A World Survey Control System and its Implications for National Control Networks

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Abstract
The establishment of a modern geodetic control network is shown to be affected by two developments, the coming of age of the method of satellite geodesy and the technical progress made in the general field of precise metrology. A general description is given of the method and potential of dynamic satellite geodesy and geometric satellite triangulation for the creation of a geodetic world-wide reference system as well as for the establishment of densification control on continental land masses. The three-dimensional densification nets are shown to provide a very precise framework to which the results of the conventional geodetic surface operations can be tied. This leads to a homogeneous and unambiguously defined presentation of both the geometric and the physical parameters determined by geodetic operations. The conceptual approach is paralleled with descriptions of programs now in progress, including statements about the contemplated schedule and the expected accuracies.

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