 5/23 with an asphalt surface measuring 5,009 by 75 feet (1,527 x 23 m).