Now showing items 97-116 of 3152

    • Arctic Holocene proxy climate database – New approaches to assessing geochronological accuracy and encoding climate variables 

      Sundqvist, H.S.; Kaufmann, Darrell; MaKay, Nickholas; Axford, Y.; Balascio, Nickholas; Briner, Jason P.; Cwynar, L.C.; Sejrup, Hans Petter; Subetto, D.A.; Andrews, J.T.; Bakke, Jostein; Birks, Harry John Betteley; Brooks, S.J.; Vernal, A.E.; Jennings, A.E.; Ljungvist, K.M.; Rûhland, K.M.; Saenger, C.; Smol, J.P.; Viau, A.E. (Copernicus Publications, 2014-08-29)
      We present a systematic compilation of previously published Holocene proxy climate records from the Arctic. We identified 170 sites from north of 58° N latitude where proxy time series extend back at least to 6 cal ka (all ...
      Journal article
    • The Arctic Mid-Ocean Ridge Vent Fields - A valuable Resource for Marine Bioprospecting? 

      Wissuwa, Juliane (The University of Bergen, 2016-05-25)
      The past decade the awareness for sustainability has come more and more into focus of society in terms of a need for eco-friendlier processes and renewable energies, new and better pharmaceuticals, and agricultural- and ...
      Doctoral thesis
    • Arctic Ocean carbon biogeochemistry under climate change and ocean acidification 

      Silyakova, Anna (The University of Bergen, 2013-05-10)
      Human-induced CO2 emissions to the atmosphere cause climate change and ocean acidification. The strongest indicators of climate change and ocean acidification are expected to be found in the Arctic Ocean (AO). The AO ...
      Doctoral thesis
    • The Arctic Ocean in a Fresh and Warm Future 

      Nummelin, Aleksi (The University of Bergen, 2016-10-28)
      The Arctic Ocean remains one of the least known ocean regions due to its remote location, year-round sea ice cover, and harsh weather conditions. Today, knowledge of the Arctic atmosphere-sea ice-ocean system increases ...
      Doctoral thesis
    • The Arctic Sea Ice - Melting During Summer or not Freezing in Winter? 

      Skaret, Henriette Bærheim (The University of Bergen, 2016-06-01)
      The Arctic sea ice cover has retreated rapidly during the last three decades, concurrent with recent global temperature increase both in the atmosphere and in the ocean. The sea ice cover has experienced a retreat in extent ...
      Master thesis
    • Arctic sea ice altimetry - advances and current uncertainties 

      Zygmuntowska, Marta (The University of Bergen, 2014-06-11)
      One of the most prominent features of global climate change is the reduction in Arctic sea ice thickness. The main tool to derive sea ice thickness on an Arctic wide scale is altimetry from satellites, yet current estimates ...
      Doctoral thesis
    • 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 ...
      Journal article
    • The Arctic Summer Cloud Ocean Study (ASCOS): Overview and experimental design 

      Tjernström, Michael; Leck, Caroline; Birch, Cathryn E.; Bottenheim, Jan W.; Brooks, Barbara J.; Brooks, Ian M.; Bäcklin, Leif; Chang, Rachel; de Leeuw, Gerrit; Di Liberto, Luca; De La Rosa, Sara; Granath, Eva; Graus, Martin; Hänsel, Armin; Heintzenberg, Jost; Held, Andreas; Hind, Andrew; Johnston, Paul; Knulst, Johan C.; Martin, Maria; Matrai, Patricia A.; Mauritsen, Thorsten; Müller, Markus; Norris, Sarah J.; Orellana, Mónica V.; Orsini, Douglas A.; Paatero, Jussi; Persson, P. Ola G.; Gao, Qiuju; Rauschenberg, Carlton; Ristovski, Zoran; Sedlař, Joseph; Shupe, Matthew D.; Sierau, Berko; Sirevaag, Anders; Sjögren, Staffan; Stetzer, Olaf; Swietlicki, Erik; Szczodrak, Malgorzata; Vaattovaara, Petri; Wahlberg, Nils; Westberg, Maria; Wheeler, Cassie R. (Copernicus Publications, 2014-03-19)
      The climate in the Arctic is changing faster than anywhere else on earth. Poorly understood feedback processes relating to Arctic clouds and aerosol–cloud interactions contribute to a poor understanding of the present ...
      Journal article
    • Arctic/Atlantic exchanges via the Subpolar Gyre 

