Glaciological studies in the region of Wilkes, Eastern Antarctica, 1961
|Authors:||Budd, W. F.|
|Note:||Austral. Natl. Antarctic Res. Expeds., ANARE Scient. Repts., ser. A (4), Glaciol., Publ. No. 88, 152 p., 1966, 90 refs. Ant. Acc. No: 6606|
|Abstract:||An analysis of the glaciological work at Wilkes initiated by U. S. glaciologists in 1957-58 and continued and extended by ANARE to 1962 is presented. The climate at Wilkes, as indicated by the three climatic elements, temperature, wind speed, and precipitation, varies considerably from one year to another. Accumulation measurements using stakes over a 5-year period from Wilkes to 80 km inland show that the position of the snow line varies from one year to another. Measurements of wind speed and snow drift at various levels above the surface, both at Wilkes and on the inland plateau, show that the variation in drift density conforms with the theory of turbulent snow transport discussed by Dingle and Radok (1960). Mean annual temperatures decrease with elevation by 0.9°C/100 m near the coast, and 1.2°C/100 m 500 km inland. Temperature gradients between 10 and 30 m depth decrease gradually from + 2.8°C/100 m near the coast to + 0.4°C/100 m 60 km inland. Transitions in the snow and ice mass flux are related to firn compaction and tunnel contraction at substation S2, and movement of the Vanderford Glacier and ice of Cape Folger. Mass budget calculations suggest that the area 200 km inland appears to be approx, in balance but further inland there may be a net gain.|
|Index Terms:||Ice sheet--Flow; Ice sheet--Mass balance; Snow--Accumulation; Snow--Drifting; Snow--Stratigraphy; Snow--Temperature; --Wilkes Land|
|Coordinates:||S660759 S660759 E1104359 E1104359|
S663459 S663459 E1102559 E1102559
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