Blar i Norwegian Geotechnical Institute (NGI) Digital Archive på forfatter "Høydal, Øyvind A."

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    • Effect of high elevation birch forest on snow stability 

      Breien, Hedda; Høydal, Øyvind A. (The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2013)
      Forest and especially evergreen conifers like pine and spruce are known to reduce avalanche formation due to their physical anchoring effect and their influence on snow pack layering through changed temperature, radiation, ...

    • Influence of forest on snow avalanche hazard – norwegian challenges 

      Breien, Hedda; Høydal, Øyvind A. (The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2012)
      Forested areas are less prone to snow avalanches, due to the trees' influence on snow accumulation, snow pack layering, energy balance and the armoring effect of the trees. Crown cover, tree dimensions and forest density ...

    • Use of Daisybell and Snow Profiles to Investigate the Effect of Alpine Birch on Avalanche Release 

      Breien, Hedda; Høydal, Øyvind A.; Almgren, Oscar M. (The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2014)
      Through a field study in Abisko, northern Sweden, we have used the artificial avalanche release system DaisyBell together with snow profiles to study the effect of alpine birch forest on avalanche formation. Evergreen ...