Blar i Faculty of Mathematics and Natural Sciences på tittel
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Lack of population genetic structure of lumpfish along the Norwegian coast: A reappraisal based on EST-STRs analyses
(Journal article; Peer reviewed, 2022)Lumpfish is now the single most important cleaner fish species to date and there is an extensive lumpfish translocation along the Norwegian coast. A reliable baseline information about the population genetic structure of ... -
A lagrangian approach to extremal curves on stiefel manifolds
(Journal article; Peer reviewed, 2021)A unified framework for studying extremal curves on real Stiefel manifolds is presented. We start with a smooth one-parameter family of pseudo-Riemannian metrics on a product of orthogonal groups acting transitively on ... -
Lagrangian dynamics for solid multi-body systems with the Moving Frame formalism
(Master thesis, 2018-12-11)Classical mechanics is the study of the motion of particles, solid bodies or of systems of bodies, and the effects of forces and moments on them. The dynamical behavior may either be studied by the application of Newtonian ... -
Lagrangian matches between observations from aircraft, lidar and radar in a warm conveyor belt crossing orography
(Journal article; Peer reviewed, 2021)Warm conveyor belts (WCBs) are important airstreams in extratropical cyclones, often leading to the formation of intense precipitation and the amplification of upper-level ridges. This study presents a case study that ... -
Lagrangian Measurement of Waves and Near Surface Turbulence from Acoustic Instruments
(Peer reviewed; Journal article, 2015-12-02)We demonstrate high-resolution measurements of upper ocean flow and turbulence using a Lagrangian drifter. A spherical buoy as a quasi-wave following drifter mitigate the contaminations induced by wave orbital velocities ... -
Lagrangian Measurements of Orbital Velocities in the Surf Zone
(Journal article; Peer reviewed, 2021)Eulerian and Lagrangian measurements of orbital velocities in waves approaching a beach are analyzed with the goal of understanding the relative influence of wave-by-wave variations in mean-water level, wave height and ... -
The Lagrangian particle dispersion model FLEXPART version 10.4
(Peer reviewed; Journal article, 2019-12-02)The Lagrangian particle dispersion model FLEXPART in its original version in the mid-1990s was designed for calculating the long-range and mesoscale dispersion of hazardous substances from point sources, such as those ... -
A Lagrangian study of liquid flow in a reverse-flow hydrocyclone using positron emission particle tracking
(Peer reviewed; Journal article, 2015-01-10)In this study the liquid flow in a reverse-flow hydrocyclone is studied experimentally using the Lagrangian approach. Resin beads with densities that are close to the density of the liquid in which they move, i.e. ... -
The Lagrangian, constraint qualifications and economics
(Journal article; Peer reviewed, 2022)Considering constrained choice, practitioners and theorists frequently invoke a Lagrangian to generate optimality conditions. Regular use of that vehicle requires, however, some constraint qualification. Yet many economists ... -
Lake Sediments Reveal Large Variations in Flood Frequency Over the Last 6,500 Years in South-Western Norway
(Journal article; Peer reviewed, 2020)Lake sediments can retain imprints of past floods, enabling reconstructions that span well-beyond instrumental time series. Time series covering thousands of years can document the natural range of flood variability, which ... -
Lake sediments with Azorean tephra reveal ice-free conditions on coastal northwest Spitsbergen during the Last Glacial Maximum
(Peer reviewed; Journal article, 2019-10-23)Lake sediments retrieved from the beds of former nonerosive ice sheets offer unique possibilities to constrain changes in the extent and style of past glaciation, and place them in an absolutely dated context. We present ... -
Lake stratigraphy implies an 80 000 yr delayed melting of buried dead ice in northern Russia
(Peer reviewed; Journal article, 2003)Sediment cores from lakes Kormovoye and Oshkoty in the glaciated region of the Pechora Lowland, northern Russia, reveal sediment gravity flow deposits overlain by lacustrine mud and gyttja. The sediments were deposited ... -
Lake-sediment evidence for local and remote sources of atmospherically deposited pollutants on Svalbard
(Peer reviewed; Journal article, 2004)Twenty-one lakes along the west coast of Svalbard were cored between 28 July and 14 August 1995. Five cores were 210Pb dated and analysed for spheroidal carbonaceous particles (SCPs), indicators of deposition from fossil-fuel ... -
Lake-sediment records of recent environmental change on Svalbard: results of diatom analysis
(Peer reviewed; Journal article, 2004)Surface sediments from 23 lakes on Svalbard were analysed for diatoms. 182 taxa were found but samples generally have a low richness, with the majority of sites dominated by benthic genera such as Fragilaria, Navicula, and ... -
\lambda Polarization in Heavy Ion Collisions
(Master thesis, 2015-06-02)Results on transverse lambda polarization in peripheral heavy ion collisions in an exact, analytic, self-similar rotating hydrodynamics model using the gradient and curl of the inverse temperature field. We estimate the ... -
A Lanczos-view on Independent Component Analysis of fMRI Data
(Master thesis, 2010-06-04)Analysis of resting-state fMRI data is commonly done by a combination of the two signal processing methods Principal Component Analysis (PCA) and Independent Component analysis (ICA). In this thesis, a possible error caused ... -
Land Surface Data Assimilation of Satellite Derived Surface Soil Moisture : Towards an Integrated Representation of the Arctic Hydrological Cycle
(Doctoral thesis, 2019-10-21)The ability to accurately determine soil water content (soil moisture) over large areas of the Earth’s surface has potential implications in meteorology, hydrology, water and natural hazards management. The advent of ... -
Land-use and climate impacts on drought resistance and resilience in coastal heathland ecosystems
(Doctoral thesis, 2021-12-15)Background: Coastal heathlands of north-western Europe are semi-natural landscapes of high conservation value. These are ancient and historically widespread landscapes, but anthropogenic land-use and climate change are now ... -
Langmuir Turbulence in the HYCOM Ocean Model
(Master thesis, 2017)The impact of parameterising the turbulent mixing induced by surface wave-driven Langmuir turbulence is investigated for a basin-scale configuration of the hybrid-coordinate ocean circulation model HYCOM. Two-year, non-data ... -
Lanthanide complex-incorporated periodic mesoporous organosilica nanospheres with tunable photoluminescence
(Peer reviewed; Journal article, 2015-09-23)A series of nanoscale periodic mesoporous organosilica spheres (PMOSs) have been synthesized via the co-condensation of N,N-bis(trimethoxysilylpropyl)-2,6-pyridine dicarboxamide (DPA-Si) and tetraethyl orthosilicate (TEOS) ...