Blar i Norwegian Geotechnical Institute (NGI) Digital Archive på forfatter "Jonsson, Arni"

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    • An avalanche index for roads 

      Jonsson, Arni; Kristensen, Krister (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 ...

    • Avalanche risk along a 420 kV transmission line in Iceland 

      Jonsson, Arni; Bakkehøi, Steinar; Hauksson, Sigurjon (Chapter, 2008)
      Two transmission lines between Flj6tsdalur and Reyöarfjöröur in northeast Iceland have been investigated conceming snow avalanche hazard. As a basis for the calculations of the return periods of the avalanches, weather and ...

    • Avalanches in Longyearbyen Svalbard 2015 and 2017: Avalanche Protection - Visions 

      Jonsson, Arni; Jaedicke, Christian (Journal article, 2017)
      Longyearbyen, the administrative centre of the Svalbard archipelago, is facing most types of natural hazards under a changing Arctic climate. The first indication in meteorological data of a change in climate was a heavy ...

    • Rows of vertical steel-silos filled with debris - an effective space-saving avalanche defense structure. 

      Hestnes, Erik; Jonsson, Arni (Chapter, 2002)
      Multiplate steel configurations, primarily used for road tunnels and culverts, are introduced as effective, flexible and space-saving avalanche defence structures. Silos of specified height and profile are filled with ...

    • "Safe haven" at road sides near avalanche prone sites 

      Jonsson, Arni (The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2008)
      Snow avalanches cause threat to road traffic in mountainous areas in Iceland in wintertime. One or more vehicles are hit by avalanches every year but last year’s no fatal accidents due to snow avalanches have been reported. ...