Antara perkembangan surveying yang berlaku di Canada sekitar 1964 adalah:
1964: Horizontal control for Crustal dynamics
Small geodetic networks were established to detect
horizontal crustal motion, notably near Quebec City (photo), between opposite
shores of the St. Lawrence River between Quebec City and Tadoussac, across the
Strait of Georgia and across Robeson channel between northern Ellesmere Island
and Greenland.
1964: Sea-surface gravimetry
A program of sea-surface gravity measurements was initiated
by the Atlantic Geoscience Centre at Dartmouth, Nova Scotia. In this technique
the gravimeter has to be mounted on a special gyro-stabilized platform designed
to minimize the effects of the ship's motion on the gravity readings. During
the next eighteen years some 295,000 sea-surface measurements would be made in
this program alone, a major contribution to Canadian knowledge of gravity off
the eastern and Arctic seaboards.
Source: nrcan - link.
Sea-surface Gravimetry
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