Search
Now showing items 1-100 of 877
Evaluering av dagens metodikk for bruk av erosjon i faresonekartlegging i kvikkleireutsatte områder Restricted Access
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
Denne masteroppgaven tar for seg bruk av modellverktøy for dimensjonering av steinspranggjerder mot steinsprang. Målet med oppgaven er å kartlegge utvalgte modellverktøys egnethet, samt hvilken betydning valg av av disse ...
(Master thesis / Masteroppgave, 2023)
Flere av de tettest bebodde områdene i Norge har kvikkleire i grunnen. Økende tilflytting til disse områdene vil medføre et økt behov for kvikkleirekartlegging. Konsekvensene av kvikkleireskred kan potensielt bli svært ...
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
Carbon capture and storage (CCS) is an important technology developed to mitigate human-induced increase in atmospheric carbon dioxide concentrations. Injecting fluid carbon dioxide in geological reservoirs is one of the ...
(Master thesis / Masteroppgave, 2023)
Fen Carbonatite Complex was formed in different stages. The stage of søvite and dolomite carbonatite emplacement is believed to be accompanied by extensive deformation. However, the mechanism of carbonatite deformation is ...
Kartlegging av kvikkleire ved bruk av elektromagnetisk metode. En studie fra Gjerdrum, Romerike. Restricted Access
(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 ...
(Master thesis / Masteroppgave, 2023)
Geological CO2 storage is an important initiative to mitigate climate change. Numerical models are valuable for estimating storage capacity and for risk assessment. Due to large scales involved, simplified models are ...
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
The Ågskardet lithium pegmatite, part of the Meløy-Gomfjord pegmatite field in Nordland, is emplaced in the Caledonian Rödingsfjället nappe complex between two tectonic windows exposing Svecofennian granite gneisses. It ...
(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 ...
(Master thesis / Masteroppgave, 2023)
The S1 (Sentinel 1) and S2 (Sentinel 2) missions use high-resolution satellite imagery to map the land surface over large swaths. With a minimum 5-day and 6-day repeat time, imagery over earths land can be quickly obtained ...
(Master thesis / Masteroppgave, 2023)
Hyperbolic Lagrangian Coherent Structures (LCS) are time-dependent manifolds that organize tracer patterns in chaotic flow systems. In two-dimensional flow systems, LCSs take the shape of one-dimensional curves which act ...
(Master thesis / Masteroppgave, 2023)
The sarcopterygian fishes are today represented by the two groups Actinistia (coelacanths) and Dipnoi (lungfish). Both groups survived the end-Permian mass extinction (EPME), after which the coelacanths rapidly achieved ...
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
The Draupne Formation is dominated by deep marine shales and forms an important sealing unit for future CCS operation in the North Sea. Meanwhile, seismic mapping has clearly shown the unit to be heterogeneous in lithology, ...
(Master thesis / Masteroppgave, 2023)
The Arctic is warming at a greater rate than the global mean, and resulting increase in melt and net mass loss from glaciers and ice caps is contributing to global sea-level rise. Mass loss from runoff is influenced by ...
(Master thesis / Masteroppgave, 2023)
Haloformasjoner er optiske fenomener som kan sees på himmelen. Disse fenomenene oppstår på grunn av sollys som skinner igjennom tynne cirrusskyer. Cirrusskyer består av iskrystaller med ujevne former, i motsetning til ...
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
Acid rock drainage (ARD) represents a significant environmental concern arising from the excavation of sulfide-bearing rocks, which, upon exposure to atmospheric conditions, catalyzes sulfide oxidation, leading to the ...
(Master thesis / Masteroppgave, 2023)
This study analyses automatically detected avalanche deposits in Sentinel-1 SAR images by the SatSkred algorithm from the three winter seasons 2018/19, 2019/20 and 2020/21. SatSkred allows for near-real-time automatic ...
(Master thesis / Masteroppgave, 2023)
This thesis addresses how minor faults affect CO2 migration. To achieve this goal, the study combines a detailed seismic interpretation of an isolated fault (F1) located in the Aurora CO2 storage site, complimented with ...
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
Large scale landslides in quick and sensitive clays have the tendancy toward retrogressive failure, sometimes with catastrphic consequences, such as in the 2020 Gjerdrum landslide. Modeling retrogressive slope failure using ...
