altitude datum
The arbitrary level from which vertical displacement is measured. The datum for height measurement is the terrain directly below the aircraft or some specified datum; for pressure altitude, the level at which the atmospheric pressure is 29.92 inches of mercury (1013.2 m.bs); and for true altitude, mean sea level. See also altitude.

Military dictionary. 2000.

Look at other dictionaries:

  • altitude datum — aukščio atskaita statusas T sritis Gynyba apibrėžtis Pasirinktas lygis, nuo kurio matuojamas vertikalus nuotolis. Aukščio matavimo atskaita yra žemės paviršius tiesiog po orlaiviu ar kitas sutartas lygis (barometriniam aukščiui – 29,92 colio… …   NATO terminų aiškinamasis žodynas

  • altitude datum — The arbitrary level from which vertical displacement is measured. The datum for height measurement is the terrain directly below the aircraft or some specified datum; for pressure altitude, the level at which the atmospheric pressure is 1013.2… …   Aviation dictionary

  • altitude height — See altitude datum …   Military dictionary

  • Altitude (disambiguation) — Altitude is the height of an object over a datum.It may also refer to: *Height *Altitude (astronomy), one of the coordinates of the horizontal coordinate system *Altitude (triangle), in geometry, a triangle with a line passing through one vertex… …   Wikipedia

  • Altitude — For other uses, see Altitude (disambiguation). Not to be confused with Attitude. Altitude or height is defined based on the context in which it is used (aviation, geometry, geographical survey, sport, and more). As a general definition, altitude… …   Wikipedia

  • datum level — A surface to which elevations, heights, or depths on a map or chart are related. See also altitude …   Military dictionary

  • Sea Level Datum of 1929 — Geodesy Fundamentals Geodesy · …   Wikipedia

  • référence d’altitude — aukščio atskaita statusas T sritis Gynyba apibrėžtis Pasirinktas lygis, nuo kurio matuojamas vertikalus nuotolis. Aukščio matavimo atskaita yra žemės paviršius tiesiog po orlaiviu ar kitas sutartas lygis (barometriniam aukščiui – 29,92 colio… …   NATO terminų aiškinamasis žodynas

  • height datum — See altitude datum …   Military dictionary

  • North American Vertical Datum of 1988 — Geodesy Fundamentals Geodesy · …   Wikipedia

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