Unraveling the optical shape of snow
The reflection of sunlight off the snow is a major driver of the Earth's climate. This reflection is
governed by the shape and arrangement of ice crystals at the micrometer scale, called snow …
governed by the shape and arrangement of ice crystals at the micrometer scale, called snow …
Microstructure-based modeling of snow mechanics: a discrete element approach
P Hagenmuller, G Chambon, M Naaim - The Cryosphere, 2015 - tc.copernicus.org
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 …
occur through the failure of cohesive bonds and the creation of new contacts. We exploit a …
Microwave scattering coefficient of snow in MEMLS and DMRT-ML revisited: the relevance of sticky hard spheres and tomography-based estimates of stickiness
The description of snow microstructure in microwave models is often simplified to facilitate
electromagnetic calculations. Within dense media radiative transfer (DMRT), the …
electromagnetic calculations. Within dense media radiative transfer (DMRT), the …
Sensitivity of snow density and specific surface area measured by microtomography to different image processing algorithms
P Hagenmuller, M Matzl, G Chambon… - The …, 2016 - tc.copernicus.org
Microtomography can measure the X-ray attenuation coefficient in a 3-D volume of snow
with a spatial resolution of a few microns. In order to extract quantitative characteristics of the …
with a spatial resolution of a few microns. In order to extract quantitative characteristics of the …
Angle of repose experiments with snow: role of grain shape and cohesion
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 …
role of grain shape and cohesion in angle of repose experiments, which are a common …
Snow failure modes under mixed loading
T Mede, G Chambon, P Hagenmuller… - Geophysical Research …, 2018 - Wiley Online Library
The mechanical response of snow to mixed‐mode shear and normal loading is the key
ingredient for snow avalanche modeling and strongly depends on microstructural …
ingredient for snow avalanche modeling and strongly depends on microstructural …
Modeling of dry snow adhesion during normal impact with surfaces
T Eidevåg, P Abrahamsson, M Eng, A Rasmuson - Powder Technology, 2020 - Elsevier
Contamination due to dry snow smoke adhesion is an evident danger for sensor blinding on
future autonomous driving cars under winter road conditions. This paper examines at what …
future autonomous driving cars under winter road conditions. This paper examines at what …
A discrete element framework for modeling the mechanical behaviour of snow—Part I: Mechanical behaviour and numerical model
A framework for investigating the mechanics of snow is proposed based on an advanced
micro-scale approach. Varying strain rates, densities and temperatures are taken into …
micro-scale approach. Varying strain rates, densities and temperatures are taken into …
A medial axis based method for irregular grain shape representation in DEM simulations
This paper describes a novel method for representing arbitrary grain shapes in discrete
element method (DEM) simulations. The method takes advantage of the efficient sphere …
element method (DEM) simulations. The method takes advantage of the efficient sphere …
Microstructure-based simulations of the viscous densification of snow and firn
Accurate models for the viscous densification of snow (understood here as a density below
550 kg m-3) and firn (a density above 550 kg m-3) under mechanical stress are of primary …
550 kg m-3) and firn (a density above 550 kg m-3) under mechanical stress are of primary …