geodetic coordinates


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Related to geodetic coordinates: Geocentric coordinates

geodetic coordinates

[¦jē·ə¦ded·ik kō′ȯrd·ən‚əts]
(geodesy)
The quantities latitude, longitude, and elevation which define the position of a point on the surface of the earth with respect to the reference spheroid.

Geodetic Coordinates

 

the geographical latitude and longitude of a point on the earth’s surface, determined by means of geodetic measurement of the distance (mainly by the method of triangulation) and the bearing (azimuth) from several other points whose geographic coordinates are known. Geodetic coordinates are calculated on the surface of a reference ellipsoid, which is a characterization of the shape and dimensions of the earth. They differ to a small degree from latitude and longitude as measured by astronomical methods, because of inaccuracies in the measurements of the adopted ellipsoid and deviations from the perpendicular. Along with the geodetic coordinates of a point, its altitude is also considered. It is calculated from the surface of the adopted reference ellipsoid and differs from its altitude above sea level by the size of its geoidal deviation from this ellipsoid.

geodetic coordinates

A location on earth defined by its latitude, longitude and elevation. See latitude and GPS.
References in periodicals archive ?
Inverse transformation of the geodetic coordinates, to solve for the latitudes and longitudes.
Automated conversion of place names to geodetic coordinates is error-prone, however, and often imprecise; metrics between named places are necessarily approximate.
The triangulation accuracy is defined as the discrepancies points coordinates of images with geodetic coordinates.