Recent Submissions

  • The ice front as a topographic barrier for ocean heat transport 

    Steiger, Nadine (Doctoral thesis, 2021-06-28)
    Antarctic ice shelves are the link between the Southern Ocean and the Antarctic Ice Sheet. The floating ice shelves restrain the seaward flow of the grounded ice, which is balanced by iceberg calving and ocean-induced basal ...
  • An experimental study on the effects of winglets on the tip vortex interaction in the near wake of a model wind turbine 

    Bartl, Jan; Mühle, Franz Volker; Hansen, Thomas; Adaramola, Muyiwa S.; Sætran, Lars Roar (Journal article; Peer reviewed, 2020)
    An experimental study of the near wake up to four rotor diameters behind a model wind turbine rotor with two different wing tip configurations is performed. A straight-cut wing tip and a downstream-facing winglet shape are ...
  • The Role of the Stratosphere in Subseasonal to Seasonal Prediction: 1. Predictability of the Stratosphere 

    Domeisen, Daniela; Butler, Amy; Charlton-Perez, Andrew; Ayarzaguena, Blanca; Baldwin, Mark; Dunn-Sigouin, Etienne; Furtado, Jason; Garfinkel, Chaim; Hitchcock, Peter; Karpechko, Alexey; Kim, Hera; Knight, Jeff; Lang, Andrea; Lim, Eun-Pa; Marshall, Andrew; Roff, Greg; Schwartz, Chen; Simpson, Isla; Son, Seok-Woo; Taguchi, Masakazu (Journal article; Peer reviewed, 2019-11-18)
    The stratosphere has been identified as an important source of predictability for a range of processes on subseasonal to seasonal (S2S) time scales. Knowledge about S2S predictability within the stratosphere is however ...
  • Dynamics of anomalous stratospheric eddy heat flux events in an idealized model 

    Dunn-Sigouin, Etienne; Shaw, Tiffany (Journal article; Peer reviewed, 2020-05-28)
    Extreme stratospheric eddy and sudden stratospheric warming (SSW) events both involve anomalous stratospheric eddy heat flux. The cause of the anomaly has been hypothesized to be due to tropospheric or stratospheric dynamics. ...
  • Mass balance of the Greenland Ice Sheet from 1992 to 2018 

    Shepherd, Andrew; Ivins, Erik; Rignot, Eric; Smith, Ben; Van Den Broeke, Michiel; Velicogna, Isabella; Whitehouse, Pippa; Briggs, Kate; Joughin, Ian; Krinner, Gerhard; Nowicki, Sophie; Payne, Tony; Scambos, Ted; Schlegel, Nicole; Geruo, A; Agosta, Cécile; Ahlstrøm, Andreas; Babonis, Greg; Barletta, Valentina; Bjørk, Anders A.; Blazquez, Alejandro; Bonin, Jennifer; Colgan, William; Csatho, Beata; Cullather, Richard; Engdahl, Marcus E.; Felikson, Denis; Fettweis, Xavier; Forsberg, Rene; Hogg, Anna E.; Hubert, Gallee; Gardner, Alex; Gilbert, Lin; Gourmelen, Noel; Groh, Andreas; Gunter, Brian; Hanna, Edward; Harig, Christopher; Helm, Veit; Horvath, Alexander; Horwath, Martin; Khan, Shfaqat; Kjeldsen, Kristian K.; Hannes, Konrad; Langen, Peter L.; Lecavalier, Benoit; Loomis, Bryant; Luthcke, Scott; McMillan, Malcolm; Melini, Daniele; Mernild, Jacob Sebastian Haugaard; Mohajerani, Yara; Moore, Philip; Mottam, Ruth; Mouginot, Jérémie; Moyano, Gorka; Muir, Alan; Nagler, Thomas; Nield, Grace; Nilsson, Johan; Noel, Brice; Otosaka, Ines; Pattle, Mark E.; Peltier, Richard W.; Pie, Nadège; Rietbroek, Roelof; Rott, Helmut; Sørensen, Louise Sandberg; Sasgen, Ingo; Save, Himanshu; Scheuchl, Bernd; Schrama, Ernst; Schröder, Ludwig; Seo, Ki-Weon; Simonsen, Sebastian B.; Slater, Thomas; Spada, Giorgio; Sutterley, Tyler; Talpe, Matthieu; Tarasov, Lev; Willem, Jan van de Berg; Van Der Wal, Wouter; Van Wessem, Melchior; Vishwakarma, Barmha Dutt; Wiese, David; Wilton, David; Wagner, Thomas; Wouters, Bert; Wuite, Jan (Journal article; Peer reviewed, 2019-12-10)
    The Greenland Ice Sheet has been a major contributor to global sea-level rise in recent decades1,2, and it is expected to continue to be so3. Although increases in glacier flow4,5,6 and surface melting7,8,9 have been driven ...
  • Direct and Indirect Effects of Surface Fluxes on Moist Baroclinic Development in an Idealized Framework 

