Now showing items 1-20 of 618

    • An Investigation of the Optical Properties of Metal Nanoparticles for the Application in a Diffuse Light Solar Cell 

      Dyrhovden, Mirjam Sigmundsdotter (The University of Bergen, 2020-06-25)
      The need of renewable energy is increasing as the global energy demand increases concurrently with greenhouse gas emissions from energy use. According to the International Energy Agency, the energy demand will rise by 1.3 ...
      Master thesis
    • Atlantic thermohaline changes and its implications on the carbon cycle during the Last Interglacial 

      Kessler, Augustin (The University of Bergen, 2020-06-16)
      Large and abrupt changes in the Earth’s climate have been recorded in marine records and Greenland ice cores and mostly characterize the last glacial period. These sudden transitions of climate, occurring within a few ...
      Doctoral thesis
    • Warmer and Wetter Winters over the high-latitude North Atlantic : an atmospheric circulation perspective 

      Wickström, Siiri (The University of Bergen, 2020-05-19)
      The high-latitude North Atlantic -especially the Svalbard archipelago and its surrounding seas - has undergone remarkable changes in the last half-century. These regions are recognized as a hotspot of the Arctic ...
      Doctoral thesis
    • Modelling Energy Systems with Variable Renewable Energy 

      Ringkjøb, Hans-Kristian (The University of Bergen, 2020-05-15)
      Today, the majority of anthropogenic greenhouse gas emissions stem from the burning of fossil fuels for energy purposes. In order to avoid devastating consequences of climate change, the world needs to reduce its emissions ...
      Doctoral thesis
    • The role of the Southern Ocean in past global biogeochemical cycling 

      Morée, Anne (The University of Bergen, 2020-04-27)
      This thesis describes several recent advances on the role of the Southern Ocean in past global biogeochemical cycling. We focus on the ocean of the Last Glacial Maximum (LGM) and the Pleistocene epoch and apply proxies of ...
      Doctoral thesis
    • Understanding of European Cold Extremes, Sudden Stratospheric Warming, and Siberian Snow Accumulation in the Winter of 2017/18 

      Lü, Zhuozhuo; Li, Fei; Orsolini, Yvan; Gao, Yongqi; He, Shengping (American Meteorological Society, 2020)
      It is unclear whether the Eurasian snow plays a role in the tropospheric driving of sudden stratospheric warming (SSW). The major SSW event of February 2018 is analyzed using reanalysis datasets. Characterized by predominant ...
      Journal article
    • Atlantic Meridional Overturning Circulation and δ13C Variability During the Last Interglacial 

      Kessler, Augustin; Bouttes, Nathaelle; Roche, Didier M.; Ninnemann, Ulysses Silas; Galaasen, Eirik Vinje; Tjiputra, Jerry (American Geophysical Union, 2020)
      The Atlantic Meridional Overturning Circulation (AMOC) is thought to be relatively vigorous and stable during Interglacial periods on multimillennial (equilibrium) timescales. However, recent proxy (δ13C benthic) reconstructions ...
      Journal article
    • Development of community, capabilities and understanding through unmanned aircraft-based atmospheric research: The LAPSE-RATE campaign 

      De Boer, Gijs; Diehl, Constantin; Jacob, Jamey; Houston, Adam; Smith, Suzanne; Chilson, Phillip B.; Schmale, David; Intrieri, Janet; Pinto, James; Elston, Jack; Brus, David; Kemppinen, Osku; Clark, Alex; Lawrence, Dale; Bailey, Sean; Sama, Michael; Frazier, Amy; Crick, Christopher; Natalie, Victoria; Pillar-Little, Elizabeth; Klein, Petra; Waugh, Sean; Lundquist, Julie K.; Barbieri, Lindsay; Kral, Stephan; Jensen, Anders; Dixon, Cory; Borenstein, Steven; Hesselius, Daniel; Human, Kathleen; Hall, Philip; Argrow, Brian; Thronberry, Troy; Wright, Randy; Kelly, Jason (American Meteorological Society, 2020)
      Because unmanned aircraft systems (UAS) offer new perspectives on the atmosphere, their use in atmospheric science is expanding rapidly. In support of this growth, the International Society for Atmospheric Research Using ...
      Journal article
    • A wavelet-entropy based segmentation of turbulence measurements from a moored shear probe near the wavy sea surface 

