• 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 ...
    • Disentangling the impact of Atlantic Niño on sea-air CO2 flux 

      Koseki, Shunya; Tjiputra, Jerry; Fransner, Sara Filippa Krusmynta; Crespo, Lander Rodriguez; Keenlyside, Noel Sebastian (Journal article; Peer reviewed, 2023)
      Atlantic Niño is a major tropical interannual climate variability mode of the sea surface temperature (SST) that occurs during boreal summer and shares many similarities with the tropical Pacific El Niño. Although the ...
    • Future strengthening of the Nordic Seas overturning circulation 

      Årthun, Marius; Asbjørnsen, Helene; Chafik, Léon; Johnson, Helen L.; Våge, Kjetil (Journal article; Peer reviewed, 2023)
      The overturning circulation in the Nordic Seas involves the transformation of warm Atlantic waters into cold, dense overflows. These overflow waters return to the North Atlantic and form the headwaters to the deep limb of ...
    • 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 ...
    • Irminger Sea deep convection injects oxygen and anthropogenic carbon to the ocean interior 

      Fröb, Friederike; Olsen, A.; Våge, K.; Moore, G.W.K; Yashayaev, I. (Peer reviewed; Journal article, 2016-10-27)
      Deep convection in the subpolar North Atlantic ventilates the ocean for atmospheric gases through the formation of deep water masses. Variability in the intensity of deep convection is believed to have caused large variations ...
    • Observational evidence for on-shelf heat transport driven by dense water export in the Weddell Sea 

      Darelius, Elin Maria K.; Daae, Kjersti; Dundas, Vår Iren Hjorth; Fer, Ilker; Hellmer, Hartmut H.; Janout, Markus; Nicholls, Keith W.; Sallée, Jean-Bapiste; Østerhus, Svein (Journal article; Peer reviewed, 2023)
      The transport of oceanic heat towards the Antarctic continental margin is central to the mass balance of the Antarctic Ice Sheet. Recent modeling efforts challenge our view on where and how the on-shelf heat flux occurs, ...
    • Ocean convection linked to the recent ice edge retreat along east Greenland 

      Våge, Kjetil; Papritz, Lukas; Håvik, Lisbeth; Spall, Michael A.; Moore, George William Kent (Peer reviewed; Journal article, 2018-03-29)
      Warm subtropical-origin Atlantic water flows northward across the Greenland-Scotland Ridge into the Nordic Seas, where it relinquishes heat to the atmosphere and gradually transforms into dense Atlantic-origin water. ...
    • Resolving the controls of water vapour isotopes in the Atlantic sector 

      Bonne, Jean-Louis; Behrens, Melanie K.; Meyer, Hanno; Kipfstuhl, Sepp; Rabe, Benjamin; Schonicke, Lutz; Steen-Larsen, Hans Christian; Werner, Martin (Peer reviewed; Journal article, 2019-04-09)
      Stable water isotopes are employed as hydrological tracers to quantify the diverse implications of atmospheric moisture for climate. They are widely used as proxies for studying past climate changes, e.g., in isotope records ...
    • Rise and fall of sea ice production in the Arctic Ocean’s ice factories 

      Cornish, S.B.; Johnson, H.L.; Mallett, R.D.C.; Dörr, Jakob Simon; Kostov, Y.; Richards, A.E. (Journal article; Peer reviewed, 2022)
      The volume, extent and age of Arctic sea ice is in decline, yet winter sea ice production appears to have been increasing, despite Arctic warming being most intense during winter. Previous work suggests that further warming ...
    • Skilful decadal-scale prediction of fish habitat and distribution shifts 

      Payne, Mark R.; Danabasoglu, Gokhan; Keenlyside, Noel Sebastian; Matei, Daniela; Miesner, Anna K.; Yang, Shuting; Yeager, Stephen G. (Journal article; Peer reviewed, 2022)
      Many fish and marine organisms are responding to our planet’s changing climate by shifting their distribution. Such shifts can drive international conflicts and are highly problematic for the communities and businesses ...
    • Skillful prediction of northern climate provided by the ocean 

      Årthun, Marius; Eldevik, Tor; Viste, Ellen; Drange, Helge; Furevik, Tore; Johnson, Helen L.; Keenlyside, Noel (Peer reviewed; Journal article, 2017-06-20)
      It is commonly understood that a potential for skillful climate prediction resides in the ocean. It nevertheless remains unresolved to what extent variable ocean heat is imprinted on the atmosphere to realize its predictive ...
    • Sources and upstream pathways of the densest overflow water in the Nordic Seas 

      Huang, Jie; Pickart, Robert S.; Huang, Rui Xin; Lin, Peigen; Brakstad, Ailin; Xu, Fanghua (Journal article; Peer reviewed, 2020)
      Overflow water from the Nordic Seas comprises the deepest limb of the Atlantic Meridional Overturning Circulation, yet questions remain as to where it is ventilated and how it reaches the Greenland-Scotland Ridge. Here we ...
    • Storms drive outgassing of CO2 in the subpolar Southern Ocean 

      Nicholson, S.-A.; Whitt, D. B.; Fer, Ilker; du Plessis, M; Lebéhot, A. D.; Swart, S.; Sutton, A. J.; Monteiro, M. S. (Journal article; Peer reviewed, 2022)
      The subpolar Southern Ocean is a critical region where CO2 outgassing influences the global mean air-sea CO2 flux (FCO2). However, the processes controlling the outgassing remain elusive. We show, using a multi-glider ...
    • Wind-driven upwelling of iron sustains dense blooms and food webs in the eastern Weddell Gyre 

      Moreau, Sebastian; Hattermann, Tore; de Steur, Laura; Kauko, Hanna Maria; Ahonen, Heidi; Ardelan, Murat van; Assmy, Philipp; Chierici, Melissa; Descamps, Sebastien; Dinter, Tilman; Falkenhaug, Tone; Fransson, Agneta; Grønningsæter, Eirik; Hallfredsson, Elvar Halldor; Huhn, Oliver; Lebrun, Anais; Lowther, Andrew; Lübcker, Nico; Monteiro, Pedro; Peeken, Ilka; Roychoudhury, Alakendra; Różańska, Magdalena; Ryan-Keogh, Thomas; Sanchez Puerto, Nicolas; Singh, Asmita; Simonsen, Jan Henrik; Steiger, Nadine; Thomalla, Sandy J.; van Tonder, Andre; Wiktor, Josef M; Steen, Harald (Journal article; Peer reviewed, 2023)
      The Southern Ocean is a major sink of anthropogenic CO2 and an important foraging area for top trophic level consumers. However, iron limitation sets an upper limit to primary productivity. Here we report on a considerably ...