Blar i Norwegian Geotechnical Institute (NGI) Digital Archive på forfatter "Norem, Harald"

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    • Activities of the Japanese-Norwegian collaboration of snow avalanche research during the winters 1990/1991 and 1991/1992. Final report 

      Bakkehøi, Steinar; Kristensen, Krister; Nishimur, Koichi; Norem, Harald; Sandersen, Frode (NGI-rapport;58120-29, Research report, 1993-03-05)
      The report gives a brief summary of the activities carried out by the Japanese - Norwegian collaboration on snow avalanche reasearch during the winters of 1990/1991 and 1991/1992. The research was mainly carried out in the ...

    • Activities of the Japanese-Norwegian collaboration on snow avalanche research, march 1991 

      Norem, Harald; Nishimura, Koichi; Bakkehøi, Steinar (NGI-rapport;58120-23, Research report, 1991-08-01)
      The report gives a brief summary of the activities carried out by the Japanese - Norwegian collaboration on snow avalanche reasearch during the winter of 1990/19991. The research was mainly carried out in the Ryggfonn ...

    • Comparing model and full-scale experiments on snow avalanche dynamics 

      Norem, Harald (NGI-rapport;58120-28, Research report, 1992-10-01)
      The paper is a part of a Japanese - Norwegian collaboration on snow avalanche dynamics. The results of model experiments carried out at the Institute of Low Temperature Science, Sapporo are compared with full-scale ...

    • 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 ...

    • 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 ...

    • 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 ...

    • Stress analyses for numerical modelling of submarine flowslides 

      Norem, Harald; Schieldrop, Bonsak (NGI-Rapport;522090-10, Research report, 1991-04-05)
      This report is based on, and is a continuation of the NGI-report 522090-2 "An Approach to the Physics and the Modelling of Submarine Flows lides ", by Norem, Locat and Schieldrop (1989).Submarine flowslides are assumed to ...

    • 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 ...