      Bakhoday Paskyabi, Mostafa (Springer Nature, 2019-12-17)
      In this study, we explore the applicability of a wavelet-entropy based segmentation technique in reduction of motion-induced contaminations in time-domain from subsurface turbulence measurements made by a moving shear ...
      Journal article
    • Surface ocean pH and buffer capacity: past, present and future 

      Jiang, Li-qing; Carter, Brendan R; Feely, Richard A; Lauvset, Siv Kari; Olsen, Are (Springer, 2019-12-09)
      The ocean’s chemistry is changing due to the uptake of anthropogenic carbon dioxide (CO2). This phenomenon, commonly referred to as “Ocean Acidification”, is endangering coral reefs and the broader marine ecosystems. In ...
      Journal article
    • The importance of wind forcing in fjord wave modelling 

      Christakos, Konstantinos; Furevik, Birgitte Rugaard; Aarnes, Ole Johan; Breivik, Øyvind; Tuomi, Laura; Byrkjedal, Øyvind (Springer, 2019-12-03)
      Accurate predictions of surface ocean waves in coastal areas are important for a number of marine activities. In complex coastlines with islands and fjords, the quality of wind forcing significantly affects the results. ...
      Journal article
    • Low Level Jets over the Southern North Sea 

      Wagner, David; Steinfeld, Gerald; Witha, Björn; Wurps, Hauke; Reuder, Joachim (Science Publishers, 2019-12-02)
      An extensive analysis of Low Level Jets (LLJs) over the Southern North Sea is presented. The study is based on observational data from a wind LiDAR and a passive microwave radiometer, operated from May 2015 to October 2016 ...
      Journal article
    • The Lagrangian particle dispersion model FLEXPART version 10.4 

      Pisso, Ignacio; Sollum, Espen; Grythe, Henrik; Kristiansen, Nina Iren; Cassiani, Massimo; Eckhardt, Sabine; Arnold, Delia; Morton, Don; Thompson, Rona Louise; Zwaaftink, Christine Groot; Evangeliou, Nikolaos; Sodemann, Harald; Haimberger, Leopold; Henne, Stephan; Brunner, Dominik; Burkhart, John; Fouilloux, Anne Claire; Brioude, Jerome; Philipp, Anne; Seibert, Petra; Stohl, Andreas (Copernicus Publications, 2019-12-02)
      The Lagrangian particle dispersion model FLEXPART in its original version in the mid-1990s was designed for calculating the long-range and mesoscale dispersion of hazardous substances from point sources, such as those ...
      Journal article
    • Ocean-wave-atmosphere interaction processes in a fully coupled modelling system 

      Wu, Lichuan; Breivik, Øyvind; Rutgersson, Anna (American Geophysical Union, 2019-11-27)
      A high‐resolution coupled ocean‐wave‐atmosphere model (Uppsala University Coupled model, UU‐CM) of the Baltic Sea and the North Sea with improved representation of ocean‐wave‐atmosphere interaction processes is presented. ...
      Journal article
    • Vertical structure and seasonal variability of the inflow to the Lofoten Basin inferred from high resolution Lagrangian simulations 

      Dugstad, Johannes Sandanger; Kozalka, Inga Monika; Isachsen, Pål Erik; Dagestad, Knut-Frode; Fer, Ilker (American Geophysical Union, 2019-11-13)
      The Lofoten Basin in the eastern Nordic Seas plays a central role in modifying the warm Atlantic Water inflow toward the Arctic Ocean. Here, the Atlantic Water experiences increased residence times, cooling, and substantial ...
      Journal article
    • Strømforhold i Byfjorden i Bergen 

      Utkilen, Inga Breisnes (The University of Bergen, 2019-11-01)
      Arbeidet tar for seg Byfjorden i Bergen, med fokus på hydrografi, strøm, utskiftnings og spredning av vannmasser. Fjordmodellen NorFjords160m er brukt til å se på både hydrografi og strøm, og sammenlignet med observasjoner ...
      Master thesis
    • Trends of Ocean Acidification and pCO2 in the Northern North Sea, 2003-2015 

