History of Geodetic Networks

by James R. Plasker, (A.M.ASCE), Civ. Engr.; Topographic Div., U.S. Geological Survey, Lakewood, Colo.,

Serial Information: Journal of the Surveying and Mapping Division, 1976, Vol. 102, Issue 1, Pg. 21-30

Document Type: Journal Paper


The 50th anniversary of the Surveying and Mapping Division of ASCE provides an occasion to review some of the many advancements that have led to the current state of the art in geodesy. Beginning with the invention of the decimal and sexagesimal systems, the field of geodesy has relied upon many allied developments including the theory of triangulation, the definition of π, the invention of the telescope, and an accurate chronometer. In recent years electronic distance measuring instruments, satellite observations, and continued control network densification have pointed to the need for readjustment of the horizontal and vertical networks of North America.

Subject Headings: History | Geodetic surveys | Mapping | Triangulation | Terminology and definition | Telescopes | Distance measurement | Satellites | North America

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