Geodetic Control Network


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Geodetic Control Network

 

a network or system of points selected in a definite manner and marked on the ground, serving as control points for topographical surveying and geodetic measurements on the ground. A distinction is made between the plane geodetic control network and the altitudinal geodetic control network. The plane network is constructed primarily by the method of triangulation, and the relative position of its points is determined by geodetic coordinates or, more frequently, rectangular coordinates. The altitudinal geodetic control network (leveling network) is constructed by the method of geometric leveling, which is used to determine the altitude of points above sea level. The geodetic control network is of great practical importance in compiling topographical maps and determining the shape and size of the earth.

References in periodicals archive ?
The choice of the appropriate method to determine displacements depends on, among others, the type designated deformation indicators, the accuracy aspects of designated shifts, geodetic control network size and the control measurements frequency.
The OC Geodetic Control Network is constantly maintained and expanded; it now consists of approximately 2,700 stations.