Now showing items 1-20 of 445

    • Langmuir Turbulence in the HYCOM Ocean Model 

      Malila, Mika Petteri (The University of Bergen, 2018-01-19)
      The impact of parameterising the turbulent mixing induced by surface wave-driven Langmuir turbulence is investigated for a basin-scale configuration of the hybrid-coordinate ocean circulation model HYCOM. Two-year, ...
      Master thesis
    • Energy Storage in the Distribution Grid 

      Kjerpeset, Sven-Arild (The University of Bergen, 2017-12-23)
      The implementation of distributed energy storage will play a vital role in the Smart Grid of the future, which is the merging of IT and the electrical power grid. With the increasing penetration of distributed energy ...
      Master thesis
    • Regional, seasonal, and predictable Arctic sea ice change 

      Onarheim, Ingrid Husøy (The University of Bergen, 2017-12-07)
      The loss of Arctic sea ice is one of the most prominent and best quantified indicators of ongoing global climate change. Satellite passive microwave observations since 1979 indicate significant negative sea ice extent ...
      Doctoral thesis
    • High resolution sea ice monitoring using space borne Synthetic Aperture Radar 

      Muckenhuber, Stefan (The University of Bergen, 2017-12-06)
      Sea ice represents a major factor in the climate system and updated knowl- edge about sea ice conditions is important for shipping and offshore industry, local communities and others. Due to its remote location and ...
      Doctoral thesis
    • The inorganic carbon cycle of the Red Sea 

      Ali, Elsheikh Bashir (The University of Bergen, 2017-11-14)
      The aim of this thesis has been to improve the general scientific understanding of the marine inorganic carbon cycle of the Red Sea. The region houses an exceptional range of ecosystems and it is considered the most important ...
      Doctoral thesis
    • The Northeast Greenland shelf as a potential habitat for the Northeast Arctic cod 

      Strand, Kjersti Opstad; Sundby, Svein; Albretsen, Jon; Vikebø, Frode Bendiksen (Frontiers, 2017-09-26)
      Observations (1978–1991) of distributions of pelagic juvenile Northeast Arctic cod (Gadus morhua L.) show that up to 1/3 of the year class are dispersed off the continental shelf and into the deep Norwegian Sea while on ...
      Journal article
    • A study on local weather variability in complex terrain using the Bergen School Mesonet 

      Schönbein, Daniel (The University of Bergen, 2017-08-15)
      This thesis investigates local- to mesoscale variability in winds, temperature and precipitation and is based on data delivered by a network of school weather stations in the greater surrounding of Bergen, Norway. The ...
      Master thesis
    • Mixing processes in the changing Arctic Ocean 

      Peterson, Algot Kristoffer (The University of Bergen, 2017-08-11)
      The Arctic has undergone tremendous changes the last decades, including a strong decline in sea ice extent and thickness. The rapid pace of Arctic changes relative to the global changes are known as Arctic amplification, ...
      Doctoral thesis
    • Open-source sea ice drift algorithm for Sentinel-1 SAR imagery using a combination of feature tracking and pattern matching 

      Muckenhuber, Stefan; Sandven, Stein (Copernicus Publications, 2017-08-07)
      An open-source sea ice drift algorithm for Sentinel-1 SAR imagery is introduced based on the combination of feature tracking and pattern matching. Feature tracking produces an initial drift estimate and limits the search ...
      Journal article
    • The Svalbard branch of the West Spitsbergen Current: Hydrography, transport and mixing 

      Kolås, Eivind (The University of Bergen, 2017-08-01)
      Data from a 10 days shipboard survey in August 2015, northwest of Svalbard, are used to investigate the transport, structure and mixing of Atlantic water (AW) along the Svalbard branch and Yermak branch of the West ...
      Master thesis
    • Strategic optimization of offshore wind farm installation 

      Backe, Stian (The University of Bergen, 2017-08-01)
      This work describes logistical planning of offshore wind farm installation through mathematical optimization. Two optimization models are developed to analyse cost-effective port and vessel strategies for offshore installation ...
      Master thesis
    • Sea ice thermohaline dynamics and biogeochemistry in the Arctic Ocean: Empirical and model results 

