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TC | Volume 13, issue 7
The Cryosphere, 13, 1911–1923, 2019
https://doi.org/10.5194/tc-13-1911-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
The Cryosphere, 13, 1911–1923, 2019
https://doi.org/10.5194/tc-13-1911-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 15 Jul 2019

Research article | 15 Jul 2019

Submarine melt as a potential trigger of the North East Greenland Ice Stream margin retreat during Marine Isotope Stage 3

Ilaria Tabone et al.
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The Antarctic Ice Sheet response to glacial millennial-scale variability
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Discipline: Ice sheets | Subject: Greenland
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The Cryosphere, 13, 2789–2796, https://doi.org/10.5194/tc-13-2789-2019,https://doi.org/10.5194/tc-13-2789-2019, 2019
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Revised manuscript accepted for TC
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Cited articles  
Alvarez-Solas, J., Banderas, R., Robinson, A., and Montoya, M.: Ocean-driven millennial-scale variability of the Eurasian ice sheet during the last glacial period simulated with a hybrid ice-sheet-shelf model, Clim. Past, 15, 957–979, https://doi.org/10.5194/cp-15-957-2019, 2019. a, b
Anhaus, P., Smedsrud, L. H., Årthun, M., and Straneo, F.: Sensitivity of submarine melting on North East Greenland towards ocean forcing, The Cryosphere Discuss., https://doi.org/10.5194/tc-2019-35, in review, 2019. a, b
Annan, J. D. and Hargreaves, J. C.: A new global reconstruction of temperature changes at the Last Glacial Maximum, Clim. Past, 9, 367–376, https://doi.org/10.5194/cp-9-367-2013, 2013. a, b
Arndt, J. E., Jokat, W., Dorschel, B., Myklebust, R., Dowdeswell, J. A., and Evans, J.: A new bathymetry of the Northeast Greenland continental shelf: Constraints on glacial and other processes, Geochem. Geophys. Geosyst., 16, 3733–3753, 2015. a, b, c
Arndt, J. E., Jokat, W., and Dorschel, B.: The last glaciation and deglaciation of the Northeast Greenland continental shelf revealed by hydro-acoustic data, Quaternary Sci. Rev., 160, 45–56, 2017. a, b, c
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Recent reconstructions show that the North East Greenland Ice Stream (NEGIS) retreated away from its present-day position by 20–40 km during MIS-3. Atmospheric and external forcings were proposed as potential causes of this retreat, but the role of the ocean was not considered. Here, using a 3-D ice-sheet model, we suggest that oceanic warming is sufficient to induce a retreat of the NEGIS margin of many tens of kilometres during MIS-3, helping to explain this conundrum.
Recent reconstructions show that the North East Greenland Ice Stream (NEGIS) retreated away from...
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