Results 11 to 20 of about 3,014 (298)

The mechanics of snow friction as revealed by micro-scale interface observations

open access: yesJournal of Glaciology, 2018
The mechanics of snow friction are central to competitive skiing, safe winter driving and efficient polar sleds. For nearly 80 years, prevailing theory has postulated that self-lubrication accounts for low kinetic friction on snow: dry-contact sliding ...
JAMES H. LEVER   +5 more
doaj   +2 more sources

Antarctic Snow Failure Mechanics: Analysis, Simulations, and Applications. [PDF]

open access: yesMaterials (Basel)
Snow failure is the process by which the stability of snow or snow-covered slopes is destroyed, resulting in the collapse or release of snow. Heavy snowfall, low temperatures, and volatile weather typically cause consequences in Antarctica, which can ...
Xiao E   +4 more
europepmc   +2 more sources

Probabilistic size effect law for mode II fracture from critical lengths in snow slab avalanche weak layers

open access: yesJournal of Glaciology, 2019
From field observations, dry snow slab avalanche initiation is associated with fracture within relatively thin weak layers under stronger, cohesive slabs.
D. M. McCLUNG, C. P. BORSTAD
doaj   +1 more source

Angle of repose experiments with snow: role of grain shape and cohesion

open access: yesJournal of Glaciology, 2020
Snow appears as a granular material in most engineering applications. We examined the role of grain shape and cohesion in angle of repose experiments, which are a common means for the characterization of granular materials. The role of shape was examined
Carolin Willibald   +4 more
doaj   +1 more source

Snow mechanics

open access: yesEos, Transactions American Geophysical Union, 1974
The International Symposium on Snow Mechanics was held April 1–5, 1974, in Grindelwald, Switzerland, under the sponsorship of the International Association of Hydrological Science.The conference, organized by the International Commission on Snow and Ice, attracted participants from a number of countries to discuss the physical and mechanical ...
Samuel C. Colbeck, R. I. Perla
openaire   +1 more source

Detrainment and braking of snow avalanches interacting with forests [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2022
Mountain forests provide natural protection against avalanches. They can both prevent avalanche formation in release zones and reduce avalanche mobility in runout areas.
L. Védrine   +4 more
doaj   +1 more source

Heterogeneous grain growth and vertical mass transfer within a snow layer under a temperature gradient [PDF]

open access: yesThe Cryosphere, 2023
Inside a snow cover, metamorphism plays a key role in snow evolution at different scales. This study focuses on the impact of temperature gradient metamorphism on a snow layer in its vertical extent.
L. Bouvet   +4 more
doaj   +1 more source

Intercomparison of snow density measurements: bias, precision, and vertical resolution [PDF]

open access: yes, 2016
Density is a fundamental property of porous media such as snow. A wide range of snow properties and physical processes are linked to density, but few studies have addressed the uncertainty in snow density measurements.
C. Fierz   +7 more
core   +1 more source

Snow-Collection Mechanisms and the Capacities of Snow Fences [PDF]

open access: yesAnnals of Glaciology, 1989
The shapes of equilibrium lee drifts formed by snow fences are scaled in proportion to height of snow fences independent of the snow and weather conditions, even in small-scale models, but those of up-wind drifts are not.Field studies have been made of the snow-collection mechanisms of a snow fence.
openaire   +1 more source

Avalanche dynamics by Newton. Reply to comments on avalanche flow models based on the concept of random kinetic energy

open access: yesJournal of Glaciology, 2018
The critique by Issler and other (2017) of our avalanche dynamics model maintains that we disregard well-established results of particulate gravity flows.
PERRY BARTELT, OTHMAR BUSER
doaj   +1 more source

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