Browsing Institutt for geofag by Title
Now showing items 440-459 of 2342
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)We use eighteen timescale-synchronised near-surface temperature reconstructions spanning 10–50 thousand years before present to clarify the regional expression of Dansgaard-Oeschger (D-O) and Heinrich (H) events in the ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)Ongoing climate change is causing fundamental changes in the Arctic, some of which can be hazardous to nature and human activity. In the context of Earth surface systems, warming climate may lead to rising ground temperatures ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Regularization and interpolation of 3D offset classes prior to imaging are an important and challenging step in the marine seismic data processing flow. Here we describe how to perform this task using a deep neural network, ...
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(Master thesis / Masteroppgave, 2022)Structural de-risking of Carbon Capture and Storage (CCS) prospects are highly dependent on the effects of faults. Seismic scale faults will dictate how injected CO2 migrate within the subsurface. Depending on fault ...
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(Doctoral thesis / Doktoravhandling, 2023)The below-ground geological storage of CO2 is seen as an important component to the long-term reduction of global greenhouse gas emissions. One of the difficult tasks is to find large storage locations with good seals ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)We present a multi-temporal digital inventory of Svalbard glaciers with the most recent from the late 2000s containing 33 775 km2 of glaciers covering 57% of the total land area of the archipelago. At present, 68% of the ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)In this paper, we semi-automatically classify clean and debris-covered ice for 145 glaciers within Hohe Tauern National Park in the Austrian Alps for the years 1985, 2003, and 2013. We also map the end-summer transient ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Extreme precipitation over the Svalbard Archipelago in the Arctic can have severe consequences for the ecosystem and society. In recent years several extreme precipitation events have been observed at Ny Ålesund, a weather ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)Anisotropy of magnetic susceptibility (AMS) and anisotropy of magnetic remanence (AARM and AIRM) are efficient and versatile techniques to indirectly determine rock fabrics. Yet, deciphering the source of a magnetic fabric ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Large Igneous Province eruptions coincide with many major Phanerozoic mass extinctions, suggesting a cause-effect relationship where volcanic degassing triggers global climatic changes. In order to fully understand this ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)Viscous crustal flow can exhume once deeply buried rocks in postorogenic metamorphic core complexes (MCCs). While migmatite domes record the flow dynamics of anatectic crust, the mechanics and kinematics of solid‐state ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)North-east Java is part of a large sedimentary basin containing hydrocarbon provinces that feature diffuse hydrothermal systems, mud volcanoes, and degassing sites. Seismic profiles acquired to explore the basin reveal a ...
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(Doctoral thesis / Doktoravhandling, 2022)During seismic acquisition, reflected waves from the subsurface are recorded by sensors in seismic cables in the water column. The measured data are used to create images of the subsurface to explore natural resources. ...
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(Doctoral thesis / Doktoravhandling, 2022)Seismic data contain information about elastic properties and the structural patterns of the subsurface. However, before we get an image of the subsurface, seismic data goes through many processing steps that consist of ...
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(Doctoral thesis / Doktoravhandling, 2022)During seismic acquisition, reflected waves from the subsurface are recorded by sensors in seismic cables in the water column. The measured data are used to create images of the subsurface for the exploration of natural ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)Energy efficiency is crucial to greenhouse gas (GHG) emission pathways reported by the Intergovernmental Panel on Climate Change. Electrical overload frequently occurs and causes unwanted outages in distribution networks, ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)Abstract Vesteris Seamount is a large Quaternary intraplate submarine volcano in the SW Greenland Sea, about 1,000 km NE of Iceland and 300 km NW of the Mohn's spreading ridge, whose mode of formation remains unsolved. We ...
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Deep versus shallow origin of gravity anomalies, topography and volcanism on Earth, Venus and Mars (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2010)The relation between gravity anomalies, topography and volcanism can yield important insights about the internal dynamics of planets. From the power spectra of gravity and topography on Earth, Venus and Mars we infer that ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)First‐order variations in sea level exhibit amplitudes of ∼200 m over periods that coincide with those of supercontinental cycles (∼300–500 Myr). Proposed mechanisms for this sea level change include processes that change ...