(Master thesis / Masteroppgave, 2023)
Ozon spelar ei avgjerande rolle i atmosfæren både i stratosfæren og troposfæren. Denne avhandlinga undersøker troposfærisk ozon over det tropiske Atlanterhavet ved hjelp av observasjonar, trajektoriar og den norske ...
(Master thesis / Masteroppgave, 2023)
Quick clay landslides may have major consequences on human civilization and are responsible for some of the most damaging natural disasters in Norway. Quick clay hazard zones in Norway are mapped as either low-, medium-, ...
(Master thesis / Masteroppgave, 2023)
Providing temporal data of potential rock slope instabilities is important for assessing their dynamics and improving projections. Acquiring slope movement data prior to the advent of satellite radar can often only be found ...
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
The main objective of this thesis is to investigate the influence of future climate on slope stability, define slope stability thresholds, and identify triggering factors leading to slope failure at the Eidsvoll case study. ...
(Master thesis / Masteroppgave, 2023)
A number of studies have shown that the boreal forest in North America has experienced a nearly two-fold increase in burned area over the past 60 years, with a corresponding rise in the number of large fires. Permafrost ...
(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 ...
(Master thesis / Masteroppgave, 2023)
Strukturmark i form av sirkler, polygoner og striper har lenge vært et fascinerende forskningsområde, og denne masteroppgaven utforsker potensialet av nyere metoder som fjernanalyse for å analysere disse strukturene i tid ...
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
Snow is an important element in the earth system, and especially in the water cycle. Therefore, hydrological models are dependent to accurately represent snow. Prediction of hydrological behavior in ungauged basins remains ...
(Master thesis / Masteroppgave, 2022)
The Tiddlybanken Basin in the southeastern Norwegian Barents Sea is an excellent example of a salt-influenced rift basin, salt structure evolution, and rim-syncline stratigraphic accumulation. Due to increased subsidence ...
(Master thesis / Masteroppgave, 2022)
(Master thesis / Masteroppgave, 2022)
(Master thesis / Masteroppgave, 2022)
(Master thesis / Masteroppgave, 2022)
Temperature inversions prevents vertical mixing and thereby the distribution and dilution of pollutants, and can cause health hazardous concentrations of NO2 to accumulate. Policies have been implemented to reduce the ...
(Master thesis / Masteroppgave, 2022)
(Master thesis / Masteroppgave, 2022)
(Master thesis / Masteroppgave, 2022)
Flomberegninger for små urbane nedbørfelt blir mer aktuelle i fremtiden. Med et våtere klima er det viktig at bygninger og infrastruktur er dimensjonert for å kunne håndtere flommer i fremtiden. I Norge i dag brukes det ...
(Master thesis / Masteroppgave, 2022)
Characterization of faults and fractures in basement rocks, implications for fault initiation and growth Restricted Access
(Master thesis / Masteroppgave, 2022)
Faults represent high-strain zones in which the fault core accommodates most of the intense deformation. The surrounding damage zone is linked to slip accumulation, and its architecture has important implications for the ...
(Master thesis / Masteroppgave, 2022)
En lineær modell, utviklet fra gruntvannsteori, evnet å kvalitativt gjenskape sirkulasjonen til en kompleks og høyoppløst havmodell om lukkede f /H-konturer ved høye breddegrader. De eneste variablene den lineære modellen ...
(Master thesis / Masteroppgave, 2022)
(Master thesis / Masteroppgave, 2022)
I denne oppgaven undersøkes kvaliteten på konvensjonelle infiltrasjonsmålemetoder og mulighetene for bruk av konvolusjonære nevrale nett til å bestemme mettet infiltrasjonsrate. En innledende analyse gjør det tydelig at ...
(Master thesis / Masteroppgave, 2022)
A warm phase has previously been observed in the early to middle Holocene geological record of the Northern hemisphere. Holocene invertebrate faunas in the Oslo fjord, Norway, are here studied in order to investigate their ...
(Master thesis / Masteroppgave, 2022)
With the continued need to reduce CO2 emissions in the atmosphere, the Carbon Capture and Storage (CCS) project is viewed as a critical part of the solution. The search for and identification of suitable CO2 storage sites ...
(Master thesis / Masteroppgave, 2022)
(Master thesis / Masteroppgave, 2022)
(Master thesis / Masteroppgave, 2022)
I alpine høyfjellsområder fører klimaendringene til at breene trekker seg tilbake, og permafrosten i fjellet varmes opp og tiner. Konsekvensene klimaet har for fjellsporten er imidlertid et lite studert tema. Dette er en ...
