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Slushflow Formation, Flow Regimes and Consequences (Short Version)
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2012)The term ‘slushflow’ was introduced by Washburn and Goldthwait (1958). Eight people perished in slushflows during the winters 2010 and 2011 in Norway, five in backcountry, two in their home and one truck-driver. Buildings, ... -
Slushflow hazard - where, why and when? 25 years of experience with slushflow consulting and research.
(Journal article, 1998)Slushflows — flowing mixtures of water and snow — are a major natural hazard in Norway. Knowledge gathered by the Norwegian Geotechnical Institute during 25 years of slushflow consulting and research is presented. The ... -
Slushflow hazard control. A review of mitigative measures.
(NGI Publication;203, Chapter, 1998)Slushflow hazard detection and control are based on both active and passive mitigative measures performed above and within the starting zones as well as along the path and in the runout zone. The main aim of preventive ... -
Slushflow hazard prediction and warning
(Journal article, 2004)Parameters critical to slushflow release have been studied during 11 winters in Rana, North Norway. Slushflows occurred during 16 periods within the research areas and during another 13 in the district. A noticeable rise ... -
Slushflow questionnaire
(NGI-rapport;58200-06, Research report, 1988-10-10)Questionnaires concerning slushflows were distributed globally. The purpose of the questionnaire was to determine the geographic distribution of slushflow activity as well as to collect information concerning most common ... -
Slushflows: Basic properties and spreading
(NGI Publication;203, Chapter, 1998)The article presents results of an analytical review of factual data and scientific studies concerning slushflows. The basic conditions and gears of origin, parameters and typology of flows are considered, as well as the ... -
Small strain stiffness within logarithmic contractancy model for structured anisotropic clay
(Peer reviewed; Journal article, 2021)Stiffness of soils in the small strain region is high and it decays nonlinearly with increasing shear strains or with mobilization of shear stresses. However, the commonly used critical state based constitutive models use ... -
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 ...