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Snow physics as relevant to snow photochemistry [PDF]

open access: yesAtmospheric Chemistry and Physics, 2008
Snow on the ground is a complex multiphase photochemical reactor that dramatically modifies the chemical composition of the overlying atmosphere. A quantitative description of the emissions of reactive gases by snow requires knowledge of snow physical ...
F. Domine   +7 more
doaj   +6 more sources

The physics of snow crystals [PDF]

open access: yesReports on Progress in Physics, 2005
We examine the physical mechanisms governing the formation of snow crystals, treating this problem as a case study of the dynamics of crystal growth from the vapour phase. Particular attention is given to the basic theoretical underpinnings of the subject, especially the interplay of particle diffusion, heat diffusion and surface attachment kinetics ...
Kenneth G Libbrecht
exaly   +3 more sources

Enabling Advanced Snow Physics Within Land Surface Models Through an Interoperable Model‐Physics Coupling Framework

open access: yesJournal of Advances in Modeling Earth Systems
Accurate estimation of snow accumulation and melt is a critical part of decision‐making in snow‐dominated watersheds. In this study, we demonstrate a flexible methodology to couple a detailed snow model, Crocus, separately to two different land surface ...
Mahdi Navari   +6 more
doaj   +2 more sources

A casting method using contrast-enhanced diethylphthalate for micro-computed tomography of snow

open access: yesJournal 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

Disentangling creep and isothermal metamorphism during snow settlement with X-ray tomography

open access: yesJournal 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

The Snow-Friction of Freestyle Skis and Snowboards Predicted From Snow Physical Quantities [PDF]

open access: yesFrontiers in Mechanical Engineering, 2021
Previous research has shown that friction between ski and snow can vary substantially due to changes in snow conditions. The variation of friction affects the speed a freestyle skier or snowboarder (athlete) reaches during the in-run of a jump. Athletes risk severe injuries if their take-off speed is not within the right margin to land in the “sweet ...
Fabian Wolfsperger   +4 more
openaire   +3 more sources

Porosity dependence of elastic moduli of snow and firn

open access: yesJournal of Glaciology, 2021
Measurements of elastic wave velocities enable non-destructive estimation of the mechanical properties, elastic moduli and density of snow and firn.
Colin M. Sayers
doaj   +1 more source

Operational snow-hydrological modeling for Switzerland

open access: yesFrontiers in Earth Science, 2023
The seasonal evolution of snow cover has significant impacts on the hydrological cycle and microclimate in mountainous regions. However, snow processes also play a crucial role in triggering alpine mass movements and flooding, posing risks to people and ...
Rebecca Mott   +12 more
doaj   +1 more source

On the use of heated needle probes for measuring snow thermal conductivity

open access: yesJournal of Glaciology, 2022
Heated needle probes provide the most convenient method to measure snow thermal conductivity. Recent studies have suggested that this method underestimates snow thermal conductivity; however the reasons for this discrepancy have not been elucidated.
Kévin Fourteau   +3 more
doaj   +1 more source

Snowbreeder 5: a Micro-CT device for measuring the snow-microstructure evolution under the simultaneous influence of a temperature gradient and compaction

open access: yesJournal 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
doaj   +1 more source

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