A synthetic aperture radar (SAR) achieves a high azimuth resolution by illuminating targets with multiple pulses and using the Doppler history to synthesize a large antenna. When combining the pulses, it is normally assumed that the targets are stationary, and that their reflectivity is independent of time. The topic of this thesis is the processing of SAR images where the the targets have a ...

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 ...

This thesis focuses on the use of multi-polarization synthetic aperture radar (SAR) for characterization of marine oil spills. In particular, the potential of detecting internal zones within oil slicks in SAR scenes are investigated by a direct within-slick segmentation scheme, along with a sensitivity study of SAR measurements to the evolving nature of oil slicks. A simple, k-means clustering ...

This study was carried out using three high resolution 3D P-cable seismic datasets to explore shallow gas distribution and possible fluid migration pathways in the Snøhvit field and Ringvassøy-Loppa Fault Complex. The Snøhvit field situated in the center of the Hammerfest Basin is oil and gas field discovered in 1994. Ringvassøy-Loppa Fault complex marks the border between the Hammerfest and Tromsø ...

Rising energy demands and a growing focus on sustainable development have made electricity production from wind energy an attractive alternative to fossil fuels. However the natural variability of wind makes it challenging to implement wind energy into the electrical grid. Accurate and reliable wind power predictions are seen as a key element for an increased penetration of wind energy. This ...

The addition of variable renewable energy sources into the electrical energy systems of the world has been increasing in recent years. This form of distributed energy production with high production volatility can introduce massive challenges in operating a lower voltage distribution network. One of these affected networks is on the island of Senja in northern Norway, with an eldering radial electrical ...

I denne masteroppgaven har jeg undersøkt hvilket solenergisystem som vil være det mest hensiktsmessige for å minimere belastningen på det lokale strømnettet på Røros. Dette ble gjort ved å se på dimensjonering av solenergianlegg og batteripakker i et mikronett. Dette gjorde jeg ved å bruke solstrålingsdatabaser, og basert på dagens solcelle- og batteriteknologi, beregne hvor mye strøm som kan ...

In this thesis time series forecasting is reviewed and performed on electrical load time series. The main dataset that is used consists of 4074 load time series, each collected from a secondary substation. The time series in this set cover hourly observations spanning more than 2 years, and these time series all have different patterns, some being more similar to each other. We explore how we ...

Mining is the process or industry of extracting valuable minerals or other geological materials from the earth. The nature of mining creates a potential negative impact on the environment both during the mining operations and several years after the mine is closed. Over the years regulations designed to moderate the negative effects are adopted, and environmental issues and challenges have ...

Classic target decomposition methods use scattering space in their approaches. However, the goal for this project is to investigate whether a different approach to retrieve accurate and reliable estimates on the earth composition is possible when using the feature space with covariance matrix-based features. The approach consists of four steps. Generating multidimensional feature space data from ...