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elevation |
Also found in: Dictionary/thesaurus, Acronyms, Wikipedia, Hutchinson | 0.04 sec. |
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elevation, vertical distance from a datum plane, usually mean sea level sea level, the level of the sea, which serves as the datum used for measurement of land elevations and ocean depths. Theoretically, one would expect sea level to be a fixed and permanent horizontal surface on the face of the earth, and as a starting approximation, ..... Click the link for more information. to a point above the earth. Often used synonymously with altitude altitude, vertical distance of an object above some datum plane, such as mean sea level or a reference point on the earth's surface. It is usually measured by the reduction in atmospheric pressure with height, as shown on a barometer or altimeter . ..... Click the link for more information. , elevation is the height on the earth's surface and altitude, the height in space above the surface. The elevation of a feature is calculated through such surveying techniques as trigonometric triangulation and aerial photogrammetry. Elevation is represented by using contours contour or contour line, line on a topographic map connecting points of equal elevation above or below mean sea level. It is thus a kind of isopleth, or line of equal quantity. ..... Click the link for more information. of equal elevation lines, three-dimensional computer graphics representation, or molded three-dimensional plastic models. |
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| We were rapidly approaching the mountains in the South ; but our elevation was more than sufficient to enable us to pass them in safety. For a distance extending nearly 1500 miles east and west, and 600 north and south, there is scarcely an elevation worthy to be called a mountain. Had the elevation of the parabolic mirror been a few yards higher, none could have lived to tell the tale. |
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elevation
