- mean-sea-level datum
- отметка среднего уровня моря у г. Ньюлина, принятая за нуль (в государственной высотной сети, Великобритания)
Большой англо-русский и русско-английский словарь. 2001.
mean-sea-level datum
Смотреть что такое "mean-sea-level datum" в других словарях:
Sea Level Datum of 1929 — Geodesy Fundamentals Geodesy · … Wikipedia
mean sea level — The average height of the surface of the sea for all stages of the tide. It is used as a reference for elevations. Usually, it is determined by averaging the height readings observed hourly over a minimum period of nineteen years. Also called sea … Aviation dictionary
Above mean sea level — The term above mean sea level (AMSL) refers to the elevation (on the ground) or altitude (in the air) of any object, relative to the average sea level datum. AMSL is used extensively in radio (both in broadcasting and other telecommunications… … Wikipedia
mean sea level — the mean surface water level determined by averaging heights at all stages of the tide over a certain period, usually a 19 year period. Usually determined from a fixed predetermined reference level or chart datum … Dictionary of ichthyology
Sea level — For the sea level change associated with the current episode of global warming, see current sea level rise. For other uses, see Sea level (disambiguation). This marker indicating the sea level is placed on the path from Jerusalem to the Dead Sea … Wikipedia
sea level — The level of the sea, which serves as the datum used for measurement of land elevations and ocean depths. Sea levels vary greatly from one location to another. Locally, the levels of the surface of the world’s oceans are disturbed by wind driven… … Aviation dictionary
Datum (geodesy) — Geodesy Fundamentals Geodesy · … Wikipedia
North American Vertical Datum of 1988 — Geodesy Fundamentals Geodesy · … Wikipedia
Amsterdam Ordnance Datum — NAP Level in Amsterdam City Hall Normaal Amsterdams Peil (NAP) or Amsterdam Ordnance Datum is a vertical datum in use in large parts of Western Europe. Originally created for use in the Netherlands, it was adopted by Prussia in 1879 under the… … Wikipedia
Ordnance Datum — In the British Isles, an Ordnance Datum or OD is a vertical datum used by an ordnance survey as the basis for deriving altitudes on maps. A spot height may be expressed as AOD for above ordnance datum . Usually mean sea level (MSL) is used for… … Wikipedia
Flight level — A Flight Level (FL) is a standard nominal altitude of an aircraft, in hundreds of feet. This altitude is calculated from a world wide fixed pressure datum of 1013.25 hPa (29.921 inHg), the average sea level pressure, and therefore is not… … Wikipedia
