Browsing Institutt for geofag by Title
Now showing items 1119-1138 of 2342
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)We present a revised tectonostratigraphy of the Jan Mayen microcontinent (JMMC) and its southern extent, with the focus on its relationship to the Greenland–Iceland–Faroe Ridge area and the Faroe–Iceland Fracture Zone. The ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)The stability of a horizontally and vertically sheared surface jet is examined, with a focus on the vertical structure of the resultant eddies. Over a flat bottom, the instability is mixed baroclinic/barotropic, producing ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Natural disasters, including droughts and floods, have caused huge losses to mankind. Hydrological modelling is an indispensable tool for obtaining a better understanding of hydrological processes. The DEM-based routing ...
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(Doctoral thesis / Doktoravhandling, 2020)
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Jurassic fast polar shift rejected by a new high-quality paleomagnetic pole from southwest Greenland (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)A selective compilation of paleomagnetic data from North America indicates that a vast amount of rapid polar motion occurred in Late Jurassic time. The over 30° polar shift that accumulated during a relatively short time ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)The Fingerdjupet Subbasin in the southwestern Barents Sea sits in a key tectonic location between deep rifts in the west and more stable platform areas in the east. Its evolution is characterized by extensional reactivation ...
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(Master thesis / Masteroppgave, 2007)I denne oppgaven ble kalibrerings funksjonene i Photomodeler og Nlhbunt vurdert for bruk innenfor nærfotogrammetriske formål på Universitetet i Oslo. Universitetet i Oslo disponerer et digitalt Canon kamera og et analogt ...
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(Master thesis / Hovedoppgave, 2005)Nordre Rena er gjennom de siste hundre åra utsatt for betydelige inngrep. Dette omfattet bl.a. erosjonssikring, forbygning, senkning, utretting og kanalisering. Målet i denne oppgava er å finne ut om elva er i likevekt, ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Abstract One of the critical aspects when modeling groundwater flow in karstic aquifers is to estimate the statistics of the size of the conduits, in conjunction with the connectivity of the karst conduit network. Statistical ...
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(Master thesis / Masteroppgave, 2023)Kartlegging av kvikkleire er essensielt for å identifisere kvikkleireområder, og dermed ta nødvendige grep for å hindre skred. Denne oppgaven undersøker om «towed transient electromagnetic system» (tTEM) kan effektivisere ...
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(Master thesis / Masteroppgave, 2021)Føremålet med denne oppgåva er å undersøke verknad av ulike faktorar i prosesseringsprogram for GNSS, t.d. korleis ulike prosesseringsprogram framstiller resultata, og om bruk av fleire GNSS-konstellasjonar og ulike ...
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(Book / Bok / PublishedVersion; Peer reviewed, 2007)In this, the first of six volumes, the main results of the excavations which the University of Oslo carried out at Kaupang 1998–2003 are presented. A completely new picture is put forward of the port that Ohthere (Óttarr) ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2021)A significant knowledge gap exists when analysing and predicting the hydraulic behaviour of faults within carbonate reservoirs. To improve this, a large database of carbonate fault rock properties has been collected from ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)Climate model studies of the consequences of solar geoengineering are central to evaluating whether such approaches may help to reduce the harmful impacts of global warming. In this study we compare the sunshade solar ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)Key observational indicators of climate change in the Arctic, most spanning a 47 year period (1971–2017) demonstrate fundamental changes among nine key elements of the Arctic system. We find that, coherent with increasing ...
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(Chapter / Bokkapittel / AcceptedVersion; Peer reviewed, 2020)The 4D/5D interpolation and regularization methods effectively improve the quality of seismic imaging. In addition to the Fourier domain interpolation method, 5D interpolation based on the common reflection surface (CRS) ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)Abstract Glacier surges are periodic episodes of mass redistribution characterized by dramatic increases in ice flow velocity and, sometimes, terminus advance. We use optical satellite imagery to document five previously ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)A combined experimental and numerical study was undertaken to better understand the spatial distribution of secondary mineral growth along a basalt column. The work demonstrated that few and large crystals formed at random ...
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(Master thesis / Hovedoppgave, 2007)Formålet med oppgaven har vært å finne ut hvorvidt topografiske parametre kan gi et nyttig bidrag til vegetasjonskartleggingen i norske fjellandskap. Det har vært forsøkt å finne ut om vegetasjonsmønsteret styres av ...
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(Master thesis / Masteroppgave, 2005)Abstract This thesis concerns certain aspects of the production of CCN. In-cloud oxidation followed by cloud droplet evaporation is an important chemical process where sulfate is produced, and only particles with radii ...