• Fluid leakage assessment of the overburden structure at the Sleipner CO2 storage site 

      Lydersen, Ida Bruun (Master thesis; Mastergradsoppgave, 2013-07-13)
      Carbon capture and storage (CCS) has been proposed as one of the alternatives for climate mitigation. CCS is a process where CO2 is trapped from large point sources, transported to a storage location and injected into storage reservoirs. One of the alternatives for CO2-storage is underground geological storage. Characterizing such an underground reservoir is crucial for safe storage, where leakage ...
    • Focused fluid flow through the gas-hydrate stability zone on the Vestnesa Ridge, offshore W-svalbard 

      Aas, Cecilie (Master thesis; Mastergradsoppgave, 2014-07-17)
      Abstract: Numerous unburied seafloor pockmarks are related to current methane-leakage at Vestnesa Ridge (~79° N), west of Svalbard. About 50 km long and 1-3 km wide, Vestnesa Ridge is a 1-2 km thick sediment drift to the north of the active Molloy transform – on the eastern spreading segment. With its crest at 1200-1300 m depth, the ridge is located on young (<19.6 Ma) oceanic crust. The entire ...
    • Forbedret tilstandsovervåkning av bærelager i Sjona kraftverk ved digitalisering 

      Fagerli, Kristin (Master thesis; Mastergradsoppgave, 2019-06-01)
      Økt konkurranse fra andre fornybare energikilder, økt energibehov og økt behov for reguleringsevne stiller stadig større krav til eksisterende og nye vannkraftverk. Vannkraftsektoren har de siste hundre årene ikke opplevd reell konkurranse fra andre teknologier her til lands, og har derfor ikke blitt tvunget til innovasjon og nytenking i samme grad som andre deler av kraftnæringen. De siste årene ...
    • Forecasting Wind Turbine Production Losses due to Icing 

      Andersen, Rikke Bjarnesen (Master thesis; Mastergradsoppgave, 2023-05-31)
      In order for wind energy producers to avoid the extra costs of inaccurate production estimates for the day-ahead energy market, precise forecasts of power production during the next day have to be made. For renewables such as wind energy, power production is particularly difficult to predict as it depends on the fluctuating wind speed. In addition, forecasting the power production in cold climates ...
    • Forest Health Monitoring by Detection of Biotic Agents in Satellite Images 

      Hansen, Stine (Master thesis; Mastergradsoppgave, 2018-06-01)
      Since 1999, the Pine Wood Nematode (PWN) has spread, infected and damaged growing areas of pine forest in Portugal. The pest is subject to strict quarantine measures, that require forest owners to register, fell and dispose of infected trees. As remote sensing from satellites provides repetitive and consistent data sets with high temporal resolution and large spatial coverage, a surveillance based ...
    • The Fugløy cold-water coral reefs on the south-western Barents Sea shelf: their morphology, distribution and environmental setting 

      Moumets, Heike (Master thesis; Mastergradsoppgave, 2008-12-15)
      The Fugløy area is located on the south-western Barents Sea shelf, in northern Norway. Multibeam echosounder bathymetry data, backscatter data and high-resolution seismic profiles were used to identify cold-water coral reefs. Together 12 cold-water coral reefs were mapped. Coral reefs have the highest density of up to 1.39 reefs per km² on top of ridges of morainic origin and they occur in areas ...
    • The Future of Solar Energy in Marine Applications 

      Dahlen, Sigurd (Master thesis; Mastergradsoppgave, 2018-06-01)
      The objective of this master's thesis is to investigate the current and future technical and economic feasibility of PV systems for marine applications. Two scenarios will be studied; a land-based PV power station to supply an in-land ferry in Norway and a PV system installed on a wind farm support vessel as a supplementary power source. The two scenarios are use cases that support the two research ...
    • A gas-hydrate related BSR on the W-Svalbard margin: distribution, geological control and formation mechanisms 

      Vevik, Kristine (Master thesis; Mastergradsoppgave, 2011-06-15)
      A widespread bottom-simulating reflection (BSR) defining the base of the gas hydrate stability zone (BGHSZ) exists on seismic data from the western Svalbard margin, including the Vestnesa Ridge, which is a mounded and elongated sediment drift NW of Svalbard to the north of the Molloy Transform. The BSR stretches from the continental slope to within few km of the mid-oceanic ridge system thereby ...
    • Geothermal energy and district heating in Ny-Ålesund, Svalbard 

      Iversen, Julianne (Master thesis; Mastergradsoppgave, 2013-12-13)
      This thesis presents the possibilities for using shallow geothermal energy for heating purposes in Ny-Ålesund. The current energy supply in Ny-Ålesund is a diesel generator, which does not comply with the Norwegian government and Ny-Ålesund Science Managers Committee’s common goal to maintain the natural environment in Ny-Ålesund. Ny-Ålesund has a potential for replacing the heat from the current ...
    • Grunn geotermisk energi i et hybrid energisystem 

      Kristoffersen, Eivind (Master thesis; Mastergradsoppgave, 2013-05-31)
      Denne mastergradsoppgaven ser på muligheten for å kombinere et horisontalt geotermisk system med et eksisterende biobrenselanlegg for dannelse av et hybrid energisystem ved Finnlandsmyran i Brøstadbotn. Det horisontale systemet kan tilknyttes fjernvarmekretsen til biobrenselanlegget ved bruk av varmepumpeteknologi. Dermed kan energien som er lagret i myren benyttes til å øke temperaturen på vannet ...
    • Ice-water Classification in the Barents Sea from Sentinel-1 EW SLC Images 

