Browsing Institutt for geofag by Title
Now showing items 608-627 of 2329
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)The Greenland ice sheet contributes increasingly to global sea level rise. Its history during past warm intervals is a valuable reference for future sea level projections. We present ice sheet simulations for the Eemian ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)Understanding the behavior of the Greenland ice sheet in a warmer climate, and particularly its surface mass balance (SMB), is important for assessing Greenland’s potential contribution to future sea level rise. The Eemian ...
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(Master thesis / Masteroppgave, 2008)As global warming causes both glaciers and sea ice to decay, increased freshwater flux into the North Atlantic is expected. In addition precipitation at high latitudes is predicted to increase under global warming as well, ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)Fracture networks inside geological CO2 storage reservoirs can serve as primary fluid flow conduit, particularly in low-permeability formations. While some experiments focused on the geophysical properties of brine- and ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)Fracture networks inside the caprock for CO2 storage reservoirs may serve as leakage pathways. Fluid flow through fractured caprocks and bypass conduits, however, can be restrained or diminished by mineral precipitations. ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)Pore pressure in fine-grained rocks is important with respect to drilling problems such as kicks, blowouts, borehole instability, stuck pipe and lost circulation. In this study, a succession of overpressured, fine-grained, ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)Urbanization has resulted in increased contaminant run-off in densely populated areas. Climate change is expected to result in a higher frequency of extreme weather events including torrential rainfall and storms. The ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)We have studied damage zones of two active faults, Baza and Padul faults in Guadix-Baza and Granada basins, respectively, in South Spain. Mineral and microstructural characterization by X-ray diffraction and field emission ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Although geological CO2 sequestration is an essential solution for reducing anthropogenic carbon dioxide from the atmosphere, the method needs critical evaluation of injection-induced mechanical risks for safe and reliable ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)Fractures are the main flow path in rocks with very low permeability, and their hydrodynamic properties might change due to interaction with the pore fluid or injected fluid. Existence of minerals with different reactivities ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)The effects of the coefficient of friction and porosity on impact cratering are not sufficiently considered in scaling laws that predict the crater size from a known impactor size, velocity, and mass. We carried out a ...
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(Master thesis / Masteroppgave, 2018)Dynamical runout models are essential tools in landslide hazard and risk assessment, because they allow us to simulate the motion of past landslides and to predict the motion of future landslides. Runout distances obtained ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)Accurate and reliable multi-step-ahead flood forecasting is beneficial for reservoir operation and water resources management. The Encoder-Decoder (ED) that can tackle sequence-to-sequence problems is suitable for ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)Mantle flow is a key feature that can affect melt production and composition in and around subduction zones. In this study, I use three-dimensional numerical models to investigate the role of mantle flow on subduction-related ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)Potential field data, reprocessed regional 2D seismic reflection profiles and 3D seismic tied to wells were used to study the late Devonian-Permian development of the Nordkapp Basin in Barents Sea. The composite basin can ...
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(Doctoral thesis / Doktoravhandling, 2015)Carbon capture and storage (CCS) in geological reservoirs – especially saline aquifers – is a key midterm solution to mitigate climate changes caused by increasing anthropogenic CO2. In order to ensure that a CCS project ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Abstract Earth's upper mantle rheology controls lithosphere‐asthenosphere coupling and thus surface tectonics. Rock deformation experiments and seismic anisotropy measurements indicate that composite rheology (co‐existing ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)Hydration of a nominally dry rock can cause expansion of the solid volume, resulting in reaction‐induced fracturing and an associated increase in the porosity and permeability of the rock. We study the effect of confinement ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)In characterizing subsurface reservoirs for CO2 storage, the geological heterogeneity distribution is of importance with respect to the injectivity and migration paths. The object of this study is a saline aquifer of ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)Abstract. In continuous permafrost lowlands, thawing of ice-rich deposits and melting of massive ground ice lead to abrupt landscape changes called thermokarst, which have widespread consequences on the thermal, hydrological, ...