Now showing items 54-73 of 406

    • Climate controlled mechanisms of subpolar North Atlantic carbon uptake 

      Frob, 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
    • Climate forcing of summer carbon drawdown in the subpolar North Atlantic 

      Svanevik, Magni (The University of Bergen, 2015-08-28)
      This thesis present a 9-year long time series of surface seawater fCO2 data obtained aboard the MV Nuka Arctica. The Nuka Arctica provide full seasonal fCO2 measurements which give a good picture of the fCO2 variability ...
      Master thesis
    • Climatic mean and interannual variation of northern Barents Sea water mass distribution and circulation. A combined study of ROMS, current and hydrography observations 

      Lind, Sigrid Gjessing (The University of Bergen, 2008-06-02)
      Evaluating current measurements, hydrography observations and model (ROMS) results of the northern Barents Sea, water mass distribution and circulation is investigated. Water mass exchange with the Arctic Ocean is linked ...
      Master thesis
    • Climatology of polar lows impacting Norway 

      Haukeland, Magnus (The University of Bergen, 2016-06-01)
      Polar lows (PLs), mesoscale cyclones in high latitudes, impacting Norway are studied in this thesis. A climatology of PLs in the Nordic seas for the period 1979-2015 is made, by applying a cyclone detection and tracking ...
      Master 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
    • A Comparison of LiDAR and Radiosonde Wind Measurements 

      Kumer, Valerie-Marie; Reuder, Joachim; Furevik, Birgitte Rugaard (2014)
      Doppler LiDAR measurements are already well established in the wind energy research and their accuracy has been tested against met mast data up to 100 m above ground. However, the new generation of scanning LiDAR have a ...
      Journal article
    • Complementing Scientific Monsoon Definitions with Social Perception in Bangladesh 

      Reeve, Mathew Alexander; Syed, Mohammed Abu; Spengler, Thomas; Spinney, Jennifer A.; Hossain, Rumana (American Meteorological Society, 2015-01)
      The monsoon onset is a critical event in the Bangladesh calendar, especially for the domestic agricultural sector. Providing information about the monsoon onset for the past, present, and future has potential benefit for ...
      Journal article
    • Connectivity among subpopulations of Norwegian Coastal cod. Impacts of physical-biological factors during egg stages. 

      Myksvoll, Mari Skuggedal (The University of Bergen, 2012-04-19)
      Norwegian Coastal cod form a stationary population of Atlantic cod ( Gadus morhua L.) consisting of several genetically separated subpopulations. A small-scale differen- tiation in marine populations with pelagic ...
      Doctoral thesis
    • Consequences of future increased Arctic runoff on Arctic Ocean stratification, circulation, and sea ice cover 

      Nummelin, Aleksi; Ilicak, Mehmet; Li, Camille; Smedsrud, Lars Henrik (American Geophysical Union (AGU)Wiley, 2016-01-21)
      The Arctic Ocean has important freshwater sources including river runoff, low evaporation, and exchange with the Pacific Ocean. In the future, we expect even larger freshwater input as the global hydrological cycle ...
      Journal article
    • Constraining energetic slope currents through assimilation of high-frequency radar observations 

      Sperrevik, Ann Kristin; Christensen, Kai Håkon; Röhrs, Johannes (Copernicus, 2015-03-11)
      Assimilation of high-frequency (HF) radar current observations and CTD hydrography is performed with the 4D-Var analysis scheme implemented in the Regional Ocean Modeling System (ROMS). We consider both an idealized case, ...
      Journal article
    • Constraining the exchange through the strait of Bab el Mandab 

      Satti, Samah Serelkhatem Abdelkareem (The University of Bergen, 2012-10-01)
      The strait of Bab el Mandab connects the Red Sea with the Indian ocean via the Gulf of Aden. The mean circulation at the strait is a three-layered exchange. The circulation in the Red Sea is understood to be driven by the ...
      Master thesis
    • Coralline algal Barium as indicator for 20th century northwestern North Atlantic surface ocean freshwater variability 

      Hetzinger, S.; Halfar, J.; Zack, T; Mecking, Jennifer V.; Kunz, B.E.; Jacob, D.E.; Adey, Walter H. (Nature Publishing Group, 2013)
      During the past decades climate and freshwater dynamics in the northwestern North Atlantic have undergone major changes. Large-scale freshening episodes, related to polar freshwater pulses, have had a strong influence on ...
      Journal article
    • Coupled Al-Si geochemistry in an ocean general circulation model: A tool for the validation of oceanic dust deposition fields? 