      Omar, Abdirahman; Thomas, Helmuth; Olsen, Are; Becker, Meike; Skjelvan, Ingunn; Reverdin, Gilles (American Geophysical Union, 2019-10-29)
      For continental shelf regions, the long‐term trend in sea surface carbon dioxide (CO2) partial pressure (pCO2) and rates of ocean acidification are not accurately known. Here, we investigate the decadal trend of observed ...
      Journal article
    • Land Surface Data Assimilation of Satellite Derived Surface Soil Moisture : Towards an Integrated Representation of the Arctic Hydrological Cycle 

      Blyverket, Jostein (The University of Bergen, 2019-10-21)
      The ability to accurately determine soil water content (soil moisture) over large areas of the Earth’s surface has potential implications in meteorology, hydrology, water and natural hazards management. The advent of ...
      Doctoral thesis
    • Hydrological Modelling of Ethiopian Watersheds : The Application of Hydrological Models for Flow Forecasting and Analysis of Sensitivity to Climate and Landuse Changes 

      Mengistu, Dereje Tesfahun (The University of Bergen, 2019-10-15)
      Hydrological modelling studies vary depending on the purpose, data availability and number of outputs required. Quantifying the hydrological responses to various human- and climate-induced changes requires different modelling ...
      Doctoral thesis
    • OceanGliders: A component of the integrated GOOS 

      Testor, Pierre; DeYoung, Brad; Rudnick, Daniel L.; Glenn, Scott; Hayes, Daniel; Lee, Craig; Pattiaratchi, Charitha B.; Hill, Katherine L.; Heslop, Emma; Turpin, Victor; Alenius, Pekka; Barrera, Carlos; Barth, John; Beaird, Nicholas; Becu, Guislain; Bosse, Anthony; Bourrin, François; Brearley, Alex; Chao, Yi; Chen, Sue; Chiggiato, Jacopo; Coppola, Laurent; Crout, Richard; Cummings, James; Curry, Beth; Curry, Ruth; Davis, Richard; Desai, Kruti; DiMarco, Steven; Edwards, Catherine; Fielding, Sophie; Fer, Ilker; Frajka-Williams, Eleanor; Gildor, Hezi; Goni, Gustavo; Gutierrez, Dimitri; Hanson, Stephanie; Haugan, Peter M.; Hebert, David; Heiderich, Joleen; Heywood, Karen J.; Hogan, Patrick; Houpert, Loïc; Huh, Sik; Inall, Mark E.; Ishii, Masso; Ito, Schin-ichi; Itoh, Sachihiko; Jan, Sen; Kaiser, Jan; Karstensen, Johannes; Kirkpatrick, Barbara; Klymak, Jody; Kohut, Josh; Krahmann, Gerd; Krug, Marjolaine; McClatchie, Sam; Marin, Frederic; Mauri, Elena; Mehra, Avichal; Meredith, Michael P.; Miles, Travis; Morell, Julio; Mortier, Laurent; Nicholson, Sarah; O'Callaghan, Joanne; O'Conchubhair, Diarmuid; Oke, Peter R.; Sanz, Enric P.; Palmer, Matthew; Park, JongJin; Perivoliotis, Leonidas; Poulain, Pierre-Marie; Perry, Ruth; Queste, Bastien; Rainville, Luc; Rehm, Eric; Roughan, Moninya; Rome, Nicholas; Ross, Tetjana; Ruiz, Simon; Saba, Grace; Schaeffer, Amandine; Schonau, Martha; Schroeder, Katrin; Shimizu, Yugo; Sloyan, Bernadette M.; Smeed, David; Snowden, Derrick P.; Song, Yumi; Swart, Sebastiaan; Tenreiro, Miguel; Thompson, Andrew F.; Tintore, Joaquin; Todd, Robert E.; Toro, Cesar; Venables, Hugh; Waterman, Stephanie; Watlington, Roy; Wilson, Doug (Frontiers, 2019-10-02)
      The OceanGliders program started in 2016 to support active coordination and enhancement of global glider activity. OceanGliders contributes to the international efforts of the Global Ocean Observation System (GOOS) for ...
      Journal article