Blar i NGI articles på tittel
Viser treff 662-681 av 1033
-
Overrun length of avalanches overtopping catching dams: Cross-comparison of small-scale laboratory experiments and observations from full-scale avalanches
(Journal article, 2008)Results from small-scale and full-scale experiments on avalanche–dam interactions are presented and compared. These experiments were analyzed with respect to the overrun length (i.e., the distance that the avalanche traveled ... -
An overview of avalanche forecasting models and methods
(NGI Publication;203, Chapter, 1998)This overview resumes first the historical development of avalanche forecasting in different countries of the world. It yields the most basic definitions like "avalanche danger" and presents the major problems of avalanche ... -
An overview of natural hazard zoning with special reference to avalanches
(NGI Publication;203, Chapter, 1998)Natural hazards are increasingly a limiting factor in mountainous countries in connection with the growing population and economical development. People become more and more estranged to environmental conditions and are ... -
Overview of soft ground TBM performance
(Chapter, 2023) -
An overview of the need for avalanche protection measures in Iceland
(Iceland. Ministry for the Environment;VI-R96004-UR03, Report, 1996)The present report is prepared by the Icelandic Meteorological Office for the Icelandic Ministry for thc Environment and Iocal authorities in towns threatened by avalanches.... -
PAH i forurenset sediment: Utredning av egnethet av PAHkomponenter/ grupperinger for vurdering av tiltaksbehov
(Research report, 2015)I Norge er det utarbeidet klassegrenser for til sammen 16 PAH-forbindelser i sediment og vann. Grenseverdiene baserer seg på kunnskap om toksisitet av de ulike stoffene og hva som er akseptabel eksponering for miljøet. I ... -
PANDALP : a new penetrometer for snow investigation
(NGI Publication;203, Chapter, 1998)This paper presents a new tool for snow investigation, issued from a portable dynamic penetrometer Panda with variable energy for soil investigation. After a brief presentation of this apparatus, a comparable study between ... -
Paper product production identified as the main source of per- and polyfluoroalkyl substances (PFAS) in a Norwegian lake: Source and historic emission tracking
(Peer reviewed; Journal article, 2020)The entirety of the sediment bed in lake Tyrifjorden, Norway, is contaminated by per- and polyfluoroalkyl substances (PFAS). A factory producing paper products and a fire station were investigated as possible sources. Fire ... -
Parameterization of a numerical 2-D debris flow model with entrainment: a case study of the Faucon catchment, Southern French Alps
(Journal article, 2012)The occurrence of debris flows has been recorded for more than a century in the European Alps, accounting for the risk to settlements and other human infrastructure that have led to death, building damage and traffic ... -
Particle simulation of snow avalanche motion
(Journal article, 1984)The continuum model of a snow avalanche is abandoned, and instead an avalanche is modeled as a collection of particles that move randomly and independently subject to gravity and resistive forces which have a random ... -
Peatland Volume Mapping over Resistive Substrates with Airborne Electromagnetic Technology
(Peer reviewed; Journal article, 2019)Despite the importance of peatlands as carbon reservoirs, a reliable methodology for the detection of peat volumes at regional scale is still missing. In this study we explore for the first time the use of Airborne ... -
Penetration and retrieval forces during sampling in a very soft clay
(Peer reviewed; Journal article, 2021) -
Penetration Model for Installation of Skirted Foundations in Layered Soils
(Peer reviewed; Journal article, 2019)During installation of a skirted foundation, resistance to penetration is a combination of side and tip resistances. When penetrating a permeable soil unit, tip resistance in particular can be high but if seepage water ... -
Penzenlähner avalanche - calculation of maximum run-out of snow avalanches. Presentation of the results from the Norwegian working group
(Journal article, 1999)In order to find a probable run-out of extreme snow avalanches in the area east of HU:1gerburg of the Penzenlahnerlawine, we have used three different methods to calculate runout in the same manner as in Norway. The models ... -
Per- and polyfluoroalkyl substance (PFAS) removal from soil washing water by coagulation and flocculation
(Peer reviewed; Journal article, 2024) -
Perception of risk in avalanche terrain
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2012)Although avalanche training and the risk minimization strategies have greatly evolved and are being widely taught to recreational and professional users, too many serious accidents continue to happen within the educated ... -
Permafrost Thermal Dynamics and Cryostratigraphy at Villum Research Station, Station Nord, Eastern North Greenland (81°N)
(Peer reviewed; Journal article, 2022)We provide the northernmost permafrost thermal analysis in Greenland through the ground temperature time series (2014–2021) and cryostratigraphy of two 20-m deep boreholes (SN1 and SN2) at Villum Research Station, Station ... -
Permissible range of model parameters for natural fine-grained materials
(Peer reviewed; Journal article, 2017)This paper presents a three-dimensional constitutive model for natural clay that includes creep, anisotropy and structure, as well as a theoretical means to estimate the range for anisotropy- and structure-related parameters, ... -
Persistent, mobile and toxic (PMT) and very persistent and very mobile (vPvM) substances pose an equivalent level of concern to persistent, bioaccumulative and toxic (PBT) and very persistent and very bioaccumulative (vPvB) substances under REACH
(Peer reviewed; Journal article, 2020)Under the EU chemicals regulation REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals EC 1907/2006), registrants are not obliged to provide information related to intrinsic substance properties for ...