Mastergradsoppgaver i teknologi - energi, klima og miljø: Recent submissions
Now showing items 81-100 of 139
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Mapping of solar energy potential on Tromsøya using solar analyst in ArcGIS
(Master thesis; Mastergradsoppgave, 2017-12-15)The price of solar energy is declining, and will continue to decline the coming years. This will make it easier for households and companies to utilize solar energy. Because of this, several solar map projects have been established in the recent years. The aim of this study is to create a solar map of Tromsøya, and thoroughly explain the process in doing so. The process chosen for making the map is ... -
Marine radar properties, analysis and applications
(Master thesis; Mastergradsoppgave, 2017-08-01)In this thesis marine radars are compared with synthetic aperture radars (SAR) and the possibility of cross-over applications are investigated. A first cross-over has been demonstrated by using the TS-CFAR on marine radar images. The TS-CFAR was originally developed for SAR and is a constant false alarm rate (CFAR) detection algorithm based on truncated statistics. Detecting weak targets embedded ... -
Case study of a large-scale solar, wind and hydro power hybrid system in Skibotndalen, Troms
(Master thesis; Mastergradsoppgave, 2017-06-06)The power company Troms Kraft is interested in the feasibility of a large-scale hybrid system in Skibotndalen in Troms. There are two existing hydro power stations in the area, and this thesis concerns the addition of an electric solar power plant of 20 MW and a wind power plant of 21 MW to these stations. As measured solar radiation is not available for one whole year at the location, solarradiation ... -
3-D seismic interpretation of the Samson Dome in the framework of the tectonostratigraphic and fluid migration development of the Western Barents Sea
(Master thesis; Mastergradsoppgave, 2017-06-21)Three-dimensional (3-D) seismic interpretations of data from the Samson Dome show direct connection between the local geological evolution of the area and the regional tectonic and stratigraphic development of the western Barents Sea. Rifting events, halokinetic movements, uplift and glacial processes influenced the area of the Samson Dome. The Samson Dome structure, located in the south-western ... -
The link between fluid flow and glacial erosion along the Ringvassøy- Loppa fault complex, Tromsøflaket, SW Barents Sea
(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 ... -
Case study of a large-scale solar and wind power hybrid system at Fakken Wind Farm, Troms
(Master thesis; Mastergradsoppgave, 2017-06-01)The objective of this thesis is to investigate the feasibility of a large scale hybrid system at Fakken, Troms. There is already an existing 54 MW wind farm at site. The wind farm has considerably higher power production during winter compared to summer, and the electricity grid is therefore not fully exploited during summer. Adding a solar panel utility to the site could be a solution to this issue. ... -
Changes in paleoceanography and methane release in relation to past climatic variability at Vestnesa Ridge, Svalbard
(Master thesis; Mastergradsoppgave, 2017-06-01)Sediment core HH16-549GC from Vestnesa Ridge in the Fram Strait, western Svalbard, has been investigated in order to reconstruct paleoceanographic and paleoclimatic conditions from 31,000 to 7500 cal years BP. Vestnesa Ridge is located in an area with extensive seepage of methane from the ocean floor. The core is retrieved from within a pockmark to reconstruct possible changes in seepage of methane ... -
Optimization of wind turbine location in urban environment
(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 ... -
Modelling the future of the arctic sea ice cover
(Master thesis; Mastergradsoppgave, 2017-06-01)Record lows in sea ice cover have recently sparked new interest in the small ice cap instability. The change in albedo when sea ice becomes open water introduces a nonlinearity called the ice-albedo feedback. Forcing a joint energy- balance and sea ice model can lead to unstable ice caps in certain parameter regimes. When the ice caps are unstable, a small perturbation will initiate a tipping point ... -
Detailed mapping of faults and fractures along Vestnesa ridge
(Master thesis; Mastergradsoppgave, 2017-05-31)This master thesis is focused on studying the Vestnesa Ridge located west of Svalbard. The Vestnesa Ridge is a 100 km long and about 3 km wide sediment drift located on the recently uplifted Svalbard margin. The crest of the ridge is represented with numerous pockmarks with different size, orientation and elongation. High resolution seismic data connected pockmarks with acoustic chimneys and faults ... -
