Microstructure-based modeling of snow mechanics: a discrete element approach [PDF]
The Cryosphere, 2015 Rapid and large deformations of snow are mainly controlled by grain rearrangements, which occur through the failure of cohesive bonds and the creation of new contacts. We exploit a granular description of snow to develop a discrete element model based on
P. Hagenmuller, G. Chambon, M. Naaim
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Sodankylä manual snow survey program [PDF]
Geoscientific Instrumentation, Methods and Data Systems, 2016 The manual snow survey program of the Arctic Research Centre of the Finnish Meteorological Institute (FMI-ARC) consists of numerous observations of natural seasonal taiga snowpack in Sodankylä, northern Finland.
L. Leppänen +4 more
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Enhancing simulations of snowpack properties in land surface models with the Soil, Vegetation and Snow scheme v2.0 (SVS2) [PDF]
Geoscientific Model DevelopmentSnow microstructure – characterized by density, grain size, grain shape and arrangement – fundamentally determines snowpack macroscopic properties.
V. Vionnet +14 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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Early-stage interaction between settlement and temperature-gradient metamorphism
Journal of Glaciology, 2017 Snow metamorphism and settlement change the microstructure of a snowpack simultaneously. Past experiments investigated snow deformation under isothermal conditions. In nature, temperature gradient metamorphism and settlement often occur together.
MAREIKE WIESE, MARTIN SCHNEEBELI
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A general treatment of snow microstructure exemplified by an improved relation for thermal conductivity [PDF]
The Cryosphere, 2013 Finding relevant microstructural parameters beyond density is a longstanding problem which hinders the formulation of accurate parameterizations of physical properties of snow.
H. Löwe, F. Riche, M. Schneebeli
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EVOLUTIONARY CONCEPTION OF SNOW METAMORPHISM BASED ON CRYSTAL-MORPHOLOGY AND THEORY OF SYMMETRY
Лëд и снег, 2015 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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Tomography-based monitoring of isothermal snow metamorphism under advective conditions [PDF]
The Cryosphere, 2015 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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A novel method to visualize liquid distribution in snow: superimposition of MRI and X-ray CT images
Annals of GlaciologyThe 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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Dependence of thermal conductivity of snow on microstructure
Journal of Earth System Science, 2008 A geometrical model, including different geometrical shapes influencing thermal conductivity of snow is proposed. The geometrical model has been assumed to comprise of unit cells having solid (ice) inclusion as an aggregation of spherical, cylindrical or cubical shapes with vertical connection, arranged in a cubic packing.
P. K. Satyawali, A. K. Singh
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