CGRG Bibliography of Canadian Geomorphology
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Author : Andrews,J.T.
Date : 1971
Title : Quantitative analysis of the factors controlling the distribution of corrie glaciers in Okoa Bay, East Baffin Island: (with particular reference to global radiation)
Publication : Quantitative Geomorphology: Some Aspects and Applications. Edited by; M. Morisawa. New York Sate University Press
Issue :
Page(s) : 223-241
Abstract
Corrie glaciers near Okoa Bay, East Baffin Island, N.W.T., Canada were studied using quantitative methods. Indirect glaciological climatological measures (such as elevation, geometry and size) were studied using multiple stepwise discriminant analysis. Of five variables selected the most important are residuals from two trend surfaces on corrie lip and mountain summit elevations. Ice-filled and ice-free corries differ on the average by only 200 m elevation. The importance of global radiation on present glacier distribution was analyzed. Discriminant analysis shows the degree of difference in terms of global radiation receipts between presently glacierized valleys (north- and east-facing) and two empty (south-facing) valleys. Average daily totals for august 21st were 311 and 398 cal per sq cm, respectively. The discriminant equation was used to find the effects of changes in global radiation due to variations in the obliquity of the eclipticand elevation on the state of glacierization. These factors can account for up to a 25% shift in the state of glacierization. Other factors, included in any quaternary climatic model.
Bibliography of Canadian Geomorphology