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Microstructure representation of snow in coupled snowpack and microwave emission models [PDF]
The Cryosphere, 2017 This is the first study to encompass a wide range of coupled snow evolution and microwave emission models in a common modelling framework in order to generalise the link between snowpack microstructure predicted by the snow evolution models and ...
M. Sandells +5 more
doaj +1 more source
Disentangling creep and isothermal metamorphism during snow settlement with X-ray tomography
Journal of Glaciology, 2023 Once fallen, snow settles due to the combined effects of metamorphism and deformation of the ice matrix under gravity. To understand how these coupled processes affect snow evolution, we performed oedometric compression tests and continuously monitored ...
Antoine Bernard +3 more
doaj +1 more source
MULTI-SCALE MODELLING OF SNOW MICROSTRUCTURE [PDF]
International Journal for Multiscale Computational Engineering, 2013 A three-dimensional multiscale spatial model of snow with evolving microstructure is presented. Many engineering and environmental problems require a comprehensive understanding of snow behavior which arises as a consequence of phenomena spanning a wide spectrum of spatial length scales.
A. Carbone +3 more
semanticscholar +4 more sources
Convection of snow: when and why does it happen?
Frontiers in Earth Science, 2023 Convection of water vapor in snowpacks is supposed to have a major impact on snow density and microstructure profiles with strong implications for the thermal regime and snow stability.
Mahdi Jafari +3 more
doaj +1 more source
"El nen s'ha menjat una aranya": The development of narratives in Catalan speaking children [PDF]
, 2020 The production of a well-constructed narrative is the culmination of several years of language acquisition and is an important milestone in children's development.
Anna JONES +22 more
core +1 more source
Angle of repose experiments with snow: role of grain shape and cohesion
Journal 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
A microstructure-based constitutive law for snow [PDF]
Annals of Glaciology, 1993 A constitutive theory of snow is developed to describe the mechanical properties of snow in terms of the properties of the ice grains and the necks that interconnect them. The principle of virtual work is used to calculate the stresses in the particles and necks.
Puneet Mahajan, Robert L. Brown
openaire +1 more source
Derivation and evaluation of a new extinction coefficient for use with the n-HUT snow emission model [PDF]
, 2019 In this study, snow slab data collected from the Arctic Snow Microstructure Experiment were used in conjunction with a six-directional flux coefficient model to calculate individual slab absorption and scattering coefficients.
Gurney, Robert +9 more
core +3 more sources
Anisotropy of seasonal snow measured by polarimetric phase differences in radar time series [PDF]
The Cryosphere, 2016 The snow microstructure, i.e., the spatial distribution of ice and pores, generally shows an anisotropy which is driven by gravity and temperature gradients and commonly determined from stereology or computer tomography.
S. Leinss +5 more
doaj +1 more source