Converging glacier flow - a case study: the Unteraarglacier

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15 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)1-120
JournalMitteilungen - Versuchsanstat fur Wasserbau, Hydrologie und Glaziologie, ETH Zurich
Publication statusPublished - 1994


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