    Haualand, Kristine Flacké; Spengler, Thomas (Journal article; Peer reviewed, 2020-09)
    The convoluted role of surface sensible and latent heat fluxes on moist baroclinic development demands a better understanding to disentangle their local and remote effects. Including diabatic effects in the Eady model, the ...
  • Influence of Diabatic Effects and Tropopause Structure on Baroclinic Development 

    Haualand, Kristine Flacké (Doctoral thesis, 2021-06-10)
    Midlatitude cyclones play an important role in midlatitude weather and global climate. While baroclinic instability is the dominant mechanism for their intensification, midlatitude cyclone development is also influenced ...
  • Relating model bias and prediction skill in the equatorial Atlantic 

    Counillon, Francois; Keenlyside, Noel; Toniazzo, Thomas; Koseki, Shunya; Demissie, Teferi Dejene; Bethke, Ingo; Wang, Yiguo (Journal article; Peer reviewed, 2021)
    We investigate the impact of large climatological biases in the tropical Atlantic on reanalysis and seasonal prediction performance using the Norwegian Climate Prediction Model (NorCPM) in a standard and an anomaly coupled ...
  • Diabatic heating governs the seasonality of the Atlantic Niño 

    Nnamchi, Hyacinth C; Latif, Mojib; Keenlyside, Noel; Kjellsson, Joakim; Richter, Ingo (Journal article; Peer reviewed, 2021)
    The Atlantic Niño is the leading mode of interannual sea-surface temperature (SST) variability in the equatorial Atlantic and assumed to be largely governed by coupled ocean-atmosphere dynamics described by the Bjerknes-feedback ...
  • Characterization of Wind-Sea- and Swell-Induced Wave Energy along the Norwegian Coast 

    Christakos, Konstantinos; Varlas, George; Cheliotis, Ioannis; Spyrou, Christos; Aarnes, Ole Johan; Furevik, Birgitte Rugaard (Journal article; Peer reviewed, 2020)
    The necessity to reduce CO2 emissions in combination with the rising energy demand worldwide makes the extensive use of renewable energy sources increasingly important. To that end, countries with long coastlines, such as ...
  • Cancellation of the precessional cycle in δ18O records during the Early Pleistocene 

    Morée, Anne; Sun, Tianyi; Bretones, Anaïs; Straume, Eivind Olavson; Nisancioglu, Kerim Hestnes; Gebbie, Geoffrey (Journal article; Peer reviewed, 2021)
    The dominant pacing of glacial‐interglacial cycles in deep‐ocean δ18O records changed substantially during the Mid‐Pleistocene Transition. The precessional cycle (∼23 ky) is absent during the Early Pleistocene, which we ...
  • Basin Interactions and predictability 

    Keenlyside, Noel; Kosaka, Yu; Vigaud, Nicholas; Robertson, Andrew; Wang, Yiguo; Dommenget, Dietmar; Luo, Jing-Jia; Matei, Daniela (Chapter, 2020)
  • A Satellite Era Warming Hole in the Equatorial Atlantic Ocean 

