• Cold Air Mass Analysis of the Record-Breaking Cold Surge Event over East Asia in January 2016 

      Yamaguchi, Junpei; Kanno, Yuki; Chen, Guixing; Iwasaki, Toshiki (Peer reviewed; Journal article, 2019)
      An extreme cold surge event caused record-breaking low temperatures in East Asia during 20-25 January 2016. The planetary- and synoptic-scale feature of the event is investigated quantitatively using the isentropic cold ...
    • Cold nuclear fusion theories. Exploration of exotic hydrogen states 

      Armelius, Joel Simion (Master thesis, 2018-05-10)
      Nuclear fusion technologies hold the potential to revolutionize the way we produce energy on earth. It is an opportunity to lift our current dependency on external factors such as weather and fossil reserves while producing ...
    • Combined influence of oceanic and atmospheric circulations on Greenland sea ice concentration 

      Chatterjee, Sourav; Raj, Roshin Pappukutty; Bertino, Laurent; Mernild, Jacob Sebastian Haugaard; Subeesh, Meethale P.; Murukesh, Nuncio; Ravichandran, Muthalagu (Journal article; Peer reviewed, 2021)
      The amount and spatial extent of Greenland Sea (GS) ice are primarily controlled by the sea ice export across the Fram Strait (FS) and by local seasonal sea ice formation, melting, and sea ice dynamics. In this study, using ...
    • A combined stokes drift profile under swell and wind sea 

      Breivik, Øyvind; Christensen, Kai Håkon (Journal article; Peer reviewed, 2020)
      A combined directional Stokes drift profile for swell and wind sea is presented. The profile can be used to calculate the shear under crossing seas and as such is relevant for Langmuir turbulence and Stokes–Coriolis forcing, ...
    • The COMBLE Campaign: A Study of Marine Boundary Layer Clouds in Arctic Cold-Air Outbreaks 

      Geerts, Bart; Giangrande, Scott E.; McFarquhar, Greg M.; Xue, Lulin; Abel, Steven J.; Comstock, Jennifer M.; Crewell, Susanne; DeMott, Paul J.; Ebell, Kerstin; Field, Paul; Hill, Thomas C. J.; Hunzinger, Alexis; Jensen, Michael P.; Johnson, Karen L.; Juliano, Timothy W.; Kollias, Pavlos; Kosovic, Branko; Lackner, Christian; Luke, Ed; Lüpkes, Christof; Matthews, Alyssa A.; Neggers, Roel; Ovchinnikov, Mikhail; Powers, Heath; Shupe, Matthew D.; Spengler, Thomas; Swanson, Benjamin E.; Tjernström, Michael; Theisen, Adam K.; Wales, Nathan A.; Wang, Yonggang; Wendisch, Manfred; Wu, Peng (Journal article; Peer reviewed, 2022)
      One of the most intense air mass transformations on Earth happens when cold air flows from frozen surfaces to much warmer open water in cold-air outbreaks (CAOs), a process captured beautifully in satellite imagery. Despite ...
    • Comparison between precipitation estimates of ground-based weather radar composites and GPM’s DPR rainfall product over Germany 

      Pejcic, Velibor; Saavedra Garfias, Pablo; Mühlbauer, Kai; Trömel, Silke; Simmer, Clemens (Journal article; Peer reviewed, 2020)
      We compare more than three years (between 2014 and 2018) of precipitation estimates over Germany from the Dual-frequency Precipitation Radar (DPR) operating on the core satellite of the Global Precipitation Mission (GPM) ...
    • 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. (Peer reviewed; Journal article, 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 ...
    • A comparison of Langmuir turbulence parameterizations and key wave effects in a numerical model of the North Atlantic and Arctic Oceans 

      Ali, Alfatih; Christensen, Kai Håkon; Breivik, Øyvind; Bertino, Laurent; Malila, Mika Petteri; Raj, Roshin Pappukutty; Chassignet, Eric P.; Bakhoday Paskyabi, Mostafa (Peer reviewed; Journal article, 2019)
      Five different parameterizations of Langmuir turbulence (LT) effect are investigated in a realistic model of the North Atlantic and Arctic using realistic wave forcing from a global wave hindcast. The parameterizations ...
    • A Comparison of LiDAR and Radiosonde Wind Measurements 

      Kumer, Valerie-Marie; Reuder, Joachim; Furevik, Birgitte Rugaard (Peer reviewed; Journal article, 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 ...
    • Comparison of wind speed and wave height trends from twentieth-century models and satellite altimeters 

