Articles | Volume 11, issue 4
https://doi.org/10.5194/tc-11-1745-2017
https://doi.org/10.5194/tc-11-1745-2017
Research article
 | 
26 Jul 2017
Research article |  | 26 Jul 2017

Ice-shelf damming in the glacial Arctic Ocean: dynamical regimes of a basin-covering kilometre-thick ice shelf

Johan Nilsson, Martin Jakobsson, Chris Borstad, Nina Kirchner, Göran Björk, Raymond T. Pierrehumbert, and Christian Stranne

Related authors

Basal melt rates and ocean circulation under the Ryder Glacier ice tongue and their response to climate warming: a high-resolution modelling study
Jonathan Wiskandt, Inga Monika Koszalka, and Johan Nilsson
The Cryosphere, 17, 2755–2777, https://doi.org/10.5194/tc-17-2755-2023,https://doi.org/10.5194/tc-17-2755-2023, 2023
Short summary
Hydraulic suppression of basal glacier melt in sill fjords
Johan Nilsson, Eef van Dongen, Martin Jakobsson, Matt O'Regan, and Christian Stranne
The Cryosphere, 17, 2455–2476, https://doi.org/10.5194/tc-17-2455-2023,https://doi.org/10.5194/tc-17-2455-2023, 2023
Short summary
The Holocene dynamics of Ryder Glacier and ice tongue in north Greenland
Matt O'Regan, Thomas M. Cronin, Brendan Reilly, Aage Kristian Olsen Alstrup, Laura Gemery, Anna Golub, Larry A. Mayer, Mathieu Morlighem, Matthias Moros, Ole L. Munk, Johan Nilsson, Christof Pearce, Henrieka Detlef, Christian Stranne, Flor Vermassen, Gabriel West, and Martin Jakobsson
The Cryosphere, 15, 4073–4097, https://doi.org/10.5194/tc-15-4073-2021,https://doi.org/10.5194/tc-15-4073-2021, 2021
Short summary
Mechanisms of decadal changes in sea surface height and heat content in the eastern Nordic Seas
Sara Broomé, Léon Chafik, and Johan Nilsson
Ocean Sci., 16, 715–728, https://doi.org/10.5194/os-16-715-2020,https://doi.org/10.5194/os-16-715-2020, 2020
Short summary
Variable C∕P composition of organic production and its effect on ocean carbon storage in glacial-like model simulations
Malin Ödalen, Jonas Nycander, Andy Ridgwell, Kevin I. C. Oliver, Carlye D. Peterson, and Johan Nilsson
Biogeosciences, 17, 2219–2244, https://doi.org/10.5194/bg-17-2219-2020,https://doi.org/10.5194/bg-17-2219-2020, 2020
Short summary

Related subject area

Paleo-Glaciology (including Former Ice Reconstructions)
Brief communication: Identification of 140,000-year-old blue ice in Grove Mountains, East Antarctica, by krypton-81 dating
Zhengyi Hu, Wei Jiang, Yuzhen Yan, Yan Huang, Xueyuan Tang, Lin Li, Florian Ritterbusch, Guo-Min Yang, Zheng-Tian Lu, and Guitao Shi
EGUsphere, https://doi.org/10.5194/egusphere-2023-2754,https://doi.org/10.5194/egusphere-2023-2754, 2024
Short summary
Antarctic permafrost processes and antiphase dynamics of cold-based glaciers in the McMurdo Dry Valleys inferred from 10Be and 26Al cosmogenic nuclides
Jacob T. H. Anderson, Toshiyuki Fujioka, David Fink, Alan J. Hidy, Gary S. Wilson, Klaus Wilcken, Andrey Abramov, and Nikita Demidov
The Cryosphere, 17, 4917–4936, https://doi.org/10.5194/tc-17-4917-2023,https://doi.org/10.5194/tc-17-4917-2023, 2023
Short summary
Late Holocene glacier and climate fluctuations in the Mackenzie and Selwyn mountain ranges, northwestern Canada
Adam C. Hawkins, Brian Menounos, Brent M. Goehring, Gerald Osborn, Ben M. Pelto, Christopher M. Darvill, and Joerg M. Schaefer
The Cryosphere, 17, 4381–4397, https://doi.org/10.5194/tc-17-4381-2023,https://doi.org/10.5194/tc-17-4381-2023, 2023
Short summary
The influence of glacial landscape evolution on Scandinavian Ice Sheet dynamics and dimensions
Gustav Jungdal-Olesen, Vivi Kathrine Pedersen, Jane Lund Andersen, and Andreas Born
EGUsphere, https://doi.org/10.5194/egusphere-2023-2207,https://doi.org/10.5194/egusphere-2023-2207, 2023
Short summary
Millennial-scale fluctuations of palaeo-ice margin at the southern fringe of the last Fennoscandian Ice Sheet
Karol Tylmann, Wojciech Wysota, Vincent Rinterknecht, Piotr Moska, Aleksandra Bielicka-Giełdoń, and the ASTER Team
The Cryosphere Discuss., https://doi.org/10.5194/tc-2023-117,https://doi.org/10.5194/tc-2023-117, 2023
Revised manuscript accepted for TC
Short summary

Cited articles

Alley, R. B., Clark, P. U., Huybrechts, P.,and Joughin, I.: Ice-sheet and sea-level changes, Science, 310, 456–460, 2005.
Amundson, J. M., Fahnestock, M., Truffer, M., Brown, J., Lüthi, M. P., andMotyka, R. J.: Ice mélange dynamics and implications for terminus stability, Jakobshavn Isbræ, Greenland, J. Geophys. Res., 115, F01005, https://doi.org/10.1029/2009JF001405, 2010.
Antoniades, D., Francus, P., Pienitz, R., St-Onge, G., and Vincent, W. F.: Holocene dynamics of the Arctic's largest ice shelf, P. Natl. Acad. Sci. USA, 108, 18899–18904, 2011.
Arndt, J. E., Niessen, F., Jokat, W., and Dorschel, B.: Deep water paleo-iceberg scouring on top of Hovgaard Ridge–Arctic Ocean, Geophys. Res. Lett., 41, 5068–5074, 2014.
Ashkenazy, Y., Gildor, H., Losch, M., Macdonald, F. A., Schrag, D. P., and Tziperman, E.: Dynamics of a Snowball Earth ocean, Nature, 495, 90–93, 2013.
Download
Short summary
Recent data suggest that a 1 km thick ice shelf extended over the glacial Arctic Ocean during MIS 6, about 140 000 years ago. Here, we theoretically analyse the development and equilibrium features of such an ice shelf. The ice shelf was effectively dammed by the Fram Strait and the mean ice-shelf thickness was controlled primarily by the horizontally integrated mass balance. Our results can aid in resolving some outstanding questions of the state of the glacial Arctic Ocean.