• Atmospheric boundary layers in storms: advanced theory and modelling applications 

      Zilitinkevich, Sergej S.; Esau, Igor N.; Baklanov, A. (Peer reviewed; Journal article, 2005-03-29)
      Turbulent planetary boundary layers (PBLs) control the exchange processes between the atmosphere and the ocean/land. The key problems of PBL physics are to determine the PBL height, the momentum, energy and matter fluxes ...
    • Atmospheric Circulation Response to Short-Term Arctic Warming in an Idealized Model 

      Hell, Momme; Schneider, Tapio; Li, Camille (Journal article; Peer reviewed, 2020)
      Recent Arctic sea ice loss in fall has been posited to drive midlatitude circulation changes into winter and even spring. Past work has shown that sea ice loss can indeed trigger a weakening of the stratospheric polar ...
    • Atmospheric Contributions to the Reversal of Surface Temperature Anomalies Between Early and Late Winter Over Eurasia 

      Xu, Xinping; He, Shengping; Zhou, Botao; Wang, Huijun (Journal article; Peer reviewed, 2022)
      Observations have shown subseasonal reversal of temperature anomalies between early and late winter over Eurasia, which is distinct from the seasonal mean condition. Based on the reanalysis data, the 1800-year control ...
    • Atmospheric Drivers of Wind Turbine Blade Leading Edge Erosion: Review and Recommendations for Future Research 

      Pryor, Sara C.; Barthelmie, Rebecca Jane; Cadence, Jeremy; Dellwik, Ebba; Hasager, Charlotte Bay; Kral, Stephan Thomas; Reuder, Joachim; Rodgers, Marianne; Veraart, Marijn (Journal article; Peer reviewed, 2022)
      Leading edge erosion (LEE) of wind turbine blades causes decreased aerodynamic performance leading to lower power production and revenue and increased operations and maintenance costs. LEE is caused primarily by materials ...
    • Atmospheric response to removal of Southern Hemisphere sea ice - a model study 

      Ravnestad, Kristen Myklebust (Master thesis, 2010-06-01)
      The atmospheric response to the removal of Southern Hemisphere sea ice is studied using the ICTP AGCM (SPEEDY) model with an uncoupled ocean. The results show large increases in surface heat flux from the ocean to the ...
    • Atmospheric response to zonally averaged sea surface temperatures in the North Atlantic - a model study 

      Fagerli, Stig-Arild (Master thesis, 2008-05-29)
      A less dynamically active ocean will most likely lead to a more zonal sea surface temperature (SST) distribution. In order to identify if, and how such an effect affects the atmospheric variability, idealized experiments ...
    • Atmospheric signature of the Agulhas current 

      Nkwinkwa Njouodo, Arielle Stela; Koseki, Shunya; Keenlyside, Noel; Rouault, Mathieu (Journal article; Peer reviewed, 2018)
      Western boundary currents play an important role in the climate system by transporting heat poleward and releasing it to the atmosphere. While their influence on extratropical storms and oceanic rainfall is becoming ...
    • Atmospheric-driven state transfer of shore-fast ice in the northeastern Kara Sea 

      Divine, Dmitry; Korsnes, Reinert; Makshtas, Alexander; Godtliebsen, Fred; Svendsen, Harald (Journal article, 2005-09-21)
      Frequencies of observed occurrences of shore-fast ice in the northeastern Kara Sea for each month during 1953–1990 reveal a multimodality of shore-fast ice extent in late winter and spring. The fast ice extent exhibits ...
    • Attribution of multi-annual to decadal changes in the climate system: The Large Ensemble Single Forcing Model Intercomparison Project (LESFMIP) 

