Blar i NGI articles på forfatter "Norem, Harald"

Viser treff 1-8 av 8

    • Comparing topographical and dynamical runout models by ideas of nearest neighbour method 

      Bakkehøi, Steinar; Norem, Harald (Journal article, 1999)
      Different avalanche runout models are used to compare the calculated results against observations of 230 real avalanches in Norway. The parameters used in the models are investigated and optimized to get the best fit to ...

    • Design criteria and location of snow fences 

      Norem, Harald (Journal article, 1985)
      The paper describes experience gained in Norway regarding the design criteria and use in practice of snow fences . The paper is based on theoretical studies on drifting snow, model experiments and experience accumulated ...

    • The effect of dam constructions as mitigative measures: 14 years of experience from a full-scale project 

      Larsen, Jan Otto; Norem, Harald (Lecture, 1996)
      The Ryggfonn project is a full-scale project for determination of avalanche behavior. Measurements of velocities, impact pressures and observations of flow patterns around a 15 m high and 75 m long earthfill dam, have been ...

    • Estimating run-out distances for extreme snow avalanches 

      Norem, Harald; Bakkehøi, Steinar (Lecture, 1992)
      Lecture presented at the Universitè Européenne d'Eté. Neige et Avalanches, Chamonix 1992. Estimating the run-out distances for snow avalanches is an important task for land use planning in mountaneous areas. The practical ...

    • Measurement of avalanche speeds and forces: instrumentation and preliminary results of the Ryggfonn project. 

      Norem, Harald; Kvisterøy, Terje; Evensen, B. D. (Journal article, 1985)
      The Ryggfonn project is a Full scale experiment carried out to investigate the impact of avalanches on structures and the effects of a retaining dam in the avalanche path. The vertical drop of the avalanche path is 910 m ...

    • Observations of the dynamic structure of snow avalanches 

      Nishimura, K.; Maeno, N.; Kristensen, Krister; Sandersen, Frode; Norem, Harald; Lied, Karstein (Journal article, 1993)
      During two winters, 1990–92, the dynamic structures of snow avalanches were studied in western Norway. Artificially released wet-snow avalanches ran down the avalanche chute and stopped in front of the retaining dam. Running ...

    • Simulation of snow-avalanche flow in run-out zones. 

      Norem, Harald; lrgens, Fridtjov; Schieldrop, Bonsak (Journal article, 1989)
      The authors of this paper have previously, in 1987, outlined the development of a set of constitutive equations representing the behaviour of avalanching snow, and the resulting equations for fully developed steady shear ...

    • Utviklingstrekk og muligheter for sikring av veger mot snøskred 

      Norem, Harald (Journal article, 1984)
      Snøutvalget i Statens Vegvesen var i virksomhet i perioden 1974- 82. Hovedformålet til utvalget var å følge med i snøprosjekter ved NTH, initiere forsøk med sikring av veger mot. snøskred og drivsnø, og sørge for at ...