CGRG Bibliography of Canadian Geomorphology
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Author : Burn, C.R.; Parameswaran, V.R.; Kutny, L.; and Boyle, L.
Date : 1998
Title : Electrical potentials measured during growth of lake ice, Mackenzie Delta area, N.W.T., Canada.
Publication : Permafrost, Seventh International Conference, June 23-27, Yellowknife, Canada. Edited by: A.G. Lewkowicz and M. Allard. Université Laval, Centre d'études nordiques, Collection Nordicana.
Issue : 57:
Page(s) : 101-106.
Abstract
Electrical potentials generated during freezing were measured weekly between November 1996 and March 1997 in two lakes near Inuvik, N.W.T. One is in an upland setting, and receives only local water. The other, in the Mackenzie Delta, is connected to the Mackenzie River's discharge throughout the year. The potentials were measured in the uppermost metre of each lake on electrodes mounted on a PVC pipe and spaced at 10 cm intervals. The potentials were measured with reference to a basal electrode, which remained in water below the ice throughout the winter. The temperature at each electrode was measured by thermistors, to determine the development of the ice cover. Potential differences of up to 500 mV were recorded between the lower water pool and the ice throughout the winter at both lakes. The ice was of negative polarity in each case.
Bibliography of Canadian Geomorphology