Browsing Institutt for geofag by Title
Now showing items 480-499 of 2336
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)Upper Palaeozoic strata are potential sources for hydrocarbon plays on the Norwegian Barents Shelf. The island of Bjørnøya (Bear Island) is located on the western margin of the Barents Shelf and represents an exposed part ...
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(Master thesis / Masteroppgave, 2014)The uppermost Ordovician (Hirnantian) of the Oslo Region has been studied at three selected outcrops in the Husbergøya, Langøyene and Solvik formations on the islands Hovedøya, Rambergøya and Langøyene in the inner Oslofjord. ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)We use Lattice Boltzmann Method (LBM) MRT and Cumulant schemes to study the performance and accuracy of single-phase flow modeling for propped fractures. The simulations are run using both the two- and three-dimensional ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)Hydropower operating rules can guide reservoir release and storage for maximizing hydropower generation. The optimal hydropower operating rules are usually derived by numerical hydropower simulation methods. This study ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)Urban infrastructure traditionally relies on stationary rainfall intensity-duration-frequency (IDF) curves. However, this assumption is challenged by climate change and urbanization. Many studies tried to update IDF using ...
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(Doctoral thesis / Doktoravhandling, 2011)The velocity of glaciers is important for many aspects in glaciology. Mass accumulated in the accumulation area is transported down to the ablation area by deformation and sliding due to the gravitational force, and hence ...
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(Master thesis / Masteroppgave, 2022)
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)Abstract In traditional flood frequency analysis, a minimum of 30 observations is required to guarantee the accuracy of design results with an allowable uncertainty, however, there has not been a recommendation ...
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(Journal article / Tidsskriftartikkel / PublishedVersion, 2014)Mass loss from glaciers and ice sheets currently accounts for two-thirds of the observed global sea-level rise and has accelerated since the 1990s, coincident with strong atmospheric warming in the Polar Regions. Here we ...
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(Master thesis / Masteroppgave, 2019)Løsmasseskred har potensiale til å forårsake stor skade på mennesker, bygninger og infrastruktur. Slike hendelser ansees derfor som et potensielt stort samfunnsproblem. Hyppigheten av skredhendelser er i tillegg forventet ...
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(Doctoral thesis / Doktoravhandling, 2017)Europe has warmed faster than the rest of the globe during the last decades, especially when considering trends for each season separately. In addition to warming caused by greenhouse gas emissions, the atmospheric circulation ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)Understanding the long-term variability of streamflow and its response to human activities in water-limited areas is essential for socio-hydrologic models’ development. In this study, a framework for the detection and ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Whether or not large-scale vegetation restoration will lead to a decrease in regional terrestrial water storage is a controversial topic. This study employed the Geodetector model, in conjunction with observed and satellite ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Abstract Both flood magnitude and frequency might change under the changing environment. In this study, a procedure combining statistical methods, flood frequency analysis and attribution analysis was proposed ...
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Detection and Attribution of Norwegian Annual Precipitation Variability Related to Teleconnections (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Detection and attribution of precipitation variability are fundamentally challenging, especially in the presence of complex nonlinear relationships between precipitation variability and large-scale teleconnections. The aim ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)Noachian surfaces on Mars exhibit vertical assemblages of weathering horizons termed as weathering profiles; this indicates that surface water caused alteration of the rocks that required a different, warmer climate than ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)The dynamic control of reservoir water level during flood seasons (WLFS) allows a trade‐off between flood control and water resources conservation. In this process, the WLFS dynamic control boundaries are key parameters. ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)Combined (U-Th)/He and U-Pb detrital zircon geochronological data are reported from Ordovician to Devonian strata of the Severnaya Zemlya archipelago to address the paleogeography of the Kara Terrane in the Russian High ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2016)U–Pb and Lu–Hf signatures of detrital zircon from conglomerates and sandstones of the Ordovician Natal Group, South Africa were determined using laser ablation inductively coupled plasma mass spectrometry. The basal ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)The age and properties of detrital zircon in a sediment reflect properties of the rocks in which the zircon crystallized, and not necessarily the immediate precursor of the host sediment. Where clastic sediments are recycled, ...