(Master thesis / Masteroppgave, 2022)
Flytende sensorplatformer "Driftere" kan brukes til å utføre målinger i de tøffe og utilgjengelige forholdene i smeltevannskanaler på bre. Drifterene kan levere et vell av data smeltevannskanaler, men metoder for å trekke ...
(Master thesis / Masteroppgave, 2022)
Prognosane for global oppvarming og den særskild forsterka oppvarminga i Arktis er ømfintlege for korleis klimamodellar representerer fasen til låge skyer. Dette utgjer ei uvisse for modellane. For at is skal dannast i ...
(Master thesis / Masteroppgave, 2022)
For undersøkelse av stabilitet i grunnen er dagens praksis å beregne sikkerhetsfaktor (F), som representerer forholdet mellom motvirkende og drivende krefter. Det er av flere årsaker forbundet usikkerheter til inngangsparameterne, ...
(Master thesis / Masteroppgave, 2022)
The number of discovered exoplanets reached five thousand, and it allows scientists to look not only at individual planets’ occurrence trends but start to analyse multi-planet systems in a statistical sense. In this thesis, ...
(Master thesis / Masteroppgave, 2022)
Climate change has impacted the global water cycle and has changed how streamflow behaves in Norway. Knowledge about high and low flows are important to be prepared for future changes, such as changes in water availability ...
(Master thesis / Masteroppgave, 2022)
As part of the global climate change the Arctic is warming rapidly. The surface energy budget is a central aspect of the Arctic system with sea ice growth and melt. However, the representation of the surface energy budget ...
(Master thesis / Masteroppgave, 2022)
The Greenland Ice Sheet (GrIS) has been losing mass since the 1990s as a direct consequence of rising temperatures. Greenland has been projected to continue to lose mass at an accelerating pace throughout the 21st century, ...
(Master thesis / Masteroppgave, 2022)
(Master thesis / Masteroppgave, 2022)
Azerbaijan hosts the largest concentration of mud volcanoes on Earth. This widespread phenomenon occurs due to the combination of unique geological peculiarities. Azerbaijan is characterized by high sedimentation rates ...
(Master thesis / Masteroppgave, 2022)
The identification and characterization of faults is an important process that provides necessary knowledge from the subsurface in geological and geophysical research. 3D seismic surveys are commonly utilized for the task ...
(Master thesis / Masteroppgave, 2022)
(Master thesis / Masteroppgave, 2022)
Ground temperatures in coarse, blocky deposits such as in mountain blockfields and rock glaciers have long been observed to be lower in comparison with other (sub)surface material. One of the reasons for this negative ...
(Master thesis / Masteroppgave, 2022)
Linear infrastructure networks, such as roads and railways, are of great social and economic importance in connecting the different regions of Norway. Landslides are cause of unexpected traffic flow disruptions of significant ...
(Master thesis / Masteroppgave, 2022)
The Arctic is warming much faster than the global average, a phenomenon referred to as Arctic Amplification (AA). Observations reveal that profound climate change in the Arctic is not a future phenomenon, but is already ...
(Master thesis / Masteroppgave, 2022)
The significance of sea ice on acoustic wave propagation in the Arctic Ocean is extensively investigated, yet not completely understood. The Arctic sea ice is characterized by ice roughness and ice ridges and to properly ...
Detecting land subsidence using multicriteria decision analysis and machine learning in Skøyen, Oslo
(Master thesis / Masteroppgave, 2022)
Denne masteroppgaven er en kvantitativ studie som skal kartlegge risikograden for subsidens på Skøyen i Ullern bydel som er et urbanisert område i Oslo. Subsidens er en form for naturfare som skaper gradvis innsynkning i ...
(Master thesis / Masteroppgave, 2022)
Assessment of depositional environments and variations in reservoir properties play an important role within CO2 storage sites, as even small-scale heterogeneities have a significant impact on the subsurface behavior of ...
(Master thesis / Masteroppgave, 2022)
Abstract De-risking of CO2-storage sites is crucial for assessing its viability. The Alpha Prospect is reliant on faults in the carbonate-rich Cromer Knoll Formation acting as a seal to prevent CO2 from leaking. However, ...
(Master thesis / Masteroppgave, 2022)
The Earth’s mantle transition zone (MTZ), located between approximately 410-660 km depth, can store an amount of water equivalent to 2-10 oceans of water, which is transported into the deep mantle by subducting oceanic ...
