Blar i NGI articles på tidsskrift "Cold Regions Science and Technology"

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    • Snow avalanche energy estimation from seismic signal analysis 

      Vilajosana, I.; Suriñach, E.; Khazaradze, G.; Gauer, Peter (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 speed determination using seismic methods 

      Vilajosana, I.; Khazaradze, G.; Suriñach, E.; Lied, Erik; Kristensen, Krister (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 cover spatial variability at multiple scales: Characteristics of a layer of buried surface hoar 

      Schweizer, Jürg; Kronholm, Kalle (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 ...

    • Statistical and geometrical definition of snow avalanche runout 

      Martinelli, M. Jr.; McClung, D.M.; Lied, Karstein (Journal article, 1987)
      Two mathematical models for calculating the extreme avalanche runout from a fixed reference point on the path are presented and contrasted. The models are: (1) estimates of confidence limits on regression analyses of ...

    • Surface hoar characteristics derived from a snow micropenetrometer using moving window statistical operations 

      Lutz, Eric; Birkeland, Karl W.; Kronholm, Kalle; Hansen, Kathy; Aspinall, Richard (Journal article, 2007)
      This study aims to improve analytical techniques for studying stratigraphic dimensions and hardness characteristics of thin weak layers in the mountain snowpack, with particular interest to buried surface hoar layers. By ...

    • Traditional Sámi snow terminology and physical snow classification—Two ways of knowing 

      Eira, I.M.G.; Jaedicke, Christian; Magga, O.H.; Maynard, N.G.; Vikhamar-Schuler, D.; Mathiesen, S.D. (Journal article, 2012)
      Humans describe the natural environment on the basis of their local experience and their interactions with nature in terms of its relevance to their daily lives. These descriptions are incorporated into local languages and ...