CGRG Bibliography of Canadian Geomorphology
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Author : Arendt, A.; and Sharp, M.
Date : 1999.
Title : Energy balance measurements on a Canadian high Arctic glacier and their implications for mass balance modeling
Publication : XXII General Assembly of the International Union of Geodesy and Geophysics, 19 - 30 July 1999, Birmingham, UK. IAHS-AISH-Publication
Issue : 256:
Page(s) : 165-172
Abstract
Meteorological measurements from 3 weather stations on John Evans Glacier were used to show that (a) lapse rates in air temperature were highly variable (values ranged between -0.02 and -0.63oC per 100 m), and generally lower than assumed in degree-day mass balance models; and (b) degree-day factors, calculated from energy balance measurements at the 3 stations, tended to increase throughout the melt season. Degree-day factors correlated well with measured surface albedo (r2 as high as 0.50), and relationships were consistent between years. A simple albedo algorithm implemented within a degree-day model for John Evans Glacier resulted in average melt predictions that were up to 0.13 m WE closer to observed values than those produced by simulations which relied upon constant degree-day factors used in previous studies.
Bibliography of Canadian Geomorphology