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 ?
Object height in normal direction above the ellipsoid describing geodetic coordinate system:
Applying intermediate 3D Cartesian horizontal and geocentric equatorial coordinate systems to determine an object's 3D position in the Earth's unified geodetic coordinate system by polar observations is suggested.
[V.sub.sN(LMS)], [V.sub.sE(LMS)], [V.sub.sUp(LMS)]--site movement velocities determined in the geodetic coordinates by the robust Least Median of Squares method from all combinations of GPS data sets observed on a certain site,
[[sigma].sub.N(B)], [[sigma].sub.E(B)] [[sigma].sub.Up(B)]--[sigma] of the site position determined by the BERNESE ADDNEQ module and assessed in geodetic coordinates,
[[sigma].sub.VN(B)], [[sigma].sub.VE(B)], [[sigma].sub.VUp(B)]--[sigma] of the movement velocities determined by the BERNESE ADDNEQ module and assessed in the geodetic coordinates,
[[sigma].sub.VN(M)], [[sigma].sub.VE(M)], [[sigma].sub.VUp(M)]--[sigma] of movement velocities determined by the robust M-estimation method and assessed in the geodetic coordinates,
[[sigma].sub.sVN(B)], [[sigma].sub.sVE(B)], [[sigma].sub.sVUp(B)]--[sigma] of site movement velocities determined by the BERNESE ADDNEQ solution in the geodetic coordinates from all combinations of GPS data sets observed for a certain site,
[[sigma].sub.sVN(LS)], [[sigma].sub.sVE(LS)], [[sigma].sub.sVUp(LS)]--[sigma] of site movement velocities determined by the Least Squares estimation in the geodetic coordinates from all combinations of GPS data sets observed for a certain site,
[[sigma].sub.sVN(M)], [a.sub.sVE(M)], [[sigma].sub.sVUp(M)]--[sigma] of site movement velocities determined by the robust M-estimation in the geodetic coordinates from all combinations of GPS data sets observed for a certain site,
[[sigma].sub.sVN(LMS)], [[sigma].sub.sVE(LMS)], [[sigma].sub.sVUp(LMS)]--[sigma] of site movement velocities by the robust Least Median of Squares estimation in the geodetic coordinates from all combinations of GPS data sets observed for a certain site,

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