Now showing items 118-137 of 196

    • Reinunga, Aurland. Snøskredulykke 3. mars 2004 

      Jaedicke, Christian (NGI-rapport;20041154-01, Research report, 2004-03-26)
      A derivation is given for the equation of thermodynamic equilibrium between ice and water in porous media. The equation accounts for a difference between the pressure of the ice phase and the total potential (in pressure ...
    • REMEDY - et BegrensSkade prosjekt. Sluttrapport 

      Unknown author (NGI-rapport;20170774-01-R, Report, 2023)
      BegrensSkade-prosjektene har vært bransjeomfattende forskningsprosjekt finansiert av Norges forskningsråd samt private aktører i byggenæringen. Det første BegrensSkade prosjektet startet i 2012, og med avslutningen av ...
    • Remote Identification, Characterization and Monitoring of Erosional Processes 

      Salazar, Sean E.; Hormes, Anne; Issler, Dieter (NGI Rapport;20170031-03-R, Report, 2018-03-21)
      Remote sensing techniques and geophysical techniques have enabled the collection of vital information on geotechnical, hydrogeological, and environmental processes. These techniques may offer improvements over traditional ...
    • Research Plan 2020–2022 

      Issler, Dieter; Jaedicke, Christian; Gauer, Peter; Gisnås, Kjersti; Frauenfelder, Regula; Salazar, Sean (NGI-Rapport;20200017-01-R, Research report, 2020-04-23)
      Snow avalanches are a significant natural hazard and common phenomenon in Norway. Each year, avalanches result in fatalities, evacuations, and interruptions or damage to infrastructure networks such as roads, railways, and ...
    • Research Plan 2023–2025 

      Tregaskis, Callum; Jaedicke, Christian; Gauer, Peter; Gisnås; Robinson, Kate; Issler, Dieter; Salazar, Sean; Vicari, Hervé; Frauenfelder, Regula (NGI-Rapport;20230100-01-R, Research report, 2023-05-19)
      Snow avalanches are a frequent and significant natural hazard in Norway. Each year, avalanche events result in fatalities, evacuations, interruptions, and damage to infrastructure networks such as roads, railways, and ...
    • Resultat av målinger på snøforbygning - vinteren 1978/1979 

      DiBiagio, Elmo (NGI-rapport;75420-03, Research report, 1980-02-15)
      Denne rapporten inneholder en kort beskrivelse av instrumenteringen på snøforbygningen, måleresultatene fra vinteren 1978/1979, samt forsøk på å finne fram til belastningsdiagram som passer med de malte verdiene for noen ...
    • Resultater av målinger på mast - vinteren 1978/1979 

      DiBiagio, Elmo (NGI-rapport;75420-05, Research report, 1980-05-23)
      Denne rapporten inneholder en kort beskrivelse av instrumenteringen på masten, de malte stalspenningene gjennomvinteren 1978/79, samt en vurdering av resultatene.
    • Resultater av målinger på mast vinteren 1986/87 

      Hansen, Svein Borg (NGI-rapport;58110-06, Research report, 1987-10-01)
      Denne rapporten inneholder en kort beskrivelse av instrumenteringen på masten, de målte stålspenningene gjennom vinteren 1986/87, de utregnede aksiallastene og bøyemomentene, samt en kort vurdering av resultatene.
    • Resultater av målinger på rør - vinteren 1978/79 

      DiBiagio, Elmo (NGI-rapport;75420-04, Research report, 1980-02-29)
      Denne rapporten inneholder en kort beskrivelse av instrumenteringen på røret, de utregnede stålspenningene forvinteren 1978/79, samt en vurdering av resultatene.
    • Review of meteorological data from Fonnbu 2009–2016 

      Ragulina, Galina (NGI-rapport;20140053-05-TN, Research report, 2017-01-25)
      12 observed parameters are recalculated with a time step of 1 hour from the original raw data set of observed values with 10 minute time step. To form winter season data sets which would cover complete snow season, it was ...
    • Risk analysis for landslides and snow avalanches. Example applications for snow avalanches 

      Nadim, Farrokh (NGI-rapport;522051-01, Research report, 1999-12-23)
      Prediction of snow avalanche occurrence and its run-out distance inherently involves many uncertainties. The main reason for the large uncertainties is that the mechanical behaviour of snow is extremely complicated, and ...
    • Ryggfonn - Options for reconstruction of the test site. Deliverable of the NFR-Snow research programme SIP-6 

      Issler, Dieter (NGI-rapport;58120-34, Research report, 2001-01-31)
      Norges Forskningsråd (NFR)
    • The Ryggfonn 5m digital terrain model 

      Kronholm, Kalle (NGI-rapport;20110116-00-1-TN, Research report, 2011-04-12)
      This document describes how the 5m digital terrain model (DTM) for Ryggfonn has been made and how the data is formatted.
    • The Ryggfonn project. Avalanche data from the winters 1994/95 and 1995/96 

      Kristensen, Krister (NGI-rapport;58120-32, Research report, 1997-12-20)
      This report presents data collected from the full-scale Ryggfonn project during the winters 1994/95 and 1995/95. Only four avalanches were observed in the course of these two winters, three of which were naturally released ...
    • The Ryggfonn project. Avalanche data from the winters 1996/97, 1997/1998, 1998/1999 and 1999/2000 

      Kristensen, Krister (NGI-rapport;58120-33, Research report, 2001-11-01)
      This report presents data collected from the full-scale Ryggfonn project during the winters 1996/1997, 1997/1998, 1998/1999 and 1999/2000. The weather and snow conditions and avalanches characteristics are summarised. The ...
    • The Ryggfonn project. Description of instrumentation and data registration system 

      Kvisterøy, Terje (NGI-rapport;58120-03, Research report, 1983-06-10)
      The Ryggfonn avalanche path has been instrumented to measure: deflections on a 6 m high steel mast mounted at top of the test embankment by means of weldable strain gauges; wind speed of powder snow fronts by means of a ...
    • Ryggfonn prosjektet. Målinger gjort under skred 23. april 1983 

      Kvisterøy, Terje (NGI-rapport;58120 Notat 1983-06-27, Research report, 1983-06-27)
    • Sentrifuge til bestemmelse av strekkfasthet i snø 

      Fischer, Karl Petter (NGI-rapport;58101-01, Research report, 1974-01-01)
      På snøforskningsstasjonen i Grasdalen var det behov for laboratorieutstyr til utforskning av snøens mekaniske egenskaper. Efter en studietur som undertegnede foretok til Snøforsknings instituttet på Weissfluhjoch ovenfor ...
    • Shear stresses and boundary layers in snow avalanches 

      Norem, Harald (NGI-rapport;581240-03, Research report, 1995-10-20)
      Full-scale experiments on snow avalanches have shown that the major part ofthe avalanches are mixed flow avalanches, and that they consist of at least two parts, a dense flow part and a turbidity part. The report is based ...
    • A Simple Model for the Variability of Release Area Size 

      Issler, Dieter (NGI-Rapport;20200017‐03‐TN, Research report, 2023-08-24)
      The hazard mapping tool NAKSIN estimates the release probability of potential release areas (PRAs) by testing a stability criterion based on the infinite-slope approximation with a large sample of synthetic weather situations. ...