• No results found

Snow avalanches

Assessing fragility of a reinforced concrete element to snow avalanches using a non-linear dynamic mass-spring model

Assessing fragility of a reinforced concrete element to snow avalanches using a non-linear dynamic mass-spring model

... curves have been established for snow avalanches. Indeed, most studies have been dedicated to vulnerability curves (Papathoma-Köhle et al., 2011). Existing vulnerability and fragility relations were mostly ...

18

Soil erosion and organic carbon export by wet snow avalanches

Soil erosion and organic carbon export by wet snow avalanches

... of snow cover in potentially modulating these rates (Stanchi et ...2014). Snow avalanching in par- ticular is an important and seasonally recurring process in many high-altitude and high-latitude ...on ...

8

Modelling the system behaviour of wet snow avalanches using an expert system approach for risk management on high alpine traffic roads

Modelling the system behaviour of wet snow avalanches using an expert system approach for risk management on high alpine traffic roads

... wet snow avalanches during the winter on a re- gional ...“wet snow avalanche” was used for wet slab avalanches, which are not triggered by the loading of new ...Loose snow ...

12

Cold-to-warm flow regime transition in snow avalanches

Cold-to-warm flow regime transition in snow avalanches

... Large avalanches usually encounter different snow conditions along their ...slab avalanches comprising cold snow, they can subsequently de- velop into powder snow avalanches ...

16

On the complementariness of infrasound and seismic sensors for monitoring snow avalanches

On the complementariness of infrasound and seismic sensors for monitoring snow avalanches

... turbulent snow air flow (powder cloud) and that the sound intensity emitted is proportional to the eighth power of the flow velocity, as proposed by Lighthill ...

16

Snow gliding and glide-snow avalanches: recent outcomes from two experimental test sites in Aosta Valley (northwestern Italian Alps)

Snow gliding and glide-snow avalanches: recent outcomes from two experimental test sites in Aosta Valley (northwestern Italian Alps)

... the snow cover and the related processes, leading to a reduction of dry snowpacks and an increase in wet ones (Castebrunet et ...studied snow gliding and glide-snow avalanches – see review ...

10

Seismic location and tracking of snow avalanches  and slush flows on Mt. Fuji, Japan

Seismic location and tracking of snow avalanches and slush flows on Mt. Fuji, Japan

... dry-snow avalanches, characterized by the typical powder cloud that usually hides a dense-flow region, to wet-snow avalanches that are char- acterized by a slower, plug-like ...water-saturated ...

19

Physical vulnerability of reinforced concrete buildings impacted by snow avalanches

Physical vulnerability of reinforced concrete buildings impacted by snow avalanches

... to snow avalanche ...by snow avalanches are carried ...under snow avalanche ...its snow avalanches ...a snow avalanche ...

15

Validating numerical simulations of snow avalanches using dendrochronology: the Cerro Ventana event in Northern Patagonia, Argentina

Validating numerical simulations of snow avalanches using dendrochronology: the Cerro Ventana event in Northern Patagonia, Argentina

... by snow avalanches to prop- erty and human lives is underestimated in many regions around the world, especially where this natural hazard re- mains poorly ...the snow height deposition in the run-out ...

11

Dendrogeomorphology and high-magnitude snow avalanches: a review and case study

Dendrogeomorphology and high-magnitude snow avalanches: a review and case study

... and snow avalanches there frequently disrupt highway and rail traffic on US High- way 2 (US 2), and the Burlington Northern – Santa Fe Rail- road (BNSF) (Butler and Malanson, 1985; Butler 1986b, 1987b; ...

7

Infrasound array criteria for automatic detection and front velocity estimation of snow avalanches: towards a real-time early-warning system

Infrasound array criteria for automatic detection and front velocity estimation of snow avalanches: towards a real-time early-warning system

... We showed how avalanche kinematics, once back azimuth and apparent velocity of infrasonic detections are properly analyzed, could be used to fix threshold criteria for automatic identification of infrasonic signals ...

11

A reliability assessment of physical vulnerability of reinforced concrete walls loaded by snow avalanches

A reliability assessment of physical vulnerability of reinforced concrete walls loaded by snow avalanches

... To describe the failure probability of civil engineer- ing structures exposed to snow avalanches and thus derive fragility curves, reliability approaches can be considered. For instance, in earthquake ...

16

Automatic detection of snow avalanches in continuous seismic data using hidden Markov models

Automatic detection of snow avalanches in continuous seismic data using hidden Markov models

... detect snow avalanches has thus far remained relatively ...detect avalanches focused on using fuzzy logic rules and credibility factors derived from features of the seismic signal in the time and ...

14

faSavageHutterFOAM 1.0: depth-integrated simulation of dense snow avalanches on natural terrain with OpenFOAM

faSavageHutterFOAM 1.0: depth-integrated simulation of dense snow avalanches on natural terrain with OpenFOAM

... Abstract. Numerical models for dense snow avalanches have become central to hazard zone mapping and mitigation. Sev- eral commercial and free applications, which are used on a regular basis, implement such ...

17

The EU CADZIE database for extreme and deflected snow avalanches

The EU CADZIE database for extreme and deflected snow avalanches

... The deflecting dam model (Harbitz et al., 2000) describes the motion of the avalanche centre-of-mass along the side of a retaining dam. Strictly speaking, the centre-of-mass is that of a representative frontal part of ...

12

High resolution radar measurements of snow avalanches

High resolution radar measurements of snow avalanches

... 2010–2011 at Vallée de la Sionne, Switzerland, are studied using a new phased array FMCW radar system with unprecedented spatial resolution. The 5.3 GHz radar penetrates through the powder cloud and re fl ects off the ...

6

Optimal design under uncertainty of a passive defense structure against snow avalanches: from a general Bayesian framework to a simple analytical model

Optimal design under uncertainty of a passive defense structure against snow avalanches: from a general Bayesian framework to a simple analytical model

... of avalanches are ob- served because of the changing nature of the fluid involved (Ancey, 2006) and only dry dense snow avalanches – which are characterized by densities around 300 ...(wet ...

15

Reconstructing snow avalanches in the Southeastern Pyrenees

Reconstructing snow avalanches in the Southeastern Pyrenees

... powder snow avalanches over four nivometeorological regions were triggered shortly after snowfall ...of snow water equivalent in 24 h, and snowfall ex- ceeding 150 l m −2 was recorded in several ...

14

Assessing the interaction between mountain forests and snow avalanches at Nevados de Chillán, Chile and its implications for ecosystem-based disaster risk reduction

Assessing the interaction between mountain forests and snow avalanches at Nevados de Chillán, Chile and its implications for ecosystem-based disaster risk reduction

... both avalanches and debris flows can affect the structure of Nothofagus forests by reducing canopy ...of snow avalanches and other gravitational natural hazards for the lo- cal community and for ...

14

Thermal energy in dry snow avalanches

Thermal energy in dry snow avalanches

... new snow were recorded and snow drift accumula- tions formed due to strong southerly ...fresh snow drift accumulations as the main ...powder avalanches which followed the gullies ...both ...

12

Show all 1241 documents...

Related subjects