Geodetic Investigations in the Canadian Arctic

Résumé

Arctic work of the Canadian Geodetic Survey started in 1935. Between 1942 and 1950, 300 astronomical stations were established on the mainland north of the tree-line and in the southern Canadian Arctic Islands. The shoran electronic method of position fixation has superseded the astronomical method in most areas. Methods are described, as is the extension of the Canadian shoran net since 1949. Future extensions, gravity observations, and needed investigations of changes in mean sea level are briefly discussed.