Fakultet for naturvitenskap og teknologi: Nye registreringer
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Samvirke innenfor kraftforsyningsberedskapen i Nord-Norge
(Master thesis; Mastergradsoppgave, 2024-05-31)Kraftbransjen i Norge er sammensatt av både små og store virksomheter som sammen skal bidra til en sikker og stabil leveranse av elektrisk energi. For å sikre leveransen er kraftbransjen avhengig av godt samvirke med andre aktører både internt og eksternt. Samvirke anses som et viktig aspekt i Norges samfunnssikkerhet- og beredskapsarbeid. Dette studiet undersøker hvordan samvirke praktiseres i ... -
Organisatorisk læring ved snøskredhendelser En casestudie av kommuner i Troms
(Master thesis; Mastergradsoppgave, 2024-05-31)Vi lever i et samfunn som er i konstant endring, og klimaendringene er vår tids aller største utfordring. Disse klimaendringene vil kunne føre til mange nye utfordringer knyttet til ekstremvær, samtidig som at eksisterende utfordringer forsterkes. Vi ser en økende trend i både omkomne og skredtatte etter snøskredhendelser både nasjonalt, men spesielt regionen Troms. Det har de siste årene også ... -
Navigating the Future of Energy in Norway: Regulatory, Procedural, and Transparency Challenges in Nuclear Power Implementation
(Master thesis; Mastergradsoppgave, 2024-05-31)Norway is in the crossroads of an energy transition, while it is in need for extensive power production to not reach a power deficit in the coming years. War in Europe, decommissioning the petroleum sector, and investing in green energy sources, comes with a price. Energy projects are conflict-ridden, and many local communities experience decreased acceptance for new technologies. This study looks ... -
Læring etter snøskredhendelser i redningstjenesten
(Master thesis; Mastergradsoppgave, 2024-05-30)Denne studien undersøker hvordan frivillige redningsorganisasjoner i Norge lærer av snøskredhendelser for å forbedre sin fremtidige beredskap. Hovedfokuset er på de læringsarenaene som benyttes, typen læring som foregår, og om identifiserte forbedringspunkter blir implementert. Studien baserer seg på kvalitative intervjuer med nøkkelpersoner i redningsorganisasjoner som Røde Kors, Norsk Folkehjelp, ... -
Erfaringer i møte med risiko hos sjarkfiskere
(Master thesis; Mastergradsoppgave, 2024-05-30)Den norske sjarkflåten er svært utsatt for skade og dødsfall, hvorav menneskelige feil er utpekt som en av de største bakenforliggende årsakene til at ulykker oppstår. Denne kvalitative case studien undersøker hvordan erfaringer gjennom formell kursing og uformell opplæring spiller inn på risikopersepsjonen til fiskere. Videre ønsker studien å belyse hvordan egne og andres erfaringer bidrar til å ... -
Langvarig bortfall av strømforsyning i bygd og by
(Master thesis; Mastergradsoppgave, 2024-05-30)Det er vanskelig å se for seg hvordan norske innbyggere skulle klart seg uten tilgang på strøm. Det vil bli utfordrende å gjennomføre arbeidet sitt, handle på butikken, oppbevare og tilberede mat, og ha god hygiene uten å benytte seg av strøm. Krig i Europa og økende forekomst av ekstremvær kan føre til at en også i Norge vil kunne oppleve å miste strømmen oftere. Denne masteroppgaven ønsker å ... -
Exploring methane detection with Sentinel-2 data: capabilities for monitoring landfill emissions
(Master thesis; Mastergradsoppgave, 2024-06-01)Methane is an extremely potent greenhouse gas, as it is about 80 times more effective at trapping heat than carbon dioxide. To mitigate global warming and the related consequences, reducing our emissions of methane is crucial. Therefore, being able to detect unknown releases and monitor the effects of emission mitigation efforts is essential. A few satellites with methane monitoring as one of their ... -
Automatic Building Structure Extraction from Aerial Photographs using Transformers
(Mastergradsoppgave; Master thesis, 2024-06-01)This thesis explores a method for automatically extracting three-dimensional, geolocated building roof structure representations from non-orthorectified aerial photos, with a view to automate time intensive tasks that are currently handled manually. A two stage framework for 3D roof structure inference from aerial photos is proposed. A transformer-based deep learning framework is used to extract ... -
"Må vinklene være helt rette?"
