Altitude variation of glacier mass balance in Scandinavia

[1] For each of ten glaciers in Norway and two in Sweden, vertical profiles of net balance bn(z), which are typically published as values at about a dozen altitudes, are strongly linear and nearly parallel from year to year. Separate linear functions fit the bn(z) from year to year with r 2 0.89 ove...

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Bibliographic Details
Main Author: L. A. Rasmussen
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.584.853
http://earthweb.ess.washington.edu/~lar/p49text.pdf
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Summary:[1] For each of ten glaciers in Norway and two in Sweden, vertical profiles of net balance bn(z), which are typically published as values at about a dozen altitudes, are strongly linear and nearly parallel from year to year. Separate linear functions fit the bn(z) from year to year with r 2 0.89 over the 12 glaciers. A family of parallel lines for each glacier that differ from year to year only by an amount Dbn constant with altitude has r2 0.85. There is an altitude z0 on each glacier where the measured balance bn(z 0) correlates well with the glacier-total bn with r 0.97 over the 12 glaciers. A remarkable consequence of this and of the high correlation of bn between many of the glaciers in the region is that measurements on one glacier (1775 meters on Hardangerjøkulen) provide a good estimate of bn at several