Multiscale 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.
CARBONE, ANNA FILOMENA +3 more
core +4 more sources
A casting method using contrast-enhanced diethylphthalate for micro-computed tomography of snow
Journal of Glaciology, 2021 Casting snow is necessary to prevent metamorphism and deformation prior to X-ray micro-computed tomography (μCT) imaging. Current methods are insufficient for large-scale field sampling of snow due to safety considerations associated with the casting ...
Michael Lombardo +2 more
doaj +1 more source
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
SMRT: an active–passive microwave radiative transfer model for snow with multiple microstructure and scattering formulations (v1.0) [PDF]
Geoscientific Model Development, 2018 The Snow Microwave Radiative Transfer (SMRT) thermal emission and backscatter model was developed to determine uncertainties in forward modeling through intercomparison of different model ingredients.
G. Picard, M. Sandells, H. Löwe
doaj +1 more source
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
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
Intercomparison of snow density measurements: bias, precision, and vertical resolution [PDF]
, 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 +2 more sources
On the saltation of fresh snow in a wind tunnel: profile characterization and single particle statistics [PDF]
, 2008 We present experimental results on the snow drift in a turbulent boundary layer over a flat fresh snow-covered surface. Vertical profiles of mass flux and of the distribution of particle diameters were obtained by means of a pair of Snow Particle ...
Manes, C. +7 more
core +1 more source
Snow stratigraphic heterogeneity within ground-based passive microwave radiometer footprints: implications for emission modeling [PDF]
, 2014 Two-dimensional measurements of snowpack properties (stratigraphic layering, density, grain size and temperature) were used as inputs to the multi-layer Helsinki University of Technology (HUT) microwave emission model at a centimeter-scale horizontal ...
Sandells, Melody +7 more
core +1 more source