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Victoria University Antarctic Research Expedition Science and Logistics Reports 1984-85: VUWAE 29

Mackay Glacier Movement

Mackay Glacier Movement

A pole network established in late November 1982 was resurveyed this season by Lands and Survey Department surveyors, both in November 1984 and January 1985. In addition, surface ablation was measured in November 1984. Results are tabulated below (Table 6).

Table 6. Mackay Glacier Movement

Table 6. Mackay Glacier Movement

In addition, a traverse along the length of the Mackay Glacier Tongue was attempted, to survey surface elevation. However, the tongue is badly crevassed and the survey was abandoned after several hours.

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Annual movement of the Mackay Glacier, above its grounding line, is 226.5 m, and on the floating tongue is 277 m. The two surveys this season show that there is no measurable change in the flow rate of the Mackay Glacier from winter to summer.