geoid |
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navigate by keyword : aircraft altitude build building chimney columns commonly custom depth design designer detail details development dirt distinctive double dream dwelling earth elevation equipotential estate exterior fixed gables garage geographic geoid geometric geopotential gravitational habitat height home house huge large location luxurious manor mansion massive mathematical model mortgage new orbit peaks pillars point points prestigious private real reference referring residence rock roof shake shingle site sky spacecraft spacious spectacular suburban success surface |
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The elevation of a geographic 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 gravitational surface. 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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