      Smith, Doug M.; Gillett, Nathan P.; Simpson, Isla R.; Athanasiadis, Panos J.; Baehr, Johanna; Bethke, Ingo; Bilge, Tarkan Aslan; Bonnet, Rémy; Boucher, Olivier; Findell, Kirsten L.; Gastineau, Guillaume; Gualdi, Silvio; Hermanson, Leon; Leung, L. Ruby; Mignot, Juliette; Müller, Wolfgang A.; Osprey, Scott; Otterå, Odd Helge; Persad, Geeta G.; Scaife, Adam A.; Schmidt, Gavin A.; Shiogama, Hideo; Sutton, Rowan T.; Swingedouw, Didier; Yang, Shuting; Zhou, Tianjun; Ziehn, Tilo (Journal article; Peer reviewed, 2022)
      Multi-annual to decadal changes in climate are accompanied by changes in extreme events that cause major impacts on society and severe challenges for adaptation. Early warnings of such changes are now potentially possible ...
    • Automated Measurements of Whitecaps on the Ocean Surface from a Buoy-Mounted Camera 

      Paskyabi, Mostafa Bakhoday; Reuder, Joachim; Flügge, Martin (Peer reviewed; Journal article, 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 ...
    • Autonomous Ocean Turbulence Measurements Using Shear Probes on a Moored Instrument 

      Fer, Ilker; Paskyabi, Mostafa Bakhoday (Peer reviewed; Journal article, 2014-02)
      An internally recording, autonomous instrument has been tested for measurements of ocean turbulence from a mooring line. Measurements were made at a single level in the water column, but for an extended period of time, at ...
    • Avvik mellom estimert og faktisk energiproduksjon for småkraftverk 

      Lie, Sindre Blomvågnes (Master thesis, 2016-06-01)
      I denne oppgaven har jeg sett på årsakene til avviket mellom estimert og faktisk energiproduksjon for tre av kraftverkene som Småkraft AS sammen med grunneier har hatt i drift i 8-9 år. Kraftverkene jeg har sett på er Ytre ...
    • Barents Sea ice cover reflects Atlantic inflow 

      Årthun, Marius; Eldevik, Tor; Smedsrud, Lars Henrik; Skagseth, Øystein (Journal article, 2011)
      The recent Arctic winter sea-ice retreat is most pronounced in the Barents Sea. Using available observations of the Atlantic inflow to the Barents Sea and results from a regional ice-ocean model we assess the role of ...
    • Baroclinic Instability in the West Spitsbergen Current 

      Teigen, Sigurd Henrik; Nilsen, Frank; Skogseth, Ragnheid; Gjevik, Bjørn; Beszczynska-Möller, Agnieszka (Peer reviewed; Journal article, 2011-07-15)
      Baroclinic instability in the West Spitsbergen Current is investigated, based on data from an array of current meter moorings along 78.83oN, across the deeper (1000-2400 m) section of the continental slope west of Svalbard. ...
    • Barotropic instability in the West Spitsbergen Current 

      Teigen, Sigurd Henrik; Nilsen, Frank; Gjevik, Bjørn (Peer reviewed; Journal article, 2010-07-24)
      Barotropic instability in the shoreward branch of the West Spitsbergen Current is investigated on the basis of data from an array of current meter moorings along 78.83°N, across the upper continental slope and shelf break ...
    • Basin Interactions and predictability 

      Keenlyside, Noel; Kosaka, Yu; Vigaud, Nicholas; Robertson, Andrew; Wang, Yiguo; Dommenget, Dietmar; Luo, Jing-Jia; Matei, Daniela (Chapter, 2020)
    • Batterilading i hybride fremdriftssystemer ved hjelp av tapsenergi fra forbrenningsmotoren 

      Nygård, Erlend (Master thesis, 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 sectors, ...
    • Bedymo: A combined quasi-geostrophic and primitive equation model in σ coordinates 

      Spensberger, Clemens; Thorsteinsson, Trond; Spengler, Thomas (Journal article; Peer reviewed, 2022)
      This paper introduces the Bergen Dynamical Model (Bedymo), an idealized atmospheric circulation model, which combines the quasi-geostrophic approximation and the hydrostatic primitive equations into one modelling framework. ...
    • Benefit of vertical localization for sea surface temperature assimilation in isopycnal coordinate model 

      Wang, Yiguo; Counillon, Francois Stephane; Barthelemy, Sebastien Jean-Claude; Barth, Alexander (Journal article; Peer reviewed, 2022-12-15)
      Sea surface temperature (SST) observations are a critical data set for long-term climate reconstruction. However, their assimilation with an ensemble-based data assimilation method can degrade performance in the ocean ...