Results 21 to 30 of about 3,014 (298)
The mechanism of sliding on ice and snow [PDF]
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1939 Abstract The preceding paper has shown that the sliding friction bet ween metals decreases in a regular manner as the temperature is raised, provided that the chemical nature of the surface layers remains unchanged. The behaviour of the friction at temperatures near the melting-point was not investigated.
Frank Philip Bowden, T. P. Hughes
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Wind conditions for snow cornice formation in a wind tunnel [PDF]
The Cryosphere, 2023 Snow cornices growing on the leeward side of mountain ridges are common in alpine and polar regions during snow seasons. These structures may crack and fall, leading to an increase in avalanche danger. Although cornice formation has been observed in wind
H. Yu +8 more
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Fuzzy modelling of powder snow avalanches [PDF]
, 2004 This paper examines powder snow avalanches by introducing a predetermined degree of variation, or fuzziness, in model parameters. Given a value of vagueness in the parameters, fuzzy set theory makes it possible to evaluate the vagueness in the results ...
Barpi, Fabrizio
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Acoustic emission signatures prior to snow failure
Journal of Glaciology, 2018 Snow slab avalanches are caused by cracks forming and propagating in a weak snow layer below a cohesive slab. The gradual damage process leading to the formation of the initial failure within the weak layer (WL) is still not entirely understood.
ACHILLE CAPELLI +2 more
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Different erosion and entrainment mechanisms in snow avalanches
, 2022 Erosion significantly affects the dynamics of gravity-driven mass flows. In snow avalanches, the snow cover can be substantially eroded but only partially entrained, however, there are very limited investigations to substantiate this difference. Here, we
Gaume, Johan; id_orcid +10 more
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Mechanism and effects of snow accumulations and controls by lightweight snow fences [PDF]
Journal of Modern Transportation, 2016 This paper investigates the snowdrifts caused by lightweight fences along the lines on the flatland through the computational fluid dynamics method. The characteristic ambient flows around the solid fences and the porous fences with varied heights and bottom wind gaps are simulated in the numerical model, and the working mechanism of “interception” and
Liu, Duote +4 more
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Journal of Glaciology, 2017 The instrumented sample holder Snowbreeder 5 is used to investigate the simultaneous influence of settlement on temperature-gradient snow metamorphism in time-lapse micro-computed tomography experiments.
MAREIKE WIESE, MARTIN SCHNEEBELI
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Seismic observations of a complex firn structure across the Amery Ice Shelf, East Antarctica
Journal of Glaciology, 2021 We use seismic refraction data to investigate the firn structure across a suture zone on the Amery Ice Shelf, East Antarctica, and the possible role of glacier dynamics in firn evolution.
Hannes Hollmann +4 more
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Numerical study of fracture arrest on snow cover
Fracture and Structural Integrity, 2013 Under the hypothesis of a perfectly brittle phenomenon, avalanche triggering can be investigated numerically by means of Linear Elastic Fracture Mechanics (LEFM).
B. M. Chiaia, B. Frigo
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The effect of propagation saw test geometries on critical cut length [PDF]
Natural Hazards and Earth System SciencesFor a slab avalanche to release, a crack in a weak snow layer beneath a cohesive snow slab has to initiate and propagate. Information on crack propagation is essential for assessing avalanche triggering potential.
B. Bergfeld +5 more
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