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Facilitating microplastic quantification through the introduction of a cellulose dissolution step prior to oxidation: Proof-of-concept and demonstration using diverse samples from the Inner Oslofjord, Norway
(Peer reviewed; Journal article, 2020)Identifying and quantifying microplastic in marine samples can be facilitated by removing natural organic matter (NOM). Cellulosic material, like chitin, however, are a type of NOM that is resistant to chemical digestion, ... -
Fading positive effect of biochar on crop yield and soil acidity during five growth seasons in an Indonesian Ultisol
(Peer reviewed; Journal article, 2018)Low fertility limits crop production on acidic soils dominating much of the humid tropics. Biochar may be used as a soil enhancer, but little consensus exists on its effect on crop yield. Here we use a controlled, replicated ... -
faSavageHutterFOAM 1.0: depth-integrated simulation of dense snow avalanches on natural terrain with OpenFOAM
(Peer reviewed; Journal article, 2018)Numerical models for dense snow avalanches have become central to hazard zone mapping and mitigation. Several commercial and free applications, which are used on a regular basis, implement such models. In this study we ... -
Fatigue design sensitivities of large monopile offshore wind turbines
(Peer reviewed; Journal article, 2022) -
Fatigue sensitivity to foundation modelling in different operational states for the DTU 10MW monopile-based offshore wind turbine
(Peer reviewed; Journal article, 2019)The importance of foundation modelling for the support-structure fatigue damage estimation of a 10 MW monopile based offshore wind turbine is investigated in different operational states and wind-wave misalignment conditions. ... -
FE simulation of steady state wave motion in solids combined with a PML approach
(Peer reviewed; Journal article, 2017)This study presents a finite element (FE) framework for simulation of steady state wave motion, combined with a so-called PML approach. The steady state wave motion of current interest are not only time-harmonic load but ... -
Field experiments at three sites to investigate the effects of age on steel piles driven in sand
(Peer reviewed; Journal article, 2019)This paper investigates the influences that steel type, in-situ soil properties, water table depth, pile diameter, roughness and driving procedures have on the ageing behaviour of piles driven in sand. Tension tests have ... -
Field measurements of sintering after fracture of snowpack weak layers
(Journal article, 2006)This research documents two cases where field workers unintentionally fractured a snowpack weak layer, but no avalanche released. Measurements from before and after the fractures provide unique data sets on the temporal ... -
Field verification tests of the newly developed flow cone tool—In-situ measurements of hydraulic soil properties
(Peer reviewed; Journal article, 2019)Hydraulic soil properties, and in particular the hydraulic conductivity, is important in a number of geotechnical design cases. However, attention is often drawn towards the method of analysis rather than the quality and ... -
Finite element modeling of snow-pack lying on a slope, considering snow as isotropic compressible viscoplastic media
(NGI Publication;203, Chapter, 1998)A simple extension of the von Mises plasticity is proposed in which the equivalent stress is defined as a function of deviatoric and hydrostatic stresses. Non-linearity is accounted by extending NortonHoff equation for ... -
First geophysical investigations to study a fragile Pomor cultural heritage site at Russekeila – Kapp Linné), Svalbard
(Peer reviewed; Journal article, 2023)With climate warming, the cultural heritage sites of the Arctic are in great danger. Extensive research is needed to study such sites. The archaeological site at Russekeila – Kapp Linné, Svalbard was selected for the survey ... -
First steps in the development of standardised processes for life cycle assessments of geotechnical works
(Peer reviewed; Journal article, 2022) -
First-time landslides in Vashon advance glaciolacustrine deposits, Puget Lowland, U.S.A.
(Peer reviewed; Journal article, 2018)Advance glaciolacustrine (Qglv) deposits from the last continental glaciation are widespread in the densely populated Puget Lowland and are prone to shallow landsliding. Much less frequently in historic time, new landslides ... -
Five decades of warming: impacts on snow cover in Norway
(Journal article, 2018)Northern latitudes are experiencing faster warming than other regions in the world, which is partly explained by the snow albedo feedback. In Norway, mean temperatures have been increasing since the 1990s, with 2014 being ... -
Flame curtain kilns produce biochar from dry biomass with minimal methane emissions
(Peer reviewed; Journal article, 2023) -
Flow cone – new CPTU add-on module trialled in Halden silt
(Chapter, 2022) -
Fluid flow and pore pressure development throughout the evolution of a trough mouth fan, western Barents Sea
(Peer reviewed; Journal article, 2018)Using a combination of geophysical and geotechnical data from Storfjorden Trough Mouth Fan off southern Svalbard, we investigate the hydrogeology of the continental margin and how this is affected by Quaternary glacial ... -
Fluid‐Rock Interactions in Clay‐Rich Seals: Impact on Transport and Mechanical Properties
(Chapter, 2018)Fluid‐rock interaction in low‐permeable clay‐rich seal units is an important topic for the evaluation of the long‐term seal integrity during geological storage of CO2. In low‐permeable sealing units, the diffusion of CO2 ...