      Krokan, August (Master thesis; Mastergradsoppgave, 2019-05-31)
      The focus of this thesis is to do ice-water classification on Sentinel-1 EW SLC imagery using an unsupervised Mixture of Gaussian segmentation algorithm. The classes are automatically labelled as sea ice or water based on the slope of the observed brightness decay from near- to far-range, which is different for sea ice and water. The aim of the thesis is twofold. In the first part, the ability of ...
    • Iceberg Drift-Trajectory Modelling and Probability Distributions of the Predictions 

      Baadshaug, Ole (Master thesis; Mastergradsoppgave, 2018-06-29)
      Moving icebergs represent a major problem for shipping, as well as for oil and gas installations in ice infested waters. To be able to take actions against hazardous icebergs, it is necessary to develop models for prediction of iceberg drift trajectories. Many models have been developed in order to do so, using different approaches. These approaches can be divided into two main categories, dynamic ...
    • An integrated seismic and well data study of shallow fluid accumulations in Snøhvit, SW Barents Sea 

      Arntzen, Andreas (Master thesis; Mastergradsoppgave, 2018-07-12)
      In the vicinity of the Snøhvit hydrocarbon reservoir in the Hammerfest Basin a number of fluid flow phenomena occur, e.g. free gas accumulations, pockmarks and potential indicators of gas hydrates.The presence of shallow gas may cause major blowouts during drilling. To reduce the risk, it is important to locate the shallow gas and gas hydrates. CO2 has been injected into the Snøhvit reservoir since ...
    • Investigating the viability of lithium-ion battery - fuel cell hybrid systems - A case study for Greenland and Qatar 

      Witt, Hannes (Master thesis; Mastergradsoppgave, 2020-06-22)
      Renewable means of energy production have recently become cost competitive with fossil fuels. However, before they can be completely phased out, the issue of storing renewable energy must be addressed. Two energy storage technologies that have gotten a lot of attention over the past years are lithium ion batteries and hydrogen energy storage. Each of these technologies have their advantages, ...
    • Investigation of Photovoltaic Energy Yield on Tromsøya by Mapping Solar Potential in ArcGIS 

      Eikeland, Odin Foldvik (Master thesis; Mastergradsoppgave, 2019-06-13)
      To contribute to the reduction of greenhouse gas emissions, energy production from renewable energy resources should be markedly increased to supply the rising global energy demand (Marchant, 2018). This thesis investigates the solar energy potential in Tromsø which is used as a basis for estimating total energy yield from photovoltaic (PV) systems on rooftops. The energy yield is compared against ...
    • Investigation of seafloor craters and mounds in the central Barents Sea 

      Sørbø, Magnus (Master thesis; Mastergradsoppgave, 2016-06-01)
      Recently acquired datasets of multibeam, echosounder and seismic data reveal the geomorphology and distribution of seafloor craters and mounds in central Barents Sea. The study found 288 craters, 227 pingos and 119 gas flares in the area, each with its own distinctive appearance. The majority of pingos lie inside or close to craters. This indicate a connection between the two features. Inspection ...
    • Isdynamikk i tre mindre fjord-trausystemer langs Finnmarkskysten 

      Skjeldnes, Marie Elise Planting (Master thesis; Mastergradsoppgave, 2019-07-01)
      Multistråle batymetriske data og seismiske profiler fra den vestlige kysten av Finnmark er analysert med formålet om å rekonstruere dynamikken til det Fennoskandiske Isdekket gjennom siste glasiale maksimum, og påfølgende deglasiasjon. Fokuset har vært på tre prograderende kiler i forlengelsen av de glasiale trauene Rolvsøy-, Hjelmsøy- og Måsøytrauet. En seismisk stratigrafi er definert med tre ...
    • Klimanøytral miljøpark – en vurdering av kostnader og nytteverdi for klimagassreduserende tiltak 

      Strand, Petter Hofstad (Master thesis; Mastergradsoppgave, 2020-12-14)
      Remiks AS har gjennom flere år gjort en kartlegging av klimagassutslipp knyttet til egen virksomhet. På bakgrunn av dette er det iverksatt flere tiltak på aktuelle områder som har blitt identifisert. Det er i midlertidig ikke sikkert at investeringene som er gjort er de mest effektive tiltakene om man vurderer kostnadene mot klimanytten. Denne studien vil vurdere tiltakene solenergi, biodrivstoff, ...
    • Late Holocene climate variability in the North Atlantic realm from paleo data and climate simulations 

      Nilsen, Tine (Master thesis; Mastergradsoppgave, 2013-05-31)
      This thesis presents the results of the comparative analysis of surface temperature series from paleoproxy reconstructions and climate simu- lations. The proxy to model comparison is done using the results from 12 simulations produced by 5 different climate models covering the pe- riod of the late Holocene. Agreement between the model results and the paleoproxy reonstrcuctions is analyzed both on ...
    • The link between fluid flow and glacial erosion along the Ringvassøy- Loppa fault complex, Tromsøflaket, SW Barents Sea 

      Berg, June (Master thesis; Mastergradsoppgave, 2017-06-06)
      This master thesis has focused its efforts to investigate the link between glacial erosion and focused fluid flow in the SW Barents Sea, on the shallow bank area of Tromsøflaket where the Ringvassøy-Loppa Fault Complex borders the Tromsø basin in west, and the Loppa High in east. Here, large, elongated depressions are identified on the buried Upper Regional Unconformity (URU) and may resemble tunnel ...