Results 51 to 60 of about 279,650 (230)
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
, 2001 Abstract Avalanches have long been a natural threat to humans in mountainous areas. At the end of the Middle Ages, the population in Europe experienced significant growth, leading to an intensive exploitation of upper valleys. At almost the same time, Europe’s climate cooled down considerably and severe winters became more common.
openaire +3 more sources
Configurational energy and the formation of mixed flowing/powder snow and ice avalanches
Annals of Glaciology, 2016 A long-standing problem in avalanche dynamics is to model the flow of a mixed flowing/powder avalanche. Here we use the thermodynamic concept of configurational energy to describe the blow-out of air from the avalanche core. Configurational energy is the
Perry Bartelt +3 more
doaj +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.This study demonstrates that not just Airborne Laser Scanning, but also Sentinel‐2 can effectively estimate absolute canopy cover and canopy cover heterogeneity ‐ structural metrics that determine the subcanopy light regime, found to be linked to the vascular plant species richness in the understory of temperate mountain forests.
Felix Wieland‐Glasmann +4 more
wiley +1 more source
Temporal evolution of crack propagation propensity in snow in relation to slab and weak layer properties [PDF]
The Cryosphere, 2016 If a weak snow layer below a cohesive slab is present in the snow cover, unstable snow conditions can prevail for days or even weeks. We monitored the temporal evolution of a weak layer of faceted crystals as well as the overlaying slab layers at the ...
J. Schweizer +4 more
doaj +1 more source
Sustainable Development, EarlyView.ABSTRACT Risk management has evolved to analyze risks in a systemic way, integrating local knowledge with the abstract concept of resilience, which is now an imperative for vulnerable and exposed communities. However, existing decision‐support tools are mainly focused on technical‐functional aspects and, although based on rigorous and scientific ...
Pascal Emanuel Egli +10 more
wiley +1 more source
Glide-snow avalanche characteristics at different timescales extracted from time-lapse photography
Annals of GlaciologyGlide-snow avalanches release due to a loss of friction at the snow–ground interface, which can result in large avalanches that endanger infrastructure in alpine regions.
Amelie Fees +4 more
doaj +1 more source
Exploring how Sentinel-1 wet-snow maps can inform fully distributed physically based snowpack models [PDF]
The CryosphereDistributed energy and mass balance snowpack models at sub-kilometric scale have emerged as a tool for snow-hydrological forecasting over large areas.
B. Cluzet +6 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
Thermal energy in dry snow avalanches [PDF]
The Cryosphere, 2015 Avalanches can exhibit many different flow regimes from powder clouds to slush flows. Flow regimes are largely controlled by the properties of the snow released and entrained along the path. Recent investigations showed the temperature of the moving snow
W. Steinkogler, B. Sovilla, M. Lehning
doaj +1 more source