Elevation
The elevation of a geographic location is its height above a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic system, vertical datum). Elevation, or geometric height, is mainly used when referring to points on the Earth's surface, while altitude or geopotential height is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit, and depth is used for points below the surface.
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Famous quotes containing the word elevation:
“It was not till the middle of the second dance, when, from some pauses in the movement wherein they all seemed to look up, I fancied I could distinguish an elevation of spirit different from that which is the cause or the effect of simple jollity.—In a word, I thought I beheld Religion mixing in the dance.”
—Laurence Sterne (1713–1768)
“Through all opposition the personal benefits of the reform [dress] [bracketed word in original] have compensated; but had it been mainly sacrifice, the thought of working for the amelioration of women and the elevation of humanity would still have been the beacon-star guiding me on amid all discouragements.”
—Susan Pecker Fowler (1823–1911)
“The ability to secure an independent livelihood and honorable employ suited to her education and capacities is the only true foundation of the social elevation of woman, even in the very highest classes of society. While she continues to be educated only to be somebody’s wife, and is left without any aim in life till that somebody either in love, or in pity, or in selfish regard at last grants her the opportunity, she can never be truly independent.”
—Catherine E. Beecher (1800–1878)