    Nnamchi, Hyacinth C; Latif, Mojib; Keenlyside, Noel; Park, Wonsun (Journal article; Peer reviewed, 2020)
    Observations during the satellite era 1979–2018 only depict small sea surface temperature (SST) trends over the Equatorial Atlantic cold tongue region in boreal summer. This lack of surface warming of the cold tongue, ...
  • Intermittency of Arctic–mid-latitude teleconnections: stratospheric pathway between autumn sea ice and the winter North Atlantic Oscillation 

    Siew, Yu Feng; Li, Camille; Sobolowski, Stefan Pieter; King, Martin Peter (Journal article; Peer reviewed, 2020)
    There is an observed relationship linking Arctic sea ice conditions in autumn to mid-latitude weather the following winter. Of interest in this study is a hypothesized stratospheric pathway whereby reduced sea ice in the ...
  • Exploring Arctic-midlatitude teleconnections using observations and numerical models 

    Siew, Yu Feng (Doctoral thesis, 2021-05-27)
    The Arctic is warming at a much faster rate than the rest of the globe, with large declines in sea ice, snow cover and permafrost over the last decades. These profound changes have been proposed to influence the midlatitude ...
  • The Iceland-Faroe Slope Jet: a conduit for dense water toward the Faroe Bank Channel overflow 

    Semper, Stefanie; Pickart, Robert S.; Våge, Kjetil; Larsen, Karin Margretha H.; Hátún, Hjálmar; Hansen, Bogi (Journal article; Peer reviewed, 2020)
    Dense water from the Nordic Seas passes through the Faroe Bank Channel and supplies the lower limb of the Atlantic Meridional Overturning Circulation, a critical component of the climate system. Yet, the upstream pathways ...
  • Meteorological conditions and cloud effects on surface radiation balance near Helheim glacier and Jakobshavn isbræ (Greenland)using ground-based observations. 

    Djoumna, G.; Mernild, Jacob Sebastian Haugaard; Holland, D.M. (Journal article; Peer reviewed, 2021)
    The surface radiation budget is an essential component of the total energy exchange between the atmosphere and the Earth’s surface. Measurements of radiative fluxes near/on ice surfaces are sparse in the polar regions, ...
  • Sea-state contributions to sea-level variability in the European Seas 

    Bonaduce, Antonio; Staneva, Joanna; Grayek, Sebastian; Bidlot, Jean-Raymond; Breivik, Øyvind (Journal article; Peer reviewed, 2020)
    The contribution of sea-state-induced processes to sea-level variability is investigated through ocean-wave coupled simulations. These experiments are performed with a high-resolution configuration of the Geestacht COAstal ...
  • Evaluation of a sub-kilometre NWP system in an Arctic fjord-valley system in winter 

    Valkonen, Teresa Maaria; Stoll, Patrick; Batrak, Yurii; Køltzow, Morten Andreas Ødegaard; Schneider, Thea Maria; Stigter, Emmy E.; Aashamar, Ola B.; Støylen, Eivind; Jonassen, Marius Opsanger (Journal article; Peer reviewed, 2020)
    Terrain challenges the prediction of near-surface atmospheric conditions, even in kilometre-scale numerical weather prediction (NWP) models. In this study, the ALADIN-HIRLAM NWP system with 0.5 km horizontal grid spacing ...
  • Evaluation of different wind fields for the investigation of the dynamic response of offshore wind turbines 

    Nybø, Astrid; Nielsen, Finn Gunnar; Reuder, Joachim; Godvik, Marte; Churchfield, Matthew J. (Journal article; Peer reviewed, 2020)
    As the size of offshore wind turbines increases, a realistic representation of the spatiotemporal distribution of the incident wind field becomes crucial for modeling the dynamic response of the turbine. The International ...

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