Glacier ice: definitions and dynamics

David J. A. Evans

in Glaciation: A Very Short Introduction

Published in print October 2018 | ISBN: 9780198745853
Published online October 2018 | e-ISBN: 9780191808227 | DOI:

Series: Very Short Introductions

Glacier ice: definitions and dynamics

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The shape and size of glacier ice bodies (their morphology) is dictated by the interplay between climate and topography, and a classification scheme has been adopted to cover all the variants that lie on a spatial and temporal continuum of morphologies. ‘Glacier ice: definitions and dynamics’ explains that in any one location over time different glacier morphologies may evolve. It describes how water as a liquid is fundamental to glacial processes, and considers a range of glacier dynamics and flow mechanics, including the processes and causes of ice deformation, creeping ice, sliding beds, and glacial surge. It also explains subglacial bed deformation, a relatively newly discovered process that emerged only in the 1970s.

Keywords: deformation; flow; glacier; Greenland Ice Sheet; ice stream; pressure melting point; shear stress; strain rate; surge; tunnel valley

Chapter.  3928 words. 

Subjects: Physical Geography and Topography

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