Changes in microstructure of snow under large deformations [PDF]
AbstractA set of microstructural variables is selected to characterize the behavior of snow. Corresponding mathematical relations from quantitative stereology theory are presented along with relations and techniques required for numerical evaluation. An experimental investigation is carried out to determine changes in these variables for snow subjected
Michael Q. Edens, Robert L. Brown
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Tomography-based monitoring of isothermal snow metamorphism under advective conditions [PDF]
Time-lapse X-ray microtomography was used to investigate the structural dynamics of isothermal snow metamorphism exposed to an advective airflow. The effect of diffusion and advection across the snow pores on the snow microstructure were analysed in ...
P. P. Ebner, M. Schneebeli, A. Steinfeld
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EVOLUTIONARY CONCEPTION OF SNOW METAMORPHISM BASED ON CRYSTAL-MORPHOLOGY AND THEORY OF SYMMETRY
The paper presents a novel approach to the study of development of microstructures in snowpack based on the crystal-morphology and on the fundamental laws of natural symmetry.
E. G. Kolomyts
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Vapor flux and recrystallization during dry snow metamorphism under a steady temperature gradient as observed by time-lapse micro-tomography [PDF]
Dry snow metamorphism under an external temperature gradient is the most common type of recrystallization of snow on the ground. The changes in snow microstructure modify the physical properties of snow, and therefore an understanding of this process is ...
B. R. Pinzer +2 more
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A novel method to visualize liquid distribution in snow: superimposition of MRI and X-ray CT images
The relationship between the behavior of water in snow and its microstructure is crucial to improve the prediction of wet snow disasters. X-ray computed tomography (X-ray CT) is frequently used to observe snow microscopically.
Satoru Yamaguchi +2 more
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Spectral reflectance behavior of different boreal snow types
Spectral reflectance of natural snow samples representing various stratigraphies was investigated in a controlled dark laboratory environment. Mean and Std dev.
Henna-Reetta Hannula, Jouni Pulliainen
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Influence of Microstructure on Mechanical Properties of Snow
Snow, being composed of ice grains of varying shapes, sizes, orientations, etc., has been treated as a particulate material. The mechanical properties of snow have been described in terms of microstructural parameters. A set of variables, which characterise the microstructure of snow at the granular level, has been chosen and quantified following ...
K.C. Agrawal, R.K. Mittal
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Comparing measurements of snow mechanical properties relevant for slab avalanche release
Snow properties relevant to the fracture processes involved in dry-snow slab avalanche release include weak layer specific fracture energy, slab elastic modulus and density.
BENJAMIN REUTER +4 more
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Exploring the potential of forest snow modeling at the tree and snowpack layer scale [PDF]
Boreal and sub-alpine forests host seasonal snow for multiple months per year; however, snow regimes in these environments are rapidly changing due to rising temperatures and forest disturbances.
G. Mazzotti +7 more
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Studying Snow Failure With Fiber Bundle Models
Snow is a highly porous material with properties that may strongly differ depending on the environmental conditions. On slopes, the layered snowpack may fail and avalanches occur.
Achille Capelli +2 more
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