Author:
Lewis Karen J.,Fountain Andrew G.,Dana Gayle L.
Abstract
The surface energy balance was calculated to estimate sublimation and melt on
the surface and terminus of Canada Glacier, Taylor Valley, Antarctica, during the
1994-95 and 1995-96 austral summers. Our results indicate that sublimation
accounted for roughly 80% of the observed 1994-95 summer ablation and 40% of the
observed 1995-96 summer ablation on the surface of the glacier. Sublimation Oil
the terminus cliffs appears to be less significant than sublimation on the glacier
surface, probably accounting for at most 10-15% of the measured ablation. Based on
these results, both surface and terminus cliff melt were calculated and compared
with gauged flow in the Glaciol streams. We found thai while the terminus cliffs
represent only 2% of the total ablation zone, they account for 10— 40% of the
total meltwater runoff. Given pur current instrumentation, we can estimate
meltwater discharge from the glacier with an accuracy of ±20%.
Publisher
International Glaciological Society
Cited by
40 articles.
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