Browsing Institutt for geofag by Title
Now showing items 1811-1830 of 3035
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(Master thesis / Masteroppgave, 2014)The purpose of this study is to improve the basic understanding of the propagating mechanisms behind seismic interference noise. A Matlab code of the normal mode solution in Pekeris waveguide model was developed and numerical ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)ASPECT (Advanced Solver for Problems in Earth's ConvecTion) is a massively parallel finite element code originally designed for modeling thermal convection in the mantle with a Newtonian rheology. The code is characterized ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)Conventional water infrastructure designs for flood and low flows are usually based on the assumption of stationarity of extreme events. However, recent evidence suggests that the influences of climate variability and human ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Censored data (CD) of floods, that is, the combination of systematic data (SD) and historical data, can help improve the robustness of flood frequency analysis, due to its temporal information expansion. However, in ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)Most researches on regional flood frequency analysis (RFFA) have proved that the incorporation of hydrologic information (e.g., catchment attributes and flood records) from different sites in a region can provide more ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Abstract The 21st century has brought new challenges and opportunities and has also increased demands on the Nordic hydrological community. Our hydrological science focus and approaches need rethinking and ...
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(Master thesis / Masteroppgave, 2007)Rifting of the Paleozoic Gondwana supercontinent during Mesozoic time ended eventually with the breakup of Africa and South America, leading to passive margin formation and to the creation of the South Atlantic Ocean (e.g. ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)The northeast Atlantic encompasses archetypal examples of volcanic rifted margins. Twenty-five years after the last ODP (Ocean Drilling Program) leg on these volcanic margins, the reasons for excess melting are still ...
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(Master thesis / Masteroppgave, 2016)On geological time scales, the global ocean circulation is controlled by changes in paleobathymetry, including opening and closure of strategic ocean gateways and formation of new ocean basins. In the Cenozoic time (65 - ...
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(Master thesis / Masteroppgave, 2006)The South Atlantic rift system developed during the Mesozoic breakup of Africa and South America. These continental masses belonged to the Gondwana Palaeozoic super-continent. Rifting started in the south, and propagated ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)Permafrost is a key element of the cryosphere and an essential climate variable in the Global Climate Observing System. There is no remote-sensing method available to reliably monitor the permafrost thermal state. To ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)The Northern Svalbard Composite Tectono-Sedimentary Element (CTSE) comprises Proterozoic, Early Paleozoic, and Devonian sedimentary rocks preserved in northern Svalbard and on the adjacent shelf margin. Here, the sedimentary ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)East Java is characterised by a complex interaction of volcanic and tectonic processes and it is marked by isolated eruptive centres scattered across the back-arc sedimentary basins. In 2006 a large sediment hosted geothermal ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Geomagnetically induced currents (GIC) driven by geoelectric fields pose a hazard to ground-based infrastructure, such as power grids and pipelines. Here, a new method is presented for modelling geoelectric fields in near ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)Since the 1970s, it has been shown that calcium phosphate crystals nucleate from one or several early amorphous calcium phosphate phases into several in vivo and in vitro systems. However, the precise chemical composition, ...
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(Master thesis / Masteroppgave, 2005)Next to air, water is the most essential of Man’s requirements for life. The amount of water necessary to society has increased as population and urbanisation have increased. Today, conflicting interest on water issues ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)When low‐permeability and organic‐rich rocks such as shale experience sufficient heating, chemical reactions including shale dehydration and maturation of organic matter lead to internal fluid generation. This may cause ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Alpine glaciers are shrinking and rapidly loosing mass in a warming climate. Glacier modeling is required to assess the future consequences of these retreats on water resources, the hydropower industry and risk management. ...
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Numerical modelling of continental collision with an application to the Zagros fold-and-thrust belt (Doctoral thesis / Doktoravhandling, 2014)
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(Master thesis / Masteroppgave, 2019)Despite its similarities in bulk properties to Earth, Venus portrays a fundamentally different mode of surface tectonics. Venus is currently known to be operating in stagnant lid mode of mantle convection. However, it is ...