Blar i Norwegian Geotechnical Institute (NGI) Digital Archive på tittel
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Automatic Mapping and Characterisation of Linear Depositional Bedforms: Theory and Application Using Bathymetry from the North West Shelf of Australia
(Peer reviewed; Journal article, 2022) -
The avalanche accident at Vassdalen, Norway, 5th March 1986
(Journal article, 1988)Shortly after 1300 hrs on wednesday March 5, 1986, a snow avalanche released from Storebalak, a mountain located at Vassdalen in Nordland county. The avalanche struck 31 men from the North Norway Brigade while they were ... -
The avalanche at Flateyri, Iceland October 26th 1995 and the avalanche history
(NGI Publication;203, Chapter, 1998)An avalanche struck the village Flateyri on 26.10.1995 killing 20 people. There was also an enormous property damage. The avalanche went further than previously known for avalanches from Skollahvilft. The weather conditions ... -
Avalanche caused catastrophes on the mountainous rivers
(NGI Publication;203, Chapter, 1998)Alongside with the danger of snow avalanching for the objects and population, the subsequent phenomena caused by the avalanching are not less serious. One of such reasons can be the choked lakes and outflash floods on the ... -
Avalanche characterization for regional forecasting
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2008)In the Sunnmøre and Romsdal road districts in Western Norway, the local road authorities have compiled a register of more than 300 sites where avalanches encounter principal roads in the area. The area covered is about 5 ... -
Avalanche control measures for roads in Norway
(Chapter, 1994)In a mountainous country like Norway the roads are exposed to different kind of natural hazards. Increasing traffic and extensive road-building programs the latest 25 years have made the society dependent on a relatively ... -
Avalanche debris detection using satellite-borne radar and optical remote sensing
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2014)The mountainous fjord landscape around Tromsø in Northern Norway is prone to high avalanche activity during the snow season. Large avalanches pose a hazard to infrastructure, such as buildings and roads, located between ... -
Avalanche defences for Flateyri, Iceland. From hazard evaluation to construction of defences.
(NGI Publication;203, Chapter, 1998)The village of Flateyri was hit by two major avalanches in 1995, with the latter one killing 20 of the 45 people caught in it. These, together with the catastrophic avalanche in the nearby Súôavík in January the same year, ... -
Avalanche forecasting and risk mitigation for specific objects at risk
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2013)Objects and individuals can be exposed to different levels of avalanche hazard. For objectspecific avalanche forecasting and risk mitigation programs, the general danger scales, such as the European and North American ... -
Avalanche forecasting for transportation corridor and backcountry in Glacier National Park (BC, Canada)
(NGI Publication;203, Chapter, 1998)The Avalanche Control Section at Rogers Pass is responsible for avalanche safety on the Trans Canada Highway and Canadian Pacific Railroad within Glacier National Park and for the daily issue of an avalanche warning bulletin ... -
An avalanche forecasting program based on a modified nearest neighbour method.
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 1994)As a part of an avalanche forecasting system, a modified nearest neighbour program is described. The system is intended to be used with forecast values for most ofthe parameters. The modifications consist of 1) the use of ... -
Avalanche hazard mapping using numerical Voellmy-Fluid models
(NGI Publication;203, Chapter, 1998)One- and two-dimensional numerical dense-snow avalanche dynamics models using a Voellmy-fluid constitutive flow law have been developed in Switzerland recently. In order to apply these models in practice, they have been ... -
An avalanche index for roads
(Chapter, 2008)Several methods have been introduced through the years to evaluate avalanche risk along road sections. In 1988, Peter Schaerer introduced Avalanche Hazard Index, a numerical expression of damage and loss as the result of ... -
The avalanche monitoring system av mount Pizzac
(NGI Publication;203, Chapter, 1998)The monitoring system of Mount Pizzac has been created in order to study the avalanche dynamics and the effect of its impact on the structures. In its extreme dimensions the monitored avalanche gets off at 2200 meters and ... -
Avalanche observations at the Ryggfonn test site, Norway, with correlation to snow and weather conditions
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2014)The Norwegian Geotechnical Institute (NGI) has been running full-scale avalanche experiments at the Ryggfonn test-site in western Norway for close to 40 years. Data from this period involve observations from about 32 ... -
Avalanche observations versus numerical avalanche model: Simple test of model performance
(NGI-Rapport;20200017-04-TN, Research report, 2021-03-22)Hazard assessment for landuse planning in snow avalanche prone areas requires, besides knowledge of return periods, the specification of expected runout distances. For a complete risk assessment, additionally, the intensity ... -
The avalanche of la Tartera de la Pica (Andorra)
(NGI Publication;203, Chapter, 1998)The great extension of the avalanche path of "la tartera de la Pica" was identified during a systematic avalanche cartography in Andorra (Pyrenees). There are witnesses who, around 1930, saw the avalanche going down around ... -
Avalanche prediction and strength-of-knowledge assessment
(Lecture, 2018)The NGI provides local avalanche forecasting, produces hazard maps and acts as an advisor for national and local authorities during emergencies. A main task is often to assess the likelihood of an avalanche reaching specific ... -
Avalanche probability: Slab release and the effect of forest cover
(Lecture, 2018)One of the main challenges in regard to hazard mapping is to estimate avalanche probabilities and avalanche size for a given path. One reason for this is the lack of sufficient data. By definition, avalanches of interest ...