• The nature of the gas-hydrate/free gas transition zone at the base of the hydrate-stability zone from high-resolution 3D seismic data 

      Bjørnøy, Kirsti (Master thesis; Mastergradsoppgave, 2015-01-26)
      Geophysical evidence of a prominent BSR at Vestnesa Ridge and north to the northern flank of the Storegga slide escarpment infer that gas hydrates are ubiquitous within these regions. A wide range of fluid flow structures have previously been discovered from these regions, as well as gas seepage activity from pockmarks on the eastern segment of Vestnesa Ridge. This paper focuses on high-resolution ...
    • Network Analysis and Boosting the Distribution to Local Consumers at Northern Senja, Norway with Potential Renewable Generation using Power Flow Control 

      Rochmann, Karl Henrik (Master thesis; Mastergradsoppgave, 2022-06-08)
      Renewable generation and power flow control are increasing its importance for power systems. The promising development in the technology increases the efficiency for transferring energy. With increasing consumption, remote locations benefit from close laying power production due to reduced transfer losses. In these recent years, energy storage system and local renewable energy production injected ...
    • "Numerical modeling of microwave interactions with sea ice" 

      Kampffmeyer, Michael Christian (Master thesis; Mastergradsoppgave, 2014-06-02)
      Remote sensing is a key instrument for monitoring sea ice surface properties over large areas. Synthetic Aperture Radar (SAR) as well as Real Aperture Radar (RAR) are two types of radars that are extensively used in this context and measure the backscatter of the surface that they illuminate. Backscattering of waves from rough surfaces is complicated and depends, among other things, on the roughness ...
    • Ocean modeling in Northern Norway: A tidal verification study 

      Djuve, Hans Kristian (Master thesis; Mastergradsoppgave, 2014-06-02)
      The coast of Northern Norway has for the first time been modeled using an unstructured grid. The modeling is done using two separate grids of different resolution, and the model data is compared to measurements done along the coast to verify its performance for both the fine and coarse grid. The model is a 2-D depth integrated model of tidal circulation with bottom friction. The data have been ...
    • On Atmospheric Energy Transport by Waves 

      Heiskanen, Tuomas Ilkka Henrikki (Master thesis; Mastergradsoppgave, 2018-12-14)
      Recently a new method, based on a Fourier decomposition in the zonal direction, for studying the atmospheric energy transport contribution by planetary and cyclone scale waves has been proposed. Recent studies based on this show that planetary waves contribute more than cyclone scale waves to the atmospheric energy transport into the Arctic. The planetary waves contribute to the Arctic amplification ...
    • On the Feasibility of Using Twitter Data to Assess the Global Circulation Patterns of Influenza Viruses 

      Holmstrand, Inga Setså (Master thesis; Mastergradsoppgave, 2018-06-01)
      Having the flu is something that everyone is familiar with, and the influenza season hits every year. The intensity and timing vary from year to year driven by climatic conditions and antigenic evolution, through mechanisms that are only partially understood. Most research agree that the virus originates in East and South-East (E-SE) Asia and spread throughout the world through human movement. In ...
    • On the relationship between global mean temperature in historical runs of Earth system models and equilibrium climate sensitivity 

      Haug, Sofie Flyvholm (Master thesis; Mastergradsoppgave, 2019-05-31)
      Equilibrium climate sensitivity (ECS) measures the long-term global surface temperature response due to a doubling of CO2 in the atmosphere. Estimates of ECS is not well constrained, 1.5-4.5C [Pachauri et al., 2014], and there is a wide spread between different Earth system models (ESMs). Recently it has been suggested that ECS can be constrained using an observed relationship between the statistical ...
    • Optical Remote Sensing of Oil Spills by using Machine Learning Methods in the Persian Gulf: A Multi-Class Approach 

      Evenseth, Martin H. (Master thesis; Mastergradsoppgave, 2023-06-15)
      Marine oil spills are harmful for the environment and costly for society. Coastal areas are particularly vulnerable since they provide habitats for organisms, animals and marine ecosystems. This thesis studied machine learning methods to classify thick oil in a multi-class case, using remotely sensed multi-spectral data in the Persian Gulf. The study area covers a large area between United Arab ...
    • Optimal sizing and placement of Electrical Vehicle charging stations to serve Battery Electric Trucks 

      Isaksen, Ole-André (Master thesis; Mastergradsoppgave, 2023-06-01)
      For Norway to reach the emission limits in the Paris Agreement, a substantial amount of CO2 must be reduced. Road traffic alone accounts for a high percentage of the total emissions during 2021. This thesis will focus on electrifying the transport sector and analyzing charging infrastructure for heavy-duty electric vehicles. New charging infrastructure for heavy-duty Electric Vehicles (EVs) provides ...
    • Optimization of wind turbine location in urban environment 

      Hågbo, Trond-Ola (Master thesis; Mastergradsoppgave, 2017-06-01)
      Making energy clean, reliable and readily available is essential for fighting climate change and to supply an ever-rising global power demand. The aim of the study is to identify optimal locations for a wind turbine to be joined to a small-scale hybrid system at the main campus of UiT – The Arctic University of Norway. To identify feasible areas for maximizing electric power production, techniques ...
    • Origin and accumulation mechanism of shallow gas accumulations in the SW Barents Sea 

