Now showing items 1-20 of 264

  • Observed anomalous atmospheric patterns in summers of unusual Arctic sea icemelt 

    Knudsen, Erlend Moster (WileyAmerican Geophysical Union, 2015-04-16)
    The Arctic sea ice retreat has accelerated over the last decade. The negative trend is largest in summer, but substantial interannual variability still remains. Here we explore observed atmospheric conditions and feedback ...
  • Linking Northern High-Latitude Cryospheric Changes to Large-Scale Atmospheric Circulation 

    Knudsen, Erlend Moster (The University of Bergen, 2015-03-20)
    Warming twice as fast as the rest of the globe, the northern high-latitudes arguably show the clearest evidences of observed and projected climate changes. Two of these are the rapid loss of Arctic sea ice and the shrinking ...
  • Monsoon Onset in Bangladesh: Reconciling scientific and societal perspectives 

    Reeve, Mathew Alexander (The University of Bergen, 2015-02-13)
    People of Bangladesh depend on the monsoon, and many of them depend on the timing of the monsoon onset for their livelihoods. In this study, we are motivated by the idea of providing information to these people about the ...
  • Modelling and observations of upwelling along the southwest coast of India and its intrusion into the Bay of Bengal, during summer monsoon 

    George, Mary Swapna (The University of Bergen, 2015-01-19)
    Coastal upwelling regions are among world´s most productive areas, with high levels of primary productivity and fishery potentials. The southwest coast of India is a classic example of such an upwelling system during the ...
  • Extremes and Trends in Wave Climate. A regional and global study 

    Aarnes, Ole Johan (The University of Bergen, 2015-01-16)
    Wind generated surface waves represent a critical factor for offshore constructions and coastal development, and are highly relevant in scientific questions related to climate and weather. The sea state can be described ...
  • Marine Wind and Wave Height Trends at Different ERA-Interim Forecast Ranges 

    Aarnes, Ole Johan; Abdalla, Saleh; Bidlot, Jean-Raymond; Breivik, Øyvind (American Meteorological Society, 2015-01-15)
    Trends in marine wind speed and significant wave height are investigated using the global reanalysis ERA-Interim over the period 1979–2012, based on monthly-mean and monthly-maximum data. Besides the traditional reanalysis, ...
  • Northern Hemisphere storminess in the Norwegian Earth System Model (NorESM1-M) 

    Knudsen, Erlend Moster; Walsh, J. E. (Copernicus Publications, 2014-12-16)
    Metrics of storm activity in Northern Hemisphere high- and midlatitudes are evaluated from historical output and future projections by the Norwegian Earth System Model (NorESM1-M) coupled global climate model. The European ...
  • A brief history of climate – the northern seas from the Last Glacial Maximum to global warming 

    Eldevik, Tor; Risebrobakken, Bjørg; Bjune, Anne Elisabeth; Andersson, Carin; Birks, Harry John Betteley; Dokken, Trond Martin; Drange, Helge; Glessmer, Mirjam Sophia; Li, Camille; Nilsen, Jan Even Øie; Otterå, Odd Helge; Richter, Kristin; Skagseth, Øystein (Elsevier, 2014-12)
    The understanding of climate and climate change is fundamentally concerned with two things: a well-defined and sufficiently complete climate record to be explained, for example of observed temperature, and a relevant ...
  • Decadal solar irradiance variability in northern Europe 

    Parding, Kajsa (The University of Bergen, 2014-11-28)
    Shortwave (SW) radiation from the Sun is the external energy source on Earth and the fundamental input of energy into the climate system. Variations of the SW radiation and its transfer through the atmosphere can have ...
  • Arctic sea ice and Eurasian climate: A review 

    Gao, Yongqi; Sun, Jianqi; Li, Fei; He, Shengping; Sandven, Stein; Yan, Qing; Zhang, Zhongshi; Lohmann, Katja; Keenlyside, Noel; Furevik, Tore; Suo, Lingling (Science Press, 2014-11-28)
    The Arctic plays a fundamental role in the climate system and has shown significant climate change in recent decades, including the Arctic warming and decline of Arctic sea-ice extent and thickness. In contrast to the ...
  • Dynamical Perspectives on the Formation and Intensification of Polar Lows 

    Terpstra, Annick (The University of Bergen, 2014-11-25)
    This thesis consists of a collection of scientific publications addressing dynamical aspects of the formation and intensification of polar lows. Polar lows are small scale, intense, short-lived cyclones developing over ...
  • A view on possible regime shifts in the North Atlantic subpolar gyre in the mid 1920s and 1990s 

    Lotsberg, Emilie Otilde (The University of Bergen, 2014-10-22)
    There is strong observational support for two significant warming episodes of the North Atlantic Subpolar Gyre (SPG), one starting in the mid 1920s the other in the mid 1990s. Possible mechanisms responsible for the two ...
  • The BLLAST field experiment: Boundary-Layer late afternoon and sunset turbulence 

