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Now showing items 2301-2332 of 2332
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Doming, a superimposition of a scene-wide dome-shaped bias to the elevation data, is a classical problem in photogrammetry, especially when using the auto-calibration and bundle adjustment typical of the Structure-from-Motion ...
Critical role of continental slopes in halocline and eddy dynamics of the Ekman-driven Beaufort Gyre
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The Beaufort Gyre (BG) is a large‐scale bathymetrically constrained circulation driven by a surface Ekman convergence that creates a bowl‐shaped halocline and stores a significant portion of the Arctic Ocean's freshwater. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The Cao Bang Basin is the northernmost of the basins related to the Cao Bang-Tien Yen Fault Zone in northern Vietnam. The basin is filled with a thick series of continental deposits. However, the exact age of the sedimen-tary ...
(Doctoral thesis / Doktoravhandling, 2021)
Tides are important drivers for the motion in many coastal seas. While tides mainly move water back and forth, the interaction between tidal currents and topography might induce residual currents and fluxes, providing an ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
We investigate the effect of waves on the airflow in horizontal two-phase pipe flow. Velocity fields in the gaseous phase were acquired by particle image velocimetry (PIV), while interfacial elevation was measured with ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
The increasing awareness of the many damaging aspects of climate change has prompted research into ways of reducing and reversing the anthropogenic increase in carbon concentrations in the atmosphere. Most emission scenarios ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
Isotopic dating of monazite and garnet from high-pressure metamorphic rocks exposed in the northern part of the Saxothuringian palaeo-suture in the Bohemian Massif revealed a diachronous metamorphism of various rock types ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Unconformities, by definition, correspond to erosional or nondepositional surfaces, which separate older strata below, from younger rocks above, encapsulating significant time gaps. However, recent studies have highlighted ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
A hitherto unrecognized Paleogene outcrop has been discovered at Sylfjellet, a mountain located at the northern side of Isfjorden, Svalbard. The strata, which cover an area of 0.8 km2, have until now been assigned to the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Mantle plumes upwelling beneath moving tectonic plates generate age-progressive chains of volcanos (hotspot chains) used to reconstruct plate motion. However, these hotspots appear to move relative to each other, implying ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
MgO makes up about 20% of the Earth’s lower mantle; hence, its rheological behaviour is important for the dynamics and evolution of the Earth. Here, we investigate the strength of twin boundaries from 0 to 120 GPa using ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
Stylolites are ubiquitous geo-patterns observed in rocks in the upper crust, from geological reservoirs in sedimentary rocks to deformation zones, in folds, faults, and shear zones. These rough surfaces play a major role ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
The statistics and dynamics of fractures formed during the accelerated maturation of kerogen-rich shale was investigated by heating Green River Shale (R-8 unit, Piceance Basin, northwestern Colorado) core samples while 3D ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
During progressive burial, low permeability organic-rich shale rocks evolve chemically and physically as the temperature and stress increase and organic matter matures. The transformation of organic matter into hydrocarbon, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
Remote sensing fractional snow cover area (fSCA) has been increasingly used to get an improved estimate of the spatiotemporal distribution of snow water equivalent (SWE) through reanalysis using different data assimilation ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
The continuation of the Caledonides into the Barents Sea has long been a subject of discussion, and two major orientations of the Caledonian deformation fronts have been suggested: NNW-SSE striking and NE-SW striking. A ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Air bubble penetration depths are investigated with a bottom‐mounted echosounder at a seabed observatory in northern Norway. We compare a 1‐year time series of observed bubble depth against modeled and estimated turbulent ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
On Svalbard (Arctic Norway), a pilot-scale research project has been established to investigate the feasibility of storing locally produced CO2 in geological aquifers onshore. Drilling, geophysical and geological data ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The boron isotopic composition of tourmaline and hambergite (Be2BO3[OH,F]) from peraluminous (n = 12), peralkaline (n = 1), and peralkaline nepheline syenite (n = 16) pegmatites has been measured by secondary ion mass ...
(Doctoral thesis / Doktoravhandling, 2021)
Glacier hydrology describes water movement around, on, in and under glaciers. It plays an important role for glacier flow and thus ice transport into the sea and the associated sea level rise. It is further relevant for ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
SE Asia comprises a heterogeneous assemblage of fragments derived from Cathaysia (Eurasia) inthe north and Gondwana in the south, separated by suture zones representing closed former ocean basins.The western part of the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract Ice aprons are defined as very small ice bodies covering steep rock slopes. They have only been the subject of increased scientific interest for a few years, despite the fact that they are a condition for ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract. Subglacial floods cause seismic tremors that can be located and tracked in space and time using a seismic array. Here, we shed light on the generating mechanisms of the seismic signals observed during the largest ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract Plumes are domains where hotter material rises through Earth´s mantle, heating also the moving lithospheric plates that may experience thinning or even continental breakup. In particular, the Iceland plume in the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract
Taking advantage of the Raman resonance effect, we employed 405 and 532 nm excitations to (1) identify sulfur species present in lazurite, haüyne, and synthetic ultramarine blue pigments and (2) investigate ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract
Studying the geology of a terrestrial body and its evolution requires being able to set up a chronology. Crater statistics is a powerful tool to do so. However, calibration of this method, which is derived ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
Imaging spectroscopy allows us to identify surface materials by analyzing the spectra resulting from the light–material interaction. In this preliminary study, we analyze a pair of hyperspectral cubes acquired by PRISMA ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
During the late Neogene, global climate underwent a long-term transition to cooler climates that culminated in the Quaternary icehouse conditions. In the East Asian terrestrial realm, atmospheric dustiness increased, and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Faults are complex structures that substantially influence the mechanical behavior and hydraulic connectivity of rock formations. Therefore, studying faults is important for a variety of disciplines such as geoscience, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The Draupne Formation is the most important source and cap rock for North Sea hydrocarbon plays. It also provides the primary seal for potential CO2 storage on the Norwegian Continental Shelf, but it has been a concern ...