mean sea level

mean sea level
The average height of the surface of the sea for all stages of the tide; used as a reference for elevations. Also called MSL.

Military dictionary. 2000.

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  • Mean Sea Level — Österr. Höhenmarke am alten Bahnhof von Tarvis / Tarvisio Badwater im kalifornischen …   Deutsch Wikipedia

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  • mean sea level — noun the sea level halfway between the mean levels of high and low water …   English new terms dictionary

  • mean sea level — noun Etymology: mean (VII) : sea level 2 …   Useful english dictionary

  • 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

  • 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

  • mean sea level — noun the average level of the sea as calculated from a long series of observations of tidal oscillations taken at equal time intervals …  

  • 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

  • Permanent Service for Mean Sea Level — The Permanent Service for Mean Sea Level ( [ PSMSL] ), established in 1933, is a repository for tide gauge data used in the measurement of long term sea level change. The PSMSL is based at the Proudman Oceanographic… …   Wikipedia

  • Sea level rise — is an increase in sea level. Multiple complex factors may influence this change. Sea level has risen about 130 meters (400 ft) since the peak of the last ice age about 18,000 years ago. Most of the rise occurred before 6,000 years ago. From 3,000 …   Wikipedia

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