    Lothon, Marie; Louhou, Fabienne; Pino, David; Couvreux, Fleur; Pardyjak, Erik; Reuder, Joachim; Vilà-Guerau De Arellano, Jordi; Durand, Pierre; Hartogensis, Oscar K.; Legain, Dominique; Augustin, Patrick V.; Gioli, Beniamino; Lenschow, Donald H.; Faloona, Ian C.; Yagüe, Carlos; Alexander, Daniel C.; Angevine, Wayne M.; Bargain, Erwan; Barrié, Joël; Bazile, Eric; Bezombes, Yannick; Blay-Carreras, Estel; Van De Boer, Anneke; Boichard, Jean Luc; Bourdon, Anne; Butet, Alain; Campistron, Bernard A.; De Coster, Olivier; Cuxart, Joan; Dabas, Alain M.; Darbieu, Clara; Deboudt, Karine; Delbarre, Hervé; Derrien, Solène; Flament, Pascal; Fourmentin, Marc; Garai, Anirban; Gibert, Fabien; Graf, Alexander T.; Gröbner, Julian; Guichard, Françoise; Jiménez, Mantonia Antonia; Jonassen, Marius Opsanger; Van Den Kroonenberg, Aline C.; Magliulo, Vincenzo; Martin, Sabrina; Martinez, Daniel; Mastrorillo, Laurence; Moene, Arnold F.; Molinos, Francisco Lendinez; Moulin, Emilie; Pietersen, Henk P.; Piguet, Bruno; Pique, Eric; Román-Cascón, Carlos; Rufin-Soler, Caroline; Saïd, Frédérique; Sastre-Marugán, Mariano; Seity, Yann; Steeneveld, Gert Jan; Toscano, Piero; Traullé, Olivier; Tzanos, Diane; Wacker, Stefan; Wildmann, Norman; Zaldei, Alessandro (Copernicus Publications, 2014-10-16)
    Due to the major role of the sun in heating the earth's surface, the atmospheric planetary boundary layer over land is inherently marked by a diurnal cycle. The afternoon transition, the period of the day that connects the ...
  • Eddy-resolving simulations of the Fimbul Ice Shelf cavity circulation: Basal melting and exchange with open ocean 

    Hattermann, Tore; Smedsrud, Lars H.; Nøst, Ole Anders; Lilly, Jonathan M.; Galton-Fenzi, Ben K. (Elsevier, 2014-10)
    Melting at the base of floating ice shelves is a dominant term in the overall Antarctic mass budget. This study applies a high-resolution regional ice shelf/ocean model, constrained by observations, to (i) quantify present ...
  • Modelling alongshore flow in a semi-enclosed lagoon strongly forced by tides and waves 

    Taskjelle, Torbjørn; Barthel, Knut; Christensen, Kai Håkon; Furaca, Noca; Gammelsrød, Tor; Hoguane, Antonio Mubango; Nharreluga, Bilardo (Elsevier, 2014-09-26)
    Alongshore flows strongly driven by tides and waves is studied in the context of a one-dimensional numerical model. Observations from field surveys performed in a semi-enclosed lagoon (1.7 km×0.2 km) outside Xai-Xai, ...
  • Individual based modeling of North Atlantic common minke whale (Balaenoptera acutorostrata) migratory and foraging behaviour in the Nordic Seas 

    Dillon, Ryan James (The University of Bergen, 2014-09-01)
    The North Atlantic common minke whale (Balaenoptera Acutorostrata) is an abundant, top-level marine predator in the Nordic Seas and Barents Sea ecosystems whose large-scale migratory and foraging behaviors are widely ...
  • The SailBuoy remotely-controlled unmanned vessel: Measurements of near surface temperature, salinity and oxygen concentration in the Northern Gulf of Mexico 

    Ghani, Mahmud Hasan; Hole, Lars R; Fer, Ilker; Kourafalou, Vassiliki H.; Wienders, Nicolas; Kang, HeeSook; Drushka, Kyla; Peddie, David (Elsevier, 2014-09)
    An experimental deployment of a new type of unmanned vessel is presented. The Christian Michelsen Research SailBuoy, a remotely-controlled surface vehicle, sampled near-surface properties during a two-month mission in the ...
  • Dissipation measurements using temperature microstructure from an underwater glider 

    Peterson, Algot Kristoffer; Fer, Ilker (Elsevier, 2014-09)
    Microstructure measurements of temperature and current shear are made using an autonomous underwater glider. The glider is equipped with fast-response thermistors and airfoil shear probes, providing measurements of dissipation ...
  • Analysis of the vertical temperature structure in the Bergen valley, Norway, and its connection to pollution episodes, and its connection to pollution episodes 

    Wolf, Tobias; Esau, Igor; Reuder, Joachim (WileyAmerican Geophysical Union, 2014-09)
    The vertical temperature profile in the lowest 1000m of the atmosphere determines a number of important physical processes and meteorological phenomena such as high concentrations of anthropogenic air pollutants in urban ...
  • Small-scale turbulence dynamics under sea surface gravity waves 

    Paskyabi, Mostafa Bakhoday (The University of Bergen, 2014-08-20)
    The ocean surface is a complex boundary where air-sea fluxes of mass, momentum and energy take place. The processes at this dynamic interface are of great importance in the coupled atmosphere-ocean system. The coupling ...