      Kjerkreit, Kristian (Master thesis; Mastergradsoppgave, 2014-06-02)
      Events associated with shallow gas accumulations are reported all over the Norwegian continental shelf. These accumulations are potentially dangerous geo-hazards related to drilling activity, but they can also be of economic interest if the accumulated volumes are large. Petroleum in the Barents Sea has been influenced by the late periods of uplift and erosion creating a complex province. The exact ...
    • Performance and Future Potential of Solar Photovoltaics in Arctic Settlements 

      Mathiesen, Vemund Nygaard (Master thesis; Mastergradsoppgave, 2020-12-15)
      Data from a solar photovoltaic (PV) installation on Svalbard Airport Longyear has been analyzed to investigate performance of solar photovoltaics in the Arctic. Results show that the average capacity factor at the facility is 5.6 % after its first two full years of production. While the production in the winter is zero, monthly capacity factors are observed to be as high as 16 % in the summer. On ...
    • Polar low trajectories in the Nordic Seas 1999-2013: a statistical analysis using kernel density methods 

      Kvammen, Ylva Kirsten (Master thesis; Mastergradsoppgave, 2014-06-02)
      Polar lows are mesoscale cyclones of high intensity, frequently occurring in the Nordic Seas during the winter season. They usually form in baroclinic zones, for instance in regions near ice edges, and they are often maintained by organized convection. Polar lows are characterized by severe weather conditions like heavy snowfall, strong winds, icing and large sea waves. In addition to forecasting ...
    • Possible gas hydrates on the Bjarmeland Platform; seismic expression and stability modelling 

      Løvaas, John Sverre (Master thesis; Mastergradsoppgave, 2016-05-24)
      Seismic evidence of shallow gas anomalies are prominent at Ververis Dome structure and Hoop Fault Complex in Bjarmeland Platform. Ubiquitous high amplitude anomalies at the same depth as these shallow gas anomalies infer a possible relation to gas hydrates. A wide range of fluid flow structures within the two study areas have previously been discovered and reported, and may possibly feed the base ...
    • Power potential of Rystraumen, Norway 

      Solbakken, Kine (Master thesis; Mastergradsoppgave, 2014-03-14)
      The maximum power potential of the tidal current Rystraumen close to Troms , Norway, is assessed both theoretically and from a depth-integrated numerical model (FVCOM). For the theoretical estimate of the maximum power potential, the topography is simplified to the situation in which the channel connects a large basin, unaffected by the energy extraction, to a closed bay. A set of governing equations ...
    • Probabilistic Load Forecasting with Deep Conformalized Quantile Regression 

      Jensen, Vilde (Master thesis; Mastergradsoppgave, 2021-06-01)
      The establishment of smart grids and the introduction of distributed generation posed new challenges in energy analytics that can be tackled with machine learning algorithms. The latter, are able to handle a combination of weather and consumption data, grid measurements, and their historical records to compute inference and make predictions. An accurate energy load forecasting is essential to assure ...
    • Probabilistic Wind Power Forecasting with Deep Neural Sequence Models 

      Svenøe, Sofie (Master thesis; Mastergradsoppgave, 2023-05-27)
      As the world strives to fulfill the goal of zero-emission established during the Paris agreement, an increasing amount of wind power is integrated into the liberalized electricity markets. With this escalation comes the need for wind power forecasting (WPF) due to the intermittent nature of wind, and WPF is therefore becoming an important field of study to successfully incorporate wind power to the ...
    • Profitability of green hydrogen production and feasibility of waste heat integration to DHS in the Ísafjörður’s energy system: A techno-economic analysis 

      Víðisdóttir, Elena Dís (Master thesis; Mastergradsoppgave, 2022-05-31)
      Hydrogen production by electrolysis using renewable energy sources is essential for hydrogen to be able to contribute to the green energy transition. Producing the hydrogen on the site of use minimizes the transportation costs and footprint, and utilization of all by-products increases the electric efficiency of hydrogen production. During hydrogen production by electrolysis the chief part of energy ...
    • Pumped Hydropower Conversion and Renewable Hybrid Power Plants at Senja 

      Løvvold, Ina (Master thesis; Mastergradsoppgave, 2020-09-30)
      With an increasing demand for power on a global scale, and an increasing interest in renewable energy sources, both solar and wind power is growing fast. Their efficiency is increasing while the prices are decreasing, and the forecasts for these technologies shows a promising future. Along with these intermittent energy sources, storage solutions are also continuously developing, whereas pumped ...
    • QRA techniques on dynamic positioning systems during drilling operations in the Arctic: With emphasis on the dynamic positioning operator 

      Pedersen, Runar Nikolai (Master thesis; Mastergradsoppgave, 2015-06-01)
      With the Norwegian government moving the ice edge farther north than ever before, opening for new areas for petroleum exploration, it will need research on how these areas can affect oil and gas operations. A sensitive environment along with the harsh Arctic climate and remote distances means that severe accidents, like blowouts, will have serious impacts and make cleanup and rescue actions to ...