Browsing NGI report by Issue Date
Now showing items 41-60 of 198
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Detaljer og forandringer i forbindelse med feltinstrumentering i Ryggfonn sesong 1990/91
(NGI-rapport;58120 Notat 1991-01-15, Research report, 1991-01-15)Detaljer og forandringer i forbindelse med feltinstrumentering i Ryggfonn sesong 1990/91 -
Stress analyses for numerical modelling of submarine flowslides
(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 ... -
Activities of the Japanese-Norwegian collaboration on snow avalanche research, march 1991
(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
(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 ... -
Pelefundamentering av kraftmaster og snøskredforbygninger i skrått terreng - Sluttrapport
(Research report, 1993-02-03)Prosjektet har gått ut på å undersøke muligheten av bruk av peler for å fundamentere snøskredforbygninger, kraftmaster oglignende konstruksjoner på løsmasser i bratt terreng. Siktemålet har først og fremst vært å gjennomføre ... -
Activities of the Japanese-Norwegian collaboration of snow avalanche research during the winters 1990/1991 and 1991/1992. Final report
(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 ... -
Shear stresses and boundary layers in snow avalanches
(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 ... -
Snow avalanche forecasting in Iceland and Norway
(NGI-rapport;581250-02, Research report, 1996-01-29)This document describes local avalanche warning and forecasting operations in Iceland and Norway, with the focus on forecasting as a preventive measure for communities with threatened habitations. The objective of an ... -
Computational models for dense snow avalanche motion
(NGI-rapport;581250-03, Research report, 1996-04-30)Seventeen various models of dense snow avalanche motion are presented. These include statistical, comparative and energy considering models for runout distance computations as well as dynamic models for avalanche motion ... -
Simulations of dense snow avalanches on deflecting dams
(NGI-rapport;58121-03, Research report, 1997-08-27)Two models simulating snow avalanches impacting retaining dams at oblique angles of incidence are presented. First a lumped mass model applying the Voellmy-Perla equation is used to calculate the path ofthe centre-of-mass ... -
TIGRA. The integrated geological risk assessment. Hazard zoning methods of snow avalanches, debris flow and rock falls. Final report
(NGI-rapport;589210-03, Research report, 1997-11-20)The present report describes natural hazard zoning methods for snow avalanches in Norway and in some other countries were avalanches are a serious threat to the society. In addition methods for rock-fall and debris slide ... -
The Ryggfonn project. Avalanche data from the winters 1994/95 and 1995/96
(NGI-rapport;58120-32, Research report, 1997-12-20)This report presents data collected from the full-scale Ryggfonn project during the winters 1994/95 and 1995/95. Only four avalanches were observed in the course of these two winters, three of which were naturally released ... -
EU Programme SAME. A survey of computational models for snow avalanche motion
(NGI-rapport;58122-01, Research report, 1998-12-11)Various models for computation of avalanche motion are presented, both empirical procedures including statistical and comparative models for runout distance computations as well as dynamics models describing the physics ... -
EU Programme SAME. Draft proposal for a co-ordinated European full-scale avalanche experiment
(NGI-rapport;58122-02, Research report, 1998-12-11)The scope of this proposal is to describe the conclusions made in the EU programme SAME (Avalanche Mapping, Model Validation and Warning Systems) for a future co-ordinated European full-scale avalanche experiment. It is ... -
Risk analysis for landslides and snow avalanches. Example applications for snow avalanches
(NGI-rapport;522051-01, Research report, 1999-12-23)Prediction of snow avalanche occurrence and its run-out distance inherently involves many uncertainties. The main reason for the large uncertainties is that the mechanical behaviour of snow is extremely complicated, and ... -
Permafrost response to environmental and industrial loads. Snø og snøskred på Svalbard. Registrering av snøforhold, snøskred og utløpslengder
(NGI-rapport;58910-04, Research report, 1999-12-30)Det er behov for forskning på snø og skred i arktiske områder for å kunne gi faglig verifiserte råd i forbindelse med utvikling og bruk av områdene. Problemstillinger og erfaringer fra ca 25 konsulentoppdrag på Svalbard ... -
Framdriftsrapport. SIP Snøskredforskning. Rapporteringsperiode 1.8.1999 - 31.8.2000.
(NGI-rapport;58900-04 (B), Research report, 2000-08-31) -
Ryggfonn - Options for reconstruction of the test site. Deliverable of the NFR-Snow research programme SIP-6
(NGI-rapport;58120-34, Research report, 2001-01-31)Norges Forskningsråd (NFR) -
EU Program CADZIE WP5. Norwegian zoning tools.
(NGI-rapport;20011001-02, Research report, 2001-04-20)In Work Package 5, Task 2 of the EU-Program CADZIE (Catastrophic Avalanches, Defence Structures and Zoning in Europe), each participating country will contribute to Deliverable D9: Pre-standardisation of zoning tools. The ... -
Skredulykken under Håbergnuten, Svalbard
(NGI-rapport;58810-21, Research report, 2001-08-31)To menn som var ute og kjørte snøscootere ble tatt av et snøskred som løsnet i fjellsida opp mot fjellet Håbergnuten sør for Dryabreen i Fardalen ca. kl. 15:30 Søndag 4. februar 200 I. Skredet løsnet etter forutgaende ...