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Changing drainage patterns within South Cascade Glacier, Washington, USA, 1964-1992

Biogeochemistry of seasonally snow-covered catchments. Proc. symposium, Boulder, 1995

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Abstract

The theoretical patterns of water drainage are presented for South Cascade Glacier for four different years between 1964 and 1992, during which the glacier was thinning and receding. The theoretical pattern compares well, in a broad sense, with the flow pattern determined from tracer injections in 1986 and 1987. Differences between the patterns may result from the routing of surface meltwater in crevasses prior to entering the body of the glacier. The changing drainage pattern was caused by glacier thinning. The migration of a drainage divide eventually rerouted most of the surface meltwater from the main stream that drained the glacier in 1987 to another, formerly smaller, stream by 1992. On the basis of projected glacier thinning between 1992 and 1999, we predict that the drainage divide will continue to migrate across the glacier.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Changing drainage patterns within South Cascade Glacier, Washington, USA, 1964-1992
Series title:
Biogeochemistry of seasonally snow-covered catchments. Proc. symposium, Boulder, 1995
Volume
228
Year Published:
1995
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Biogeochemistry of seasonally snow-covered catchments. Proc. symposium, Boulder, 1995
First page:
379
Last page:
386
Number of Pages:
8