      Gehlen, M.; Heinze, Christoph; Maier-Reimer, E.; Measures, C. I. (American Geophysical Union, 2003-03-19)
      We introduced the marine cycle of Al into a geochemical ocean general circulation model in order to assess the potential of modeled surface ocean dissolved Al as a tracer for dust input to the world ocean. The geochemical ...
      Journal article
    • Critical vulnerabilities of marine and sea ice–based ecosystems in the high Arctic 

      Johannessen, Ola M.; Miles, Martin W. (Springer, 2010-12-01)
      The objectives of this paper are to summarise: (1) observed 20th-century and projected 21st-century changes in key components of the Arctic climate system and (2) probable impacts on the Arctic marine environment, with ...
      Peer reviewedJournal article
    • Current systematic carbon-cycle observations and the need for implementing a policy-relevant carbon observing system 

      Ciais, Philippe; Dolman, AJ; Bombelli, A; Duren, R; Peregon, A; Rayner, PJ; Miller, C; Gobron, N; Kinderman, G; Marland, G; Gruber, N; Chevallier, F; Andres, RJ; Balsamo, G; Bopp, L; Breon, F-M; Broquet, G; Dargaville, R; Battin, TJ; Borges, A; Bovensmann, H; Buchwitz, M; Butler, J; Canadell, JG; Cook, RB; Defries, R; Engelen, R; Gurney, KR; Heinze, Christoph; Heimann, M; Held, A; Henry, M; Law, B; Luyssaert, S; Miller, J; Moriyama, T; Moulin, C; Myneni, RB; Nussli, C; Obersteiner, M; Ojima, D; Pan, Y; Paris, J-D; Piao, SL; Poulter, B; Plummer, S; Quegan, S; Raymond, P; Reichstein, M; Rivier, L; Sabine, C; Schimel, D; Tarasova, O; Valentini, R; Wang, R; Van, Der,Werf,G; Wickland, D; Williams, M; Zehner, C (Copernicus Publications, 2014-07-03)
      A globally integrated carbon observation and analysis system is needed to improve the fundamental understanding of the global carbon cycle, to improve our ability to project future changes, and to verify the effectiveness ...
      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
    • 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 ...
      Doctoral thesis
    • Deep ocean experiments with fossil fuel carbon dioxide: creation and sensing of a controlled plume at 4 km depth 

      Brewer, Peter G.; Peltzer, Edward T.; Walz, Peter; Aya, Izuo; Yamane, Kenji; Kojima, Ryuji; Nakajima, Yasuharu; Nakayama, Noriko; Haugan, Peter Mosby; Johannessen, Truls (Sears Foundation for Marine Research, 2005-01)
      The rapidly rising levels of atmospheric and oceanic CO2 from the burning of fossil fuels has lead to well-established international concerns over dangerous anthropogenic interference with climate. Disposal of captured ...
      Journal articlePeer reviewed
    • The deepening of the Atlantic water in the Lofoten Basin of the Norwegian Sea, demonstrated by using an active reduced gravity model 

      Orvik, Kjell Arild (American Geophysical Union, 2004-06-29)
      The Norwegian Atlantic Current (NwAC) as a poleward eastern boundary current is to be considered as the northern limb of the Meridional Overturning Circulation in the North Atlantic (MOC). It transports warm and saline ...
      Journal articlePeer reviewed
    • Dense water formation and circulation in the Barents Sea 

      Årthun, Marius; Ingvaldsen, Randi; Smedsrud, Lars Henrik; Schrum, Corinna (Elsevier, 2011)
      Dense water masses from Arctic shelf seas are an important part of the Arctic thermohaline system. We present previously unpublished observations from shallow banks in the Barents Sea, which reveal large interannual ...
      Peer reviewedJournal article