A Brief Look at the Performance of PV in Norway
(Master thesis; Mastergradsoppgave, 2016-12-15)In the past years the Norwegian PV market has grown substantially. The importance of data on how PV systems perform in Norway is therefore also increasing. In this thesis several Norwegian PV systems are analyzed mainly in terms of annual specific yields. The systems are located in western and southeastern Norway and near horizontal, tilted and vertical modules are looked at. Results show pretty ... -
Time-lapse seismic analysis of focused fluid flow on the Vestnesa Ridge
(Master thesis; Mastergradsoppgave, 2016-06-01)The Vestnesa Ridge is a large sediment drift at water depths of 1200-1300 meter and is the northernmost known gas hydrate province that exists along the Arctic continental margin. Several pockmarks connected to vertical fluid flow features are present at the crest of the Vestnesa Ridge. The fluid flow pierce through the gas hydrate stability zone and interrupt the bottom simulating reflection (BSR) ... -
Depositional environments of the Upper Triassic Snadd Formation on the Loppa High, SW Barents Sea
(Master thesis; Mastergradsoppgave, 2016-06-01)This thesis has focused on the depositional environments of the Upper Triassic Snadd Formation. This formation covers the time-period Ladinian to early Norian with multiple marine regressions and transgressions, resulting in depositional environments ranging from offshore marine shelf to a coastal plain. A 3D seismic dataset and its correlating well have been studied and a refined seismic stratigraphic ... -
Repeatability of P-Cable 3D seismic data
(Master thesis; Mastergradsoppgave, 2016-05-31)The use of 4D time-lapse seismic data is a viable technology for monitoring fluid changes in the subsurface using conventional data, e.g. reservoir exploitation and CO2 storage. In this master thesis, the potential for using high-resolution P-Cable 3D seismic data for 4D time-lapse studies has been evaluated. The P-Cable 3D seismic system is a versatile, lightweight system which employs 24 short ... -
Seabed depressions in the Ingøydjupet Trough and their relation to buried canyons on the Loppa High, Barents Sea
(Master thesis; Mastergradsoppgave, 2016-06-13)Large seabed depressions in the Ingøydjupet Trough have previously been interpreted to be formed by sub-glacial melt-water. However, fluid migration and gas expulsion occur over large parts of the Barents Sea, which are frequently associated with seabed depressions. This thesis studies how the seabed depressions are related to sub-surface canyons on the southern part of the Loppa High, SW Barents ... -
Renewable Energy Resources: A Case Study on Asko Nord AS
(Master thesis; Mastergradsoppgave, 2016-06-01)Asko Nord AS i a business located in Ramfjorden just outside of Tromsø. In this theses, their potential to produce electricity from renewable resources at their location is investigated. Wind around the building is to find suitable locations for wind turbines, and to estimate the wind at the wind turbines. The calculations show that in a feasible estimate the wind is able to produce 439 kwh ... -
Investigation of seafloor craters and mounds in the central Barents Sea
(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 ... -
Shallow and Deep Seismic Amplitude Anomalies Indicate Times of Fluid Accumulation and Tectonic Activity in the Barents Sea
(Master thesis; Mastergradsoppgave, 2016-06-01)This master thesis studied the 3D-seismic dataset ST0825 located in the southwest Barents Sea. Aiming to map seismic anomalies and faults above and below the Upper Regional Unconformity (URU). The survey partly covers four different structural elements: Finnmark Platform, Tromsø Finnmark Fault Complex, Hammerfest Basin and Ringvassøy Loppa Fault Complex, south to north respectively. These areas ... -
Possible gas hydrates on the Bjarmeland Platform; seismic expression and stability modelling
(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 ... -
Seafloor craters and mounds in the central Barents Sea
(Master thesis; Mastergradsoppgave, 2016-05-31)Multiple giant craters and mounds have been identified in the area of the Upper Bjørnøyrenna in the central Barents Sea from the reflection seismic and echo sounder data. Analysis of seismic and echo sounder data revealed clear connection between these distinct seafloor features and seismic amplitude anomalies. Distribution pattern of the numerous water column anomalies registered in the area and ...