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Canadian Journal of Earth Sciences, 1969 Propagation of glacier surges has been discussed in terms of stresses acting in the three major zones of the surge. The steeply sloping front of a surge appears sufficient to explain the thickening of a glacier and the rise in velocity of ice motion which takes place across this zone in terms of accepted stress–strain rate data for ice. Explanation of
G. de Q. Robin, P. Barnes
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Glacier surges in Iceland, with special reference to the surges of Brúarjökull
Canadian Journal of Earth Sciences, 1969 The glacier surges that have occurred in Iceland since 1890 are listed, and the largest ones, those of Brúarjökull in 1890 and 1963–64, are described. The glacier area affected by the surges of Brúarjökull is about 1400 km2, the volume of ice and firn ...
Sigurdur Thorarinsson
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Glacier Surge Mechanism: 1982-1983 Surge of Variegated Glacier, Alaska
Science, 1985The hundredfold speedup in glacier motion in a surge of the kind that took place in Variegated Glacier in 1982-1983 is caused by the buildup of high water pressure in the basal passageway system, which is made possible by a fundamental and pervasive change in the geometry and water-transport characteristics of this system.
Kamb, Barclay +7 more
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Modeling Periodically Surging Glaciers
Science, 1974A numerical model has been developed which produces periodic surging as a characteristic of some glaciers for a certain accumulation and bedrock distribution in contrast to the normal steady state for nonsurging glaciers. Results are presented to illustrate how the magnitude of changes in the length, thickness, and velocity of surging glaciers can be ...
W F, Budd, B J, McInnes
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Canadian Journal of Earth Sciences, 1969
A total of 204 surging glaciers has been identified in western North America. These glaciers surge repeatedly and probably with uniform periods (from about 15 to greater than 100 years). Ice flow rates during the active phase may range from about 150 m/year to > 6 km/year, and horizontal displacements may range from < 1 to > 11 km.
Mark F. Meier, Austin Post
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A total of 204 surging glaciers has been identified in western North America. These glaciers surge repeatedly and probably with uniform periods (from about 15 to greater than 100 years). Ice flow rates during the active phase may range from about 150 m/year to > 6 km/year, and horizontal displacements may range from < 1 to > 11 km.
Mark F. Meier, Austin Post
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Glacier surges and glacial disasters
Doklady Earth Sciences, 2017Based on complex analysis of the latest data, new conclusions have been reached about the features and causes of glacial disasters.
V. M. Kotlyakov +3 more
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Journal of Geophysical Research: Solid Earth, 1987
We propose a model of glacier flow that is capable of explaining temperate glacier surges. The laws of conservation of mass and momentum are supplemented by the prescription of a sliding law that gives the basal shear stress τ as a function of the basal velocity u and the effective pressure N. The effective drainage pressure N is determined by a simple
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We propose a model of glacier flow that is capable of explaining temperate glacier surges. The laws of conservation of mass and momentum are supplemented by the prescription of a sliding law that gives the basal shear stress τ as a function of the basal velocity u and the effective pressure N. The effective drainage pressure N is determined by a simple
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Characteristics of surge‐type glaciers
Journal of Geophysical Research: Solid Earth, 1986Glaciers can be divided into two classes according to their flow behavior: normal (relatively steady annually averaged flow rate) and surge‐type (pronounced cyclic flow variations having a typical periodicity of 10–100 years). We have examined the population statistics of 2356 glaciers in the St.
Garry K. C. Clarke +3 more
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2013
The Karakoram is one of a relatively few mountain regions with high numbers of surge-type glaciers, subject to sudden, short-lived accelerations that transfer large volumes of ice down glacier. Some 55 surges have been identified since the 1860s involving 46 glaciers.
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The Karakoram is one of a relatively few mountain regions with high numbers of surge-type glaciers, subject to sudden, short-lived accelerations that transfer large volumes of ice down glacier. Some 55 surges have been identified since the 1860s involving 46 glaciers.
openaire +1 more source