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(Article of periodic en Anglais - 1981)

Document title

Seasonal variations in surface velocity of the lower part of Storglaciären, Kebnekaise, Sweden

Authors(s) and Affiliation(s)

BRZOZOWSKI J. ; HOOKE R. L. ;

Abstract

The surface speed of the lower one-fourth of Storglaciären increases from about 13 mm d near the terminus to slightly under 40 mm d 800 m up-glacier from the terminus. The speed reaches a maximum in late summer and early fall, and then decreases to a minimum in mid-winter. The Difference between the maximum and minimum speeds increases from 2 mm d near the terminus to about 8 mm d 800 m from the terminus. These seasonal variations are interpreted to be a result of variations in sliding speed, in part due to changes in water pressure in the subglacial hydraulic system. If this is the case, the water pressure apparently reaches a maximum a couple of months after the peak summer melt, contrary to observations on some temperate glaciers.

Source

Article of periodic

published at : Geografiska annaler Serie A physical geography Stockholm

Editor :

Millesime : 1981, vol. 63, no3-4 [pp. 233-240]

Bibliographic references : 36 réf.

Language

Anglais

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