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The Cryosphere An interactive open-access journal of the European Geosciences Union
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Volume 12, issue 4
The Cryosphere, 12, 1387–1400, 2018
https://doi.org/10.5194/tc-12-1387-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
The Cryosphere, 12, 1387–1400, 2018
https://doi.org/10.5194/tc-12-1387-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 17 Apr 2018

Research article | 17 Apr 2018

Grounding line migration through the calving season at Jakobshavn Isbræ, Greenland, observed with terrestrial radar interferometry

Surui Xie et al.
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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR by Surui Xie on behalf of the Authors (03 Mar 2018)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (12 Mar 2018) by Olaf Eisen
AR by Surui Xie on behalf of the Authors (17 Mar 2018)  Author's response    Manuscript
ED: Publish as is (27 Mar 2018) by Olaf Eisen
Publications Copernicus
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Short summary
Time-varying velocity and topography of the terminus of Jakobshavn Isbræ were observed with a terrestrial radar interferometer in three summer campaigns (2012, 2015, 2016). Surface elevation and tidal responses of ice speed suggest a narrow floating zone in early summer, while in late summer the entire glacier is likely grounded. We hypothesize that Jakobshavn Isbræ advances a few km in winter to form a floating zone but loses this floating portion in the subsequent summer through calving.
Time-varying velocity and topography of the terminus of Jakobshavn Isbræ were observed with a...
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