Recent Submissions

  • 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
  • Investigations on the External Forcings acting on the Convective Boundary Layer during the BLLAST Campaign by the CLASS Model 

    Seidl, Andrew Walter (The University of Bergen, 2017-06-20)
    Using both observed and modelled datasets from the 2011 Boundary Layer Late Afternoon and Sunset Turbulence (BLLAST) campaign, the influence of large-scale forcings and surface heterogeneity is investigated for ten out of ...
    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
  • Frequency Regulation of Synchronous Generator 

    Sørås, Stian Jensen (The University of Bergen, 2017-06-20)
    The objective of this thesis is to create a Load Frequency Control (LFC) to regulate the active power output and frequency of a synchronous generator, and to conduct experiments to verify frequency stability. The electrical ...
    Master thesis
  • Exploring the potential of the RPA system SUMO for multipurpose boundary-layer missions during the BLLAST campaign 

    Reuder, Joachim; Båserud, Line; Jonassen, Marius Opsanger; Kral, Stephan T.; Müller, Martin (Copernicus Publications, 2016-06-24)
    In June and July 2011 the RPAS (Remotely Piloted Aircraft System) SUMO (Small Unmanned Meteorological Observer) performed a total number of 299 scientific flights during the BLLAST (Boundary Layer Late Afternoon and Sunset ...
    Journal article
  • Wind coherence measurement by a single pulsed Doppler wind lidar 

    Cheynet, Etienne Francois Cyprien; Jakobsen, Jasna Bogunovic; Svardal, Benny; Reuder, Joachim; Kumer, Valerie-Marie (Elsevier, 2016-09)
    A single pulsed Doppler wind lidar, deployed at the FINO1 platform in the North Sea, has been used to monitor the lateral and vertical coherence of the along-wind component. To maximize the sampling frequency of the ...
    Journal article
  • Decadal prediction of Sahel rainfall: where does the skill (or lack thereof) come from? 

    Mohino, Elsa; Keenlyside, Noel; Pohlmann, Holger (Springer, 2016-12)
    Previous works suggest decadal predictions of Sahel rainfall could be skillful. However, the sources of such skill are still under debate. In addition, previous results are based on short validation periods (i.e. less than ...
    Journal article
  • Automated Measurements of Whitecaps on the Ocean Surface from a Buoy-Mounted Camera 

    Paskyabi, Mostafa Bakhoday; Reuder, Joachim; Flügge, Martin (Elsevier, 2016-12)
    We quantify the percentage of sea surface covered by whitecaps from images taken by a non-stationary camera mounted on a moored buoy using an Adaptive Thresholding Segmentation (ATS) method and an Iterative Between Class ...
    Journal article
  • Influence of synoptic weather patterns on solar irradiance variability in northern Europe 

    Parding, Kajsa; Liepert, Beate G.; Hinkelman, Laura M.; Ackerman, Thomas P.; Dagestad, Knut-Frode; Olseth, Jan Asle (American Meteorological Society, 2016-05)
    Observations have revealed strong variability of shortwave (SW) irradiance at Earth’s surface on decadal time scales, referred to as global dimming and brightening. Previous studies have attributed the dimming and brightening ...
    Journal article
  • Variability in deep water mass properties and mixing in the Norwegian Sea 

    Onarheim, Tore (The University of Bergen, 2016-12-19)
    Decadal variations of the Norwegian Sea Deep Water are presented for the 1990s and 2000s. While salinity values have only slightly increased for the Norwegian Basin, there is a noticeable increase in potential ...
    Master thesis
  • An Integrated Approach for Local Air Quality Assessment under Present and Future Climate Scenarios 

    Wolf-Grosse, Tobias (The University of Bergen, 2016-12-16)
    Local circulation features in complex terrain are often not resolved in today’s mesoscale numerical weather prediction and research models. For urban areas embedded in complex terrain a prediction of the local circulation ...
    Doctoral thesis
  • Comparison of direct covariance flux measurements from an offshore tower and a buoy 

    Flügge, Martin; Bakhoday Paskyabi, Mostafa; Reuder, Joachim; Edson, James B.; Plueddemann, Albert J. (American Meteorological Society, 2016-05)
    Direct covariance flux (DCF) measurements taken from floating platforms are contaminated by wave-induced platform motions that need to be removed before computation of the turbulent fluxes. Several correction algorithms ...
    Journal article
  • Dynamically combining climate models to "supermodel" the tropical Pacific 

    Shen, Mao-Lin; Keenlyside, Noel; Selten, Frank; Wiegerinck, Wim; Duane, Gregory (Wiley, 2016-01)
    We construct an interactive ensemble of two different climate models to improve simulation of key aspects of tropical Pacific climate. Our so-called supermodel is based on two atmospheric general circulation models (AGCMs) ...
    Journal article
  • A study on the Atmospheric Boundary Layer in the High Arctic during winter 

    Frøyland, Andreas (The University of Bergen, 2016-08-26)
    We investigated the stable boundary layer in Adventdalen by measuring meteorological parameters with Sonic anemometers at two heights, as well as slow response measurements, during a 7 week measurement campaign from February ...
    Master thesis
  • An Equatorial–Extratropical Dipole Structure of the Atlantic Niño 

    Nnamchi, Hyacinth C; Li, Jianping; Kucharski, Fred; Kang, In-Sik; Keenlyside, Noel; Chang, Ping; Farneti, Riccardo (American Meteorological Society, 2016)
    Equatorial Atlantic variability is dominated by the Atlantic Niño peaking during the boreal summer. Studies have shown robust links of the Atlantic Niño to fluctuations of the St. Helena subtropical anticyclone and Benguela ...
    Journal article
  • On the seasonal signal of the Filchner overflow, Weddell Sea, Antarctica 

    Darelius, Elin Maria K.; Strand, Kjersti Opstad; Østerhus, Svein; Gammelsrød, Tor; Årthun, Marius; Fer, Ilker (American Meteorological Society, 2014)
    The cold ice shelf water (ISW) that formed below the Filchner–Ronne Ice Shelf in the southwestern Weddell Sea, Antarctica, escapes the ice shelf cavity through the Filchner Depression and spills over its sill at a rate of ...
    Journal article
  • Observations of barotropic oscillations and their influence on mixing in the Faroe bank channel overflow region 

    Darelius, Elin Maria K.; Ullgren, Jenny; Fer, Ilker (American Meteorological Society, 2013)
    Observations of hydrography, currents, and microstructure are presented together with sea surface height (SSH) patterns from concurrent satellite tracks to describe the subinertial oscillations in the region downstream of ...
    Journal article
  • Faroe Bank Channel Overflow: Mesoscale Variability 

    Darelius, Elin Maria K.; Fer, Ilker; Quadfasel, Detlef (American Meteorological Society, 2011-11)
    The Faroe Bank Channel is the deepest connection through the Greenland–Scotland Ridge, where dense water formed north of the ridge flows southward over the sill crest, contributing to the formation of North Atlantic Deep ...
    Journal article
  • Observed vulnerability of Filchner-Ronne Ice Shelf to wind-driven inflow of warm deep water 

    Darelius, Elin Maria K.; Fer, Ilker; Nicholls, Keith W. (Nature Publishing Group, 2016-08-02)
    The average rate of melting at the base of the large Filchner-Ronne Ice Shelf in the southern Weddell Sea is currently low, but projected to increase dramatically within the next century. In a model study, melt rates ...
    Journal article

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