(Master thesis / Masteroppgave, 2022)
Structural de-risking of Carbon Capture and Storage (CCS) prospects are highly dependent on the effects of faults. Seismic scale faults will dictate how injected CO2 migrate within the subsurface. Depending on fault ...
(Master thesis / Masteroppgave, 2022)
This thesis explores parts of the Hoop area in the southwestern Barents Sea using the TGS16004 3D seismic volume provided by VBPR and TGS Nopec Geophysical Company ASA. The survey is captured using the P-cable surveying ...
(Master thesis / Masteroppgave, 2022)
Geochemical and micropalaeontological analyses conducted on two dated sediment cores from the Hvaler estuary (SE Norway) indicate a relationship between the darkening phenomenon of Skagerrak coastal waters and an increase ...
(Master thesis / Masteroppgave, 2022)
Denne oppgaven studerer konsekvensene som flom har på vei og jernbane i Ottaområdet. Oppgaven søker å gi økt kunnskap om slike konsekvenser, samt å forbedre hvordan man kan vurdere konsekvensene. Fokuset i denne oppgaven ...
(Master thesis / Masteroppgave, 2022)
Estimering av snøens vannekvivalente dybde har lenge vært et mål. Snøsmelting er en viktig kilde til ferskvann for mange regioner i kalde klimaer og utnyttes som en verdifull ressurs innen jordbruk, kraftproduksjon og som ...
(Master thesis / Masteroppgave, 2021)
(Master thesis / Masteroppgave, 2021)
Fluid flow through low permeability rocks is largely controlled by fractures. As a result, the remote detection and characterisation of fractures is critical for projects involving storage or extraction of fluids. A better ...
Monitoring and Modeling Groundwater Flow Near the Vemork and Såheim Hydraulic Power Plants, Norway Restricted Access
(Master thesis / Masteroppgave, 2021)
Most of unlined pressure tunnels are successfully operated in Norway without significant instability problems. Even though all unlined pressure tunnels follow the same established design criteria and principles, there are ...
(Master thesis / Masteroppgave, 2021)
A paleomagnetic survey of rocks from the Orkney Islands, Scotland.
(Master thesis / Masteroppgave, 2021)
Pseudotachylytes, also called “fossil earthquakes,” are the remains of solidified melt that formed along fault planes. If produced by brittle, seismic slip, they are important indicators of seismicity. If they originate ...
(Master thesis / Masteroppgave, 2021)
AbstractMt. Bromo is a strombolian-type volcano in East Java, Indonesia, that entered into one of its main eruption periods; between November 2015 and January 2016. The activity was registered by several seismic stations, ...
(Master thesis / Masteroppgave, 2021)
(Master thesis / Masteroppgave, 2021)
(Master thesis / Masteroppgave, 2021)
(Master thesis / Masteroppgave, 2021)
Drammensfjorden har vært utsatt for forurensning i lang tid, noe som har resultert i dårlige oksygenforhold på fjordbunnen. Partikler som sedimenteres i slike miljøer vil bevares i lang tid. De siste årene har mikroplast ...
(Master thesis / Masteroppgave, 2021)
Production of alumina from bauxite results in a large amount of bauxite residue. The accumulation of this hazardous material has unfavorable properties for plant growth and the closure of disposal areas is challenging. The ...
(Master thesis / Masteroppgave, 2021)
Microplastic has become a well known term the last decade, but how well known is the issue of microplastic pollution into the marine environment? An attempt on determining the microplastic accumulation in Drammensfjorden ...
(Master thesis / Masteroppgave, 2021)
Concerns about the impact of high levels of anthropogenic CO2 emissions in the atmosphere have led to the establishment of carbon emission limits of the 2015 Paris Agreement. Carbon capture and storage (CCS) has been ...
(Master thesis / Masteroppgave, 2021)
(Master thesis / Masteroppgave, 2021)
Earthquake prediction is a highly important goal in geoscience. In this study we present usage of machine learning to predict distance to failure in rocks, a problem adjacent to earthquake prediction. We use two machine ...
(Master thesis / Masteroppgave, 2021)
Propagation of igneous intrusions, like dikes and sill, is the dominant transport mechanism of magma through the Earth’s lithosphere. Dikes and sills propagate by fracturing or pushing crustal rocks which deform according ...