      Meucci, Alberto; Young, Ian R.; Aarnes, Ole Johan; Breivik, Øyvind (Journal article; Peer reviewed, 2020)
      The trends in marine 10-m wind speed U10 and significant wave height Hs found in two century-long reanalyses are compared against a model-only integration. Reanalyses show spurious trends due to the assimilation of an ...
    • Complementing Scientific Monsoon Definitions with Social Perception in Bangladesh 

      Reeve, Mathew Alexander; Syed, Mohammed Abu; Spengler, Thomas; Spinney, Jennifer A.; Hossain, Rumana (Peer reviewed; Journal article, 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 ...
    • Connecting ocean heat transport changes from the mid-latitudes to the Arctic Ocean 

      Nummelin, Aleksi; Li, Camille; Hezel, Paul (Peer reviewed; Journal article, 2017-02)
      Under greenhouse warming, climate models simulate a weakening of the Atlantic Meridional Overturning Circulation and the associated ocean heat transport at midlatitudes but an increase in the ocean heat transport to the ...
    • Connecting the drops: Exploring precipitation changes from a process and weather perspective 

      Konstali, Kjersti (Doctoral thesis, 2024-03-22)
      Nedbør er kilden til en av de viktigste ressursene for mennesker: ferskvann. På den andre siden kan ekstremnedbør utgjøre en trussel i form av flom og skred. Det er derfor avgjørende å fastslå hvordan nedbøren har forandret ...
    • The connection between the Southern Annular Mode and a feature-based perspective on Southern Hemisphere mid-latitude winter variability 

      Spensberger, Clemens; Reeder, Michael John; Spengler, Thomas; Patterson, Matthew (Journal article; Peer reviewed, 2020)
      This article provides a reconciling perspective on the two main, but contradictory, interpretations of the southern annular mode (SAM). SAM was originally thought to characterize meridional shifts in the storm track across ...
    • Connectivity among subpopulations of Norwegian Coastal cod. Impacts of physical-biological factors during egg stages. 

      Myksvoll, Mari Skuggedal (Doctoral thesis, 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 eggs and ...
    • Consequences of future increased Arctic runoff on Arctic Ocean stratification, circulation, and sea ice cover 

      Nummelin, Aleksi; Ilicak, Mehmet; Li, Camille; Smedsrud, Lars Henrik (Peer reviewed; Journal article, 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 ...
    • Constraining CMIP6 Projections of an Ice-Free Arctic Using a Weighting Scheme 

      Zhao, Jiazhen; He, Shengping; Wang, Huijun; Li, Fei (Journal article; Peer reviewed, 2022)
      Employing a model democracy in which each model is equally weighted may lead to a poor estimation of the true uncertainty in climate projections from phase 6 of the Coupled Model Intercomparison Project (CMIP6). The ...
    • Constraining energetic slope currents through assimilation of high-frequency radar observations 

      Sperrevik, Ann Kristin; Christensen, Kai Håkon; Röhrs, Johannes (Peer reviewed; Journal article, 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, ...
    • Constraining the exchange through the strait of Bab el Mandab 

      Satti, Samah Serelkhatem Abdelkareem (Master thesis, 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 ...
    • Constraining the oceanic uptake and fluxes of greenhouse gases by building an ocean network of certified stations: The ocean component of the Integrated Carbon Observation System, ICOS-Oceans 

      Steinhoff, Tobias; Gkritzalis, Thanos; Lauvset, Siv Kari; Jones, Stephen Daniel; Schuster, Ute; Olsen, Are; Becker, Meike; Bozzano, Roberto; Brunetti, Fabio; Cantoni, Carolina; Cardin, Vanessa; Diverrès, Denis; Fiedler, Björn; Fransson, Agneta; Giani, Michele; Hartman, Sue; Hoppema, Mario; Jeansson, Emil; Johannessen, Truls; Kitidis, Vassilis; Körtzinger, Arne; Landa, Camilla Stegen; Lefèvre, Nathalie; Luchetta, Anna; Naudts, Lieven; Nightingale, Philip D.; Omar, Abdirahman; Pensieri, Sara; Pfeil, Benjamin; Castano Primo, Rocio; Rehder, Gregor; Rutgersson, Anna; Sanders, Richard; Schewe, Ingo; Siena, Giuseppe; Skjelvan, Ingunn; Soltwedel, Thomas; van Heuven, Steven; Watson, Andrew (Peer reviewed; Journal article, 2019)
      The European Research Infrastructure Consortium “Integrated Carbon Observation System” (ICOS) aims at delivering high quality greenhouse gas (GHG) observations and derived data products (e.g., regional GHG-flux maps) for ...