      Langehaug, Helene Reinertsen; Medhaug, Iselin; Eldevik, Tor; Otterå, Odd Helge (American Meteorological Society, 2012)
      In the present study we investigate the decadal variability in the strength and shape of the Subpolar Gyre (SPG) in a 600-year pre-industrial simulation using the Bergen Climate Model. The atmospheric influence on the ...
      Journal article
    • Argo Profiling Floats in the Nordic Seas: Deep-water circulation, hydrography and comparisons to the TOPAZ model 

      Bjordal, Katrine Dale (The University of Bergen, 2006-05)
      Master thesis
    • Artssuksesjon av planteplankton i Raunefjorden våren 2010. Reguleringsmekanismer og elementsammensetning ved røntgenfluorescens 

      Haugen, Stig Bjarte (The University of Bergen, 2011-10-03)
      Denne studien av artssuksesjon og reguleringsmekanismer er satt sammen av to deler. Den ene delen består av et tokt til Svinøysnittet, mens den andre er en serie av prøvetakinger og målinger i Raunefjorden i Hordaland. ...
      Master thesis
    • Aspects on interactions between mid- to high latitude atmospheric circulation and some surface processes 

      Byrkjedal, Øyvind (The University of Bergen, 2006-06-08)
      The Arctic is a hot topic in Climate Research. A large number of signs of a warming Arctic Climate have been identified the latest years. This is of major concern in light of the increasing atmospheric content of greenhouse ...
      Doctoral thesis
    • Assessing and comparing climatic control on distribution and reproduction of alpine and lowland species in the subalpine habitat of western Norway. 

      Meineri, Eric (The University of Bergen, 2012-02-06)
      Aims and background: Species range shift is among the most well-documented responses to climate change. As a result, a growing number of studies model species climatic niches to predict how species ranges may displace ...
      Doctoral thesis
    • Assessing and Mitigating Risks in Computer Systems 

      Netland, Lars-Helge (The University of Bergen, 2008-09-26)
      When it comes to non-trivial networked computer systems, bulletproof security is very hard to achieve. Over a system's lifetime new security risks are likely to emerge from e.g. newly discovered classes of vulnerabilities ...
      Doctoral thesis
    • Assessing linkages between ice sheet calving, subpolar gyre hydrography and deep water ventilation during the last glaciation 

      Rutledal, Sunniva (The University of Bergen, 2017-06-23)
      It is commonly postulated that ice sheet dynamics and freshwater perturbations in the North Atlantic were linked to disruptions in deep water circulation and North Atlantic cooling in the past. However, the exact nature ...
      Master thesis
    • Assessing mackerel behaviour following crowding-induced stress in purse seine fisheries 

      Howarth, Kirsten (The University of Bergen, 2016-06-01)
      The practice of slipping in purse seine fisheries has been shown to cause high levels of delayed mortality in released fish. This unaccounted mortality could lead to bias in stock assessments, and brings the sustainability ...
      Master thesis
    • Assessing Model Uncertainties Through Proper Experimental Design 

      Hvidevold, Hilde Kristine; Alendal, Guttorm; Johannessen, Truls; Mannseth, Trond (Elsevier, 2013)
      This paper assesses how parameter uncertainties in the model for rise velocity of CO2 droplets in the ocean cause uncertainties in their rise and dissolution in marine waters. The parameter uncertainties in the rise velocity ...
      Journal article
    • An assessment of future extreme precipitation in western Norway using a linear model 

      Caroletti, Giulio Nils; Barstad, Ida (The University of Bergen, 2010-11-26)
      A Linear Model (Smith and Barstad, 2004) was used to dynamically downscale Orographic Precipitation over western Norway from twelve General Circulation Model simulations. The GCM simulations come from the A1B emissions ...
      Journal article
    • Assessment of Sequential and Simultaneous Ensemble-based History Matching Methods for Weakly Non-linear Problems 

      Fossum, Kristian (The University of Bergen, 2015-02-13)
      The ensemble Kalman filter (EnKF) has, since its introduction in 1994, gained much attention as a tool for sequential data assimilation in many scientific areas. In recent years, the EnKF has been utilized for estimating ...
      Doctoral thesis
    • Assessment of the biodegradability of xanthan in offshore injection water 

      Hovland, Beate (The University of Bergen, 2015-04-29)
      The application of biopolymers in EOR operations is considered environmental friendly compared to synthetic polymers. However, microbial degradation of the biopolymers may lead to a deterioration of effect in ...
      Master thesis