Blar i Bergen Open Research Archive på forfatter "Steiger, Nadine"
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The dynamics of a barotropic current impinging on an ice front
Steiger, Nadine; Darelius, Elin Maria K.; Kimura, S; Patmore, Ryan Declan; Wåhlin, A. K. (Journal article; Peer reviewed, 2022)The vertical front of ice shelves represents a topographic barrier for barotropic currents that transport a considerable amount of heat toward the ice shelves. The blocking effect of the ice front on barotropic currents ... -
Hydrography, circulation, and response to atmospheric forcing in the vicinity of the central Getz Ice Shelf, Amundsen Sea, Antarctica
Dundas, Vår Iren Hjorth; Darelius, Elin Maria K.; Daae, Kjersti; Steiger, Nadine; Nakayama, Yoshihiro; Kim, Tae-Wan (Journal article; Peer reviewed, 2022)Ice shelves in the Amundsen Sea are thinning rapidly as ocean currents bring warm water into the cavities beneath the floating ice. Although the reported melt rates for the Getz Ice Shelf are comparatively low for the ... -
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 ... -
Intermittent Reduction in Ocean Heat Transport Into the Getz Ice Shelf Cavity During Strong Wind Events
Steiger, Nadine; Darelius, Elin; Wåhlin, Anna; Assmann, Karen Margarete (Journal article; Peer reviewed, 2021)The flow of warm water toward the western Getz Ice Shelf along the Siple Trough, West Antarctica, is intermittently disrupted during short events of Winter Water deepening. Here we show, using mooring records, that these ... -
Non-linear retreat of Jakobshavn Isbræ since the Little Ice Age controlled by geometry
Steiger, Nadine; Nisancioglu, Kerim H.; Åkesson, Henning; Fleurian, Basile de; Nick, Faezeh M. (Journal article, 2017-09)Rapid acceleration and retreat of Greenland's marine-terminating glaciers during the last two decades have initiated questions on the trigger and processes governing observed changes. Destabilization of these glaciers ... -
The sensitivity of marine-terminating glaciers to model parameters and geometry
Steiger, Nadine (Master thesis, 2016-06-01)Greenland outlet glaciers are among the largest contributors to global sea level rise. With high velocities and calving rates, they discharge large amounts of glacial ice into the ocean. During the last two decades, the ... -
Simulated retreat of Jakobshavn Isbræ since the Little Ice Age controlled by geometry
Steiger, Nadine; Nisancioglu, Kerim Hestnes; Åkesson, Henning; de Fleurian, Basile; Nick, Faezeh M. (Peer reviewed; Journal article, 2018-07-12)Rapid retreat of Greenland's marine-terminating glaciers coincides with regional warming trends, which have broadly been used to explain these rapid changes. However, outlet glaciers within similar climate regimes ... -
Simulated retreat of Jakobshavn Isbræ since the Little Ice Age controlled by geometry
Steiger, Nadine; Nisancioglu, Kerim Hestnes; Åkesson, Henning; de Fleurian, Basile; Nick, Faezeh M. (Peer reviewed; Journal article, 2018-07-12)Rapid retreat of Greenland's marine-terminating glaciers coincides with regional warming trends, which have broadly been used to explain these rapid changes. However, outlet glaciers within similar climate regimes experience ... -
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 ...