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Geological Society of America Bulletin, 1954
Vigorous attack is currently being made on glacier flow by field studies, laboratory investigations, and theoretical analyses. Knowledge of the physical properties and behavior of ice deep within glaciers remains unsatisfactory, because laboratory experiments do not reproduce the relations of time and temperature existing in the natural environment. It
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Vigorous attack is currently being made on glacier flow by field studies, laboratory investigations, and theoretical analyses. Knowledge of the physical properties and behavior of ice deep within glaciers remains unsatisfactory, because laboratory experiments do not reproduce the relations of time and temperature existing in the natural environment. It
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Effects of Basal Debris on Glacier Flow
Science, 2003Glacier movement is resisted partially by debris, either within glaciers or under glaciers in water-saturated layers. In experiments beneath a thick, sliding glacier, ice containing 2 to 11% debris exerted shear traction of 60 to 200 kilopascals on a smooth rock bed, comparable to the total shear traction beneath glaciers and contrary to the usual ...
Neal R, Iverson +7 more
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Proceedings of the Physical Society, 1940
The internal mechanism of glacier flow has been studied by examining the crystal textures of samples of snow and ice from different parts of Alpine glaciers, and by taking strain-measurements within the glaciers themselves. The results show that under the influence of glacier flow firn, a compacted snow covering the upper regions of glaciers, is ...
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The internal mechanism of glacier flow has been studied by examining the crystal textures of samples of snow and ice from different parts of Alpine glaciers, and by taking strain-measurements within the glaciers themselves. The results show that under the influence of glacier flow firn, a compacted snow covering the upper regions of glaciers, is ...
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Flow Mechanism of Glaciers on Soft Beds
Science, 1995Subhourly measurements of bed deformation, bed shear strength, subglacial water pressure, and surface speed at Storglaciären, a glacier in northern Sweden, showed that the shear-strain rates of the bed decrease during periods of high water pressure and surface speed.
N R, Iverson +3 more
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The physics of the flow of glaciers
Physics Bulletin, 1967Glaciers are among the most striking features of the scenery of high mountainous regions and in high latitudes, and the fact that the ice of which they are composed flows downhill has long been known. However, the detailed mechanisms by which this happens are still not entirely understood: for example, there is still speculation about the causes of ...
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A model for the flow of rock glaciers
International Journal of Non-Linear Mechanics, 2013Abstract A constitutive model is developed for describing the response of rock glaciers that takes into account the effect of the shear rate, pressure and the volume fraction of the rocks and sand grains trapped within the interstices of the rock glacier on the viscosity of the rock glacier.
K. Kannan, K.R. Rajagopal
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2009
As mentioned in the introduction (Chapter 1), the size of land ice masses spans several orders of magnitude, from large ice sheets of a few thousand kilometres in diameter down to small glaciers of a few hundreds of metres in length. Consequently, the scaling given for ice sheets in Chapter 5 [Eqs.
Ralf Greve, Heinz Blatter
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As mentioned in the introduction (Chapter 1), the size of land ice masses spans several orders of magnitude, from large ice sheets of a few thousand kilometres in diameter down to small glaciers of a few hundreds of metres in length. Consequently, the scaling given for ice sheets in Chapter 5 [Eqs.
Ralf Greve, Heinz Blatter
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Journal of Applied Physics, 1956
The mass of ice varies along the length of a glacier because of the accumulation of snow in its upper regions and the ablation of ice in the lower regions. This mass change brings about variable speeds of flow and complex streamlines. General equations are derived using a type of plug flow for ice for the following: (1) glaciers of constant arbitrarily
Lawrence E. Nielsen, F. D. Stockton
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The mass of ice varies along the length of a glacier because of the accumulation of snow in its upper regions and the ablation of ice in the lower regions. This mass change brings about variable speeds of flow and complex streamlines. General equations are derived using a type of plug flow for ice for the following: (1) glaciers of constant arbitrarily
Lawrence E. Nielsen, F. D. Stockton
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