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Glacier–permafrost hydrological interconnectivity: Stagnation Glacier, Bylot Island, Canada

By
Brian J. Moorman
Brian J. Moorman
Department of Geography, University of Calgary, 2500 University Drive, Calgary, Alberta, Canada T2N 1N4 (e-mail: moorman@ucalgary.ca)
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Published:
January 01, 2005

Abstract

The complex thermal structure in areas where polythermal glaciers and continuous permafrost are present increases the potential for direct linkages between subsurface water conduits within glaciers and permafrost. In this study, hydrologic features of a glacier and the surrounding ice-cored moraines were examined and the potential for englacial water to flow out of the glacier and into the moraine was investigated. Ground-penetrating radar investigations, dye trace tests and direct observations of hydrological features (e.g., moulins, springs and caves) on and around Stagnation Glacier on Bylot Island, Arctic Canada, were undertaken. Data reveal that englacial conduits extend from the glacier into the adjacent ice-cored moraine. Glacial meltwater may have experienced variable flow conditions over the last 10 years and the conduit closures have occurred over a much longer time period. The study illustrates the interconnectivity of the glacial and permafrost hydrological systems.

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Contents

Geological Society, London, Special Publications

Cryospheric Systems: Glaciers and Permafrost

C. Harris
C. Harris
Cardiff University, UK
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J. B. Murton
J. B. Murton
University of Sussex, UK
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Geological Society of London
Volume
242
ISBN electronic:
9781862394902
Publication date:
January 01, 2005

GeoRef

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