Converging glacier flow - a case study: the Unteraarglacier

Gudmundsson, Hilmar (1994) Converging glacier flow - a case study: the Unteraarglacier. Mitteilungen - Versuchsanstalt fur Wasserbau, Hydrologie und Glaziologie, 131. pp. 1-120. ISSN 0374-0056

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Official URL: https://www.ethz.ch/content/dam/ethz/special-inter...

Abstract

An ice stream flowing through a convergent bedrock channel may experience a special type of ice deformation, influencing its internal temperature distribution and thus its surface velocity. A glacier confluence represents a well defined special case of converging flow. Field measurements at the confluence of an Alpine glacier were linked to numerical modelling. An exponent n = 3 in Glen's flow law provides the best agreement of numerical and experimental results, although this flow law is not perfectly suited for describing ice flow under strongly three-dimensional conditions. The work presented here refers to essentially non-sliding conditions. This study will help in understanding erosive patterns at glacier confluences.

Item Type: Article
Subjects: F800 Physical and Terrestrial Geographical and Environmental Sciences
Department: Faculties > Engineering and Environment > Geography and Environmental Sciences
Depositing User: Becky Skoyles
Date Deposited: 21 Feb 2019 10:03
Last Modified: 21 Feb 2019 10:03
URI: http://nrl.northumbria.ac.uk/id/eprint/38153

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