a height above ground level (AGL or HAGL) is a height measured with respect to the underlying ground surface. This is as opposed to height above mean...

Height above mean sea level is a measure of a location's vertical distance (height, elevation or altitude) in reference to a vertical datum based on a...

transmission towers, an altitude of 150 m (490 ft) above ground level applies. Height above ground level in NOE and low flying generally vary with the aircraft...

location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential...

cited in height above sea level, although what "sea level" actually means is a more complex issue than might at first be thought: the height of the sea...

increase in height above ground level. In metric units, it is often measured in units of meters per second of speed, per kilometer of height (m/s/km), which...

in geodesy Height above mean sea level Height above average terrain Height above ground level Measured depth Normal height Orthometric height Thickness...

mountain peak), then altitude (height above sea level) is called elevation. In a two-dimensional Cartesian space, height is measured along the vertical...

(59 ft) below ground. The height of the tower's steel antenna is 168 metres (551 ft). With a total height of 587 metres (1,926 ft) above sea level, it carries...

Mission on the Jason-2 satellite in 2008. Height above mean sea level (AMSL) is the elevation (on the ground) or altitude (in the air) of an object, relative...

Height above average terrain (HAAT), or (less popularly) effective height above average terrain (EHAAT), is the vertical position of an antenna site above...

floor at ground or street level is called the "ground floor" (i.e. it needs no number; the floor below it is called "basement", and the floor above it is...

are industry standard. The radar altimeter is used to measure height above ground level during landing in commercial and military aircraft. Radar altimeters...

airs above the ground or school jumps are a series of higher-level, Haute ecole, classical dressage movements in which the horse leaves the ground. They...

supported by 28 huge pillars, the maximum height of the pillars reaching 115 ft. The trough structure is 7 ft in height, with a width of 7.5 ft. The trough...

of Persepolis in Iran. They are all situated at a considerable height above ground-level. One of the tombs is explicitly identified by an accompanying...

altimeter. A radar altimeter measures absolute altitude: the height "Above Ground Level" (AGL). As of 2010[update], all commercial radar altimeters use...

kilometers above the Earth's surface. The troposphere extends from the ground up to a variable height of approximately 14 kilometers above sea level. Ozone...

It can operate in a height above ground level of 400 m (1,300 ft) at a maximum elevation of 2,800 m (9,200 ft) above mean sea level. The drone is dust-resistant...

above) requires the input of H which is the pollutant plume's centerline height above ground level—and H is the sum of Hs (the actual physical height...

altitude of 1,040 feet (320 m) MSL corresponded to an actual height above ground level (AGL) of only 429 feet (131 m).: 7  When Flight 553 reached the...

Biru Maximum height above ground level was 53.5 and 47.4 m (176 and 156 ft) for the 13- and 11-storey towers, respectively.: 107  Height, width, and length...

point would not add to the height of the tree. On a slope this base point is considered as halfway between the ground level at the upper and lower sides...

bushing elevation (in meters above sea level, or meters above ground level) KBG – kelly bushing height above ground level KBUG – kelly bushing underground...

h R , {\displaystyle d\approx {\sqrt {2\,h\,R}}\,,} where h is height above sea level and R is the Earth radius. The expression can be simplified as:...

many countries, DBH is measured at approximately 1.3 m (4.3 ft) above ground. The height can make a substantial difference to the measured diameter. In...

hundred. Five hundred." (RA height EGPWS: "Four hundred. Three hundred. Two hundred." (Actual height (above ground level)) First officer: "Five hundred...

1013 hPa or (29.92 inHg). At a flight level, every aircraft has the same altimeter setting; the actual height varies due to a constant pressure. Because...

an orthogonally projected plane cut at the typical four foot height above the floor level. A floor plan may show any of the following elements: interior...

contrast to mean sea-level pressure, which involves the extrapolation of pressure to sea level for locations above or below sea level. The average pressure...