(Mastergradsoppgave; Master thesis, 2024-05-31)Denne kvalitative studien tar for seg hindringer elever møter på i utforskende oppgaver. Hensikten med studien har vært å finne ut hvilke hindringer elever møter på og i hvilken fase av utforskningsarbeidet hindringene oppstår. For å undersøke dette har jeg prøvd ut et undervisningsopplegg for elever som tar matematikk 1T. Undervisningsopplegget gikk ut på at elevene selv skulle komme fram ... -
Antarctic ice shelf response to ocean tides and atmospheric pressure variations using satellite interferometry
(Master thesis; Mastergradsoppgave, 2024-06-02)Ice shelves, the floating extensions of the Antarctic ice sheet, are supporting the upstream ice and regulates the outflow into the ocean. They are a key component in future predictions of sea level rise, as their direct contact with both the ocean and the atmosphere makes them subject to changing climatic conditions. This thesis aims to investigate how Fimbulisen, a large ice shelf in East ... -
Uncertainty Guided Polygon Generation for Building Detection
(Mastergradsoppgave; Master thesis, 2024-06-01)Enhanced accuracy of building detection algorithms has the potential to benefit a wide array of applications, including urban planning, environmental monitoring, and disaster response efforts. However, building extraction algorithms struggle with robustness due to among others, occlusions from vegetation and shadows of nearby tall buildings, complex building shapes, and a large distributional shift ... -
Implementing renewable energy technologies in buildings: impacts of local-specific conditions, intermittency and volatile power markets
(Master thesis; Mastergradsoppgave, 2024-05-31)Increased implementations of small-scale renewable energy technologies in buildings can potentially save costs and reduce greenhouse gas emissions. The aim of this thesis is to analyse the total costs and climatic impact of implementations in major cities in Norway. Basing the analysis in data of hourly resolutions captures effects of how intermittency and volatility in the power market ... -
Seasonal Thermal Energy Storage Using Sand Batteries: Feasibility and Economic Analysis in Northern Norway
(Master thesis; Mastergradsoppgave, 2024-05-31)The global shift from fossil fuels to renewable energy sources necessitates effective energy storage solutions to address the intermittent nature of renewable power. This thesis investigates the feasibility and economic viability of using sand batteries for seasonal thermal energy storage in Northern Norway. Sand batteries leverage the high heat capacity of sand to store excess thermal energy during ... -
Assessing ice rate and ice load at Davvi wind farm using WRF model with wind turbine scheme
(Master thesis; Mastergradsoppgave, 2024-05-31)Wind farms located in cold climates are exposed to temperatures under the design limit and icing conditions, where the main challenges are production losses and mechanical failures. The goal of this thesis is to investigate the impact related to icing on the location of Davvi wind farm using Weather Research and Forecasting (WRF) model. The thesis have investigated the icing intensity and production ... -
Near-surface characterization using shear-wave resonances: A case study from offshore Svalbard, Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-06-14)Shear-wave (S-wave) resonances are typically observed when the surficial marine sediments over a rock substrate have relatively low S-wave velocities. We observe these phenomena using ocean-bottom fiber-optic distributed acoustic sensing (DAS) in two subsea fiber-optic telecommunication cables in Svalbard, Norway. Strong seismic energy from sufficiently large earthquakes is required to trigger and ... -
Investigating limitations of RAMMS:Debrisflow as a slushflow simulation tool: Using numerical modelling as a tool to predict slushflow runouts
(Master thesis; Mastergradsoppgave, 2024-05-30)Slushflows are defined as rapid mass movement and occur when water-saturated snow (slush), rapidly moves downslope as a flowlike process. The high-water content of the flow results in high density and mobility flow that poses a significant danger to everything in its path. To predict how slushflows navigates the terrain, numerical modelling is a valuable tool. The output of the simulations would ... -
Stellar CCD Photometry in the Auroral Zone
(Master thesis; Mastergradsoppgave, 2000-12)Observing pulsating stars in the auroral zone, seemed for many years to be an impossible task. Due to the aurora, the sky is bright and rapidly changing. Precise photometry could only be performed on stars down to 7 th. magnitude.<p> <p>A new instrument for continuous photometry, with the use of CCD technology, and windowed readout, is developed by the Astrophysics group at the University of ... -
Geomorphological study of unstable rock slope deformation on Stáluvárri, Kåfjorden, Troms
(Mastergradsoppgave; Master thesis, 2024-05-15)Unstable rock slope failures are catastrophic hazards with a long history in Norway. A large portion of these have been detected within Troms County, with a high percentage of them the Lyngenfjorden fault zone. Stáluvárri, a mountain in Kåfjord commune, is such a slope with detected bodies undergoing slow displacement rates. Bedrock compositions on the slope has abundant mica schists, with a thrust ... -
The origin and evolution of LCT pegmatites in Helgeland, northern Norway: stable isotope evidence from tourmaline (δ11B) and garnet (δ18O, ∆’17O)
(Master thesis; Mastergradsoppgave, 2024-06-07)The processes leading to formation of rare-element enriched granitic pegmatites are controversially debated amongst petrologists and economic geologists. Two contrasting genetic models discuss the necessity of a parental granitic pluton as the magma source versus an anatectic origin via partial melting of metasedimentary rocks. Geochemical tools such as the analysis of stable isotopic compositions ... -
An Investigation of Turbulence and Intermittency in the High-Latitude Ionosphere: A Multi Case Study
(Master thesis; Mastergradsoppgave, 2024-06-03)High-latitude electron density irregularities can affect technology such as the Global Navigation Satellite Services (GNSS) by degrading radio signals. These irregularities are not fully understood. In this work we investigate turbulence and intermittency in varying regions of the high- latitude ionosphere using the structure function, empirical flatness and probability density function. Our ...