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Linking snow optical properties to snow microstructure
2022<p><span>Snow plays a crucial role in the climate system, as its </span><span>high albedo is</span><span> unique among the Earth&#8217;s surface materials. </span><span>S</span><span>everal microstructural ...
Alvaro Robledano +4 more
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Understanding Snow Microstructure for Microwave Remote Sensing [PDF]
Eos, 2014 Scientists from the snow and soil remote sensing communities met to build on recent developments in objective snow microstructure measurement techniques by improving the understanding of their application in remote sensing at microwave frequencies.
NicK Rutter
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Feature extraction on digital snow microstructures
ACM SIGGRAPH 2015 Posters, 2015During a snowfall, the snow crystals accumulate on the ground and gradually form a complex porous medium constituted of air, water vapour, ice and sometimes liquid water. This ground-lying snow transforms with time, depending on the physical parameters of the environment. The main purpose of the digitalSnow project is to provide efficient computational
Levallois, Jérémy +2 more
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Microstructure and sound absorption of snow
Cold Regions Science and Technology, 2012Abstract Sound absorption of snow was measured for test specimens with porosities in the range from 46% to approximately 90% in an impedance tube at frequencies between 125 Hz and 1.6 kHz. In addition, the geometrical structure of the same samples was determined by X-ray microtomography.
W. Maysenhölder +5 more
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The importance of snow microstructure: An analysis of snow compressive strength under high strain
Cold Regions Science and TechnologyZoe Courville, Taylor Hodgdon
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Modeling the changes in microstructure of snow during metamorphism
Cold Regions Science and Technology, 2001Since the internal microstructure is important for determining the mechanical, thermal and physical properties of snow, a study was undertaken to develop a physical model that can predict changes in microstructure of snow during metamorphism. The microstructure was defined in terms of the 3-D coordination number, mean grain size, mean bond radius and ...
R L Brown +2 more
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Multiscale tomography of the seasonal evolution of the snow microstructure
2022<div> <div> <div> <p>Due to very active metamorphism, snow on the ground exhibits a wide range of microstructural patterns. Indeed, snow is a very porous material and it exists on Earth close to its melting point, which promotes its structural evolution through vapor transport and melting ...
Pascal Hagenmuller +5 more
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Influence of Microstructure on the Consolidation of Compressed Snow
Journal of Cold Regions Engineering, 2015AbstractSnow falling on roads is rapidly compacted into a hard crust which is difficult to remove, and which may become slippery at temperatures near melting. To avoid this, chemicals are often spread in a measure called anticompaction to keep the snow plowable until it can be removed by highway maintenance personnel.
Johan Wåhlin, Alex Klein-Paste
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Microstructural resistance of snow following first wetting
Cold Regions Science and Technology, 2011Abstract One of the main causes for the formation of wet snow avalanches is the decrease in strength following the introduction of liquid water. The influence of liquid water on initially dry snow was investigated in twelve field experiments in the Eastern Swiss Alps.
F. Techel, C. Pielmeier, M. Schneebeli
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A unified framework for computational microstructure-based snow mechanics
2021<p>The effective mechanical behavior of snow can be deduced from microstructural homogenization through numerical simulations. Although such numerical upscaling of elasticity and strength of snow microstructures is standard (using FEM), numerical schemes to study generic features of the transition from small to large strain situations ...
Lars Blatny +3 more
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