Browsing Institutt for geofag by Title
Now showing items 500-519 of 2336
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(Master thesis / Masteroppgave, 2023)There has been a steady increase of marine activity throughout the Arctic Ocean during the last decades, and maritime end users are requesting skillful high-resolution sea ice forecasts to ensure operational safety. Different ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Mechanical properties of petroleum reservoirs can be determined via static techniques based on laboratory triaxial tests under reservoir conditions. Dynamic approaches represent an alternative in cases where such static ...
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(Doctoral thesis / Doktoravhandling, 2016)
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(Master thesis / Masteroppgave, 2008)The Eocene Ainsa Basin is situated in the central south Pyrenees formed by collision of the Iberian plate with the Eurasien plate during Late Cretaceous to early Miocene times. The basin was formed due to movements of the ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2021)Climate change and human activities have together altered the river hydrological regime and consequently threatened the health of river ecosystems. Quantifying the impact of climate change and human activities on river ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)Grain size reduction due to cataclasis is a key process controlling fault frictional properties during the seismiccycle. We investigated the role of cleavage planes on fracturing and microstructural evolution during ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)Classical models of lithosphere thinning predict deep synrift basins covered by wider and thinner post‐rift deposits. However, synextensional uplift and/or erosion of the crust are widely documented in nature (e.g. the ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)Abstract. Aerosol–cloud interactions, including the ice nucleation of supercooled liquid water droplets caused by ice-nucleating particles (INPs) and macromolecules (INMs), are a source of uncertainty in predicting future ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2021)Abstract This contribution describes the development of Norwegian Seismic Array (NORSAR), from its origin 50 yr ago as a project for installing a single seismic array in southern Norway to a seismological research ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)Rock physics analyses of data from a wildcat well 7117/9-1 drilled in the Senja Ridge area, located in the Norwegian Barents Sea, reveal changes in stiffness within the fine-grained Paleogene Sotbakken Group sediments, ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)Estimating the long-term mass balance of the high-Arctic Svalbard archipelago is difficult due to the incomplete geodetic and direct glaciological measurements, both in space and time. To close these gaps, we use a coupled ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Extreme conditions inside ice giants such as Uranus and Neptune can result in peculiar chemistry and structural transitions, e.g., the precipitation of diamonds or superionic water, as so far experimentally observed only ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2010)Diamonds are formed under high pressure more than 150 kilometres deep in the Earth’s mantle and are brought to the surface mainly by volcanic rocks called kimberlites. Several thousand kimberlites have been mapped on various ...
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(Doctoral thesis / Doktoravhandling, 2018)Seismic signals are generally spread across many data samples of the recorded data. Applying a mathematical transformation to the data can however concentrate them on few samples only of the transform domain. Such ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)In the French north-western Alps, several lakes of glacial origin, such as Aiguebelette and La Thuile, present some mass-transport deposits within their sedimentary sequences. These event layers can result from lake sediment ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)Fresh and aged diesel soot particles have different impacts on climate and human health. While fresh diesel soot particles are highly aspherical and non-hygroscopic, aged particles are spherical and hygroscopic. Aging and ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Abstract. We examine differences among reanalysis high-cloud products in the tropics, assess the impacts of these differences on radiation budgets at the top of the atmosphere and within the tropical upper troposphere and ...
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(Master thesis / Masteroppgave, 2023)Predicting near-future rainfall, defined as nowcasts, is essential to various industries and sectors, including aviation safety, agriculture, flood management, and the general public. Traditional nowcasts are calculated ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Structure-from-motion (SfM) photogrammetry enables the cost-effective digital characterisation of seismic- to sub-decimetre-scale geoscientific samples. The technique is commonly used for the characterisation of outcrops, ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Third year geoscience students were introduced to digital tools for fieldwork, Fieldmove on iPads, in a capstone field mapping course at Oslo University, Norway. Despite little prior experience with digital tools for ...