      Duarte, Pedro; Meyer, Amelie; Olsen, Lasse Mork; Kauko, Hanna Maria; Assmy, Philipp; Rösel, Anja; Itkin, Polona; Hudson, Stephen R.; Granskog, Mats A.; Gerland, Sebastian; Sundfjord, Arild; Steen, Harald; Hop, Haakon; Cohen, Lana; Peterson, Algot Kristoffer; Jeffery, Nicole; Elliott, Scott M.; Hunke, Elizabeth Clare; Turner, Adrian K. (American Geophysical Union, 2017-07)
      Large changes in the sea ice regime of the Arctic Ocean have occurred over the last decades justifying the development of models to forecast sea ice physics and biogeochemistry. The main goal of this study is to evaluate ...
      Journal article
    • Effects of sea-ice and biogeochemical processes and storms on under-ice water fCO2 during the winter-spring transition in the high Arctic Ocean: Implications for sea-air CO2 fluxes 

      Fransson, Agneta Ingrid; Chierici, Melissa; Skjelvan, Ingunn; Olsen, Are; Assmy, Philipp; Peterson, Algot Kristoffer; Spreen, Gunnar; Ward, Brian (American Geophysical Union, 2017-07)
      We performed measurements of carbon dioxide fugacity (fCO2) in the surface water under Arctic sea ice from January to June 2015 during the Norwegian young sea ICE (N-ICE2015) expedition. Over this period, the ship drifted ...
      Journal article
    • Climate controlled mechanisms of subpolar North Atlantic carbon uptake 

      Fröb, Friederike (The University of Bergen, 2017-06-27)
      The North Atlantic is a key region for global climate variability. Earlier studies have shown changes in the large-scale circulation, air-sea heat and freshwater fluxes and the carbon cycle in the North Atlantic ...
      Doctoral thesis
    • Modeling coastal circulation in Norway using a high-resolution 4D-Var ocean assimilation system 

      Sperrevik, Ann Kristin (The University of Bergen, 2017-06-23)
      The circulation along the Norwegian coast is characterized by many transient smallscale features such as eddies and meanders that are challenging to reproduce by means of numerical modeling. In this thesis I investigate ...
      Doctoral thesis
    • Tilpasning av elektronisk innsprøytningssystem, type Common Rail, for en én-sylindret dieseldrevet laboratoriemotor 

      Tingstad, Jarle (The University of Bergen, 2017-06-23)
      A modern diesel engine meets stringent demands in efficiency and emissions by adapting advanced technology. The technological advancements include the fuel injection system where advanced micro processing and fast actuators ...
      Master thesis
    • Batterilading i hybride fremdriftssystemer ved hjelp av tapsenergi fra forbrenningsmotoren 

      Nygård, Erlend (The University of Bergen, 2017-06-23)
      In a time when emission standards are getting stricter, the search for more environmentally friendly propulsion is more relevant than ever. Hybridization and electric propulsion has, thus, become more common in some ...
      Master thesis
    • Analyses of the potential role of hydrogen for Norway in the transition to a zero-emission society 

      Solheimslid, Tore (The University of Bergen, 2017-06-23)
      The objective of this thesis is to analyze the potential role of hydrogen for Norway in the transition to a zero-emission society. The main sector of focus is the transport sector. Here, socioeconomic analyses are carried ...
      Master thesis
    • Finite Element Analysis of the fatigue strength of a big-end bolt 

      Langeland, Jan Harald (The University of Bergen, 2017-06-23)
      This thesis investigates, with the use of finite element method, the stress formation in a big-end bolt during the power stroke in an IC piston engine. The method used is quasi-static analysis of the lower part of the ...
      Master thesis
    • Synthesis, Characterization and Improvement of a Dye Sensitized Solar Cell 

      Sandberg, Sondre (The University of Bergen, 2017-06-20)
      Because of its light weight, low cost, flexibility and easy production techniques, Dye Sensitized Solar Cells (DSSCs) have become one of the promising PV-technologies for the future. Even though the DSSCs have been researched ...
      Master thesis