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Snaps - snow, ice and avalanche applications
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2012)The SNAPS project focuses on snow and avalanche services for transport infrastructure in selected areas within the Northern Periphery in Iceland, Norway, Sweden and Finland. The main tasks of the project are: development ... -
Snow avalanche at Bleie, Ullensvang, January 1994.
(NGI Publication;203, Chapter, 1998)A major snow avalanche hit the farms at Bleie, municipality of Ullensvang, January 27 1994. Three dwelling houses were completely destroyed, and several other buildings were destroyed or damaged. The history of the Bleie ... -
Snow avalanche damages in Norway 1981/82
(NGI-rapport;58810-03, Research report, 1982-05-07)The Avalanche Section at the Norwegian Geotechnical Institute after each winter compiles a survey of accidents and damage caused by snow avalanches. Serious accidents are investigated by NGI and reports are published in ... -
Snow avalanche damages in Norway 1982/83
(NGI-rapport;58810-06, Research report, 1983-09)The report constitutes part of the effort in the field "snow avalanche mechanics" described in the long range research plan for ngi, 19 82- 86 (res earch area 4, program 4.2.) -
Snow avalanche damages in Norway 1983/84
(NGI-rapport;58810-08, Research report, 1984-12-27)The report constitutes part of the research effort in the field "slides and avalanches" described in the long range research plan for NGI 1985-1989 (research area 2, program 2.4). -
Snow avalanche dynamics : observations and experiments
(NGI Publication;203, Chapter, 1998)In order to investigate the dynamics and the detailed structure of snow avalanches, we have made systematic observations in the Shiai-dani, Kurobe Canyon since 1989. Velocities of the lower flowing component were calculated ... -
Snow avalanche energy estimation from seismic signal analysis
(Journal article, 2007)A method to determine the dissipated seismic energy into the ground by a down going avalanche is presented. Evaluation of the seismic energy is useful for avalanche size classification, model validation, and for characterization ... -
Snow avalanche experience through 25 years at NGI.
(NGI Publication;203, Chapter, 1998)This year it is 25 years since the Norwegian parliament decided that NG! should be the institution responsible for snow avalanche research and consulting work in Norway. Because of several major snow avalanche accidents ... -
Snow avalanche forecasting in Iceland and Norway
(NGI-rapport;581250-02, Research report, 1996-01-29)This document describes local avalanche warning and forecasting operations in Iceland and Norway, with the focus on forecasting as a preventive measure for communities with threatened habitations. The objective of an ... -
Snow avalanche research programme SIP-6. Ryggfonn. Full scale avalanche test site and the effect of the catching dam
(NGI-rapport;58120-35, Research report, 2002-02-28)The effect of the 16 m high retaining dam in Ryggfonn has been analysed by using data from 12 dry snow avalanches. Except for one avalanche, which was stopped by the dam, all of these avalanches overtopped it and ran ... -
Snow avalanche speed determination using seismic methods
(Journal article, 2007)We present a new method to determine the average propagation speed of avalanches using seismic techniques. Avalanche propagation speeds can reach 70 m/s and more, depending on a wide range of factors, such as the characteristics ... -
Snow Avalanches
(Chapter, 2004)Snow avalanches represent a threat to societies in many countries of the world. In America, Asia, Australia, and Europe, several mountainous countries are affected by this type of natural hazard. People, housing areas, ... -
Snow cover spatial variability at multiple scales: Characteristics of a layer of buried surface hoar
(Journal article, 2007)With the aim of a multi-scale analysis, we simultaneously observed snowpack stratigraphy and stability at three scales: the slope scale, the regional scale and the mountain range scale. The minimum spacing between measurements ... -
Snow creep pressure on mast constructions
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 1990)In Norway snow-creep quite often causes damage on mast constructions on hillsides exposed to deep snow-cover. An extensive snow-creep measurement program has therefore been carried out for different constructions at NGI's ... -
Snow drift challenges at Klettsháls mountain road pass in Iceland
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2014)Snow fences are usually used to control snowdrift problems on a relatively flat and open terrain. Snowdrift problems on mountain roads and passes are normally more challenging. The terrain is often more complex, winds can ... -
Snow mass quantification and avalanche victim search by ground penetrating radar
(Journal article, 2003)Ground penetrating radar (GPR) systems can be used in many applications of snow and ice research. The information from the GPR is used to identify and interpret layers, objects and different structures in the snow. A ... -
Snow Pressure on Rigid Obstacles
(Journal article, 1976)In this paper a continuum mechanical formulation of snow pressure is given. The snow pressure against retaining structures on slopes is considered in two separate parts: (1) the static component due to the regression of ... -
Snow thickness profiling on Antarctic sea ice with GPR—Rapid and accurate measurements with the potential to upscale needles to a haystack
(Peer reviewed; Journal article, 2017)Snow thickness on sea ice is a largely undersampled parameter yet of importance for the sea ice mass balance and for satellite-based sea ice thickness estimates and thus our general understanding of global ice volume change. ... -
Snow-creep pressure on masts
(Journal article, 1989)Snow-pressure measurements have been carried out on two masts at the NGI avalanche station in Grasdalen, western Norway. These two tubular masts have diameters of 0.22 and 0.42 m, respectively, and are situated on a 25° ... -
The snowdrift pattern around a small hill in the High Arctic
(Chapter, 2000)The snow distribution in complex terrain is important for the planning of infrastructure, so that large snow depths can be avoided in residential areas and in connection with roads and railroads. Numerical models can give ...