The Cryosphere
The Cryosphere
TC
Articles | Volume 15, issue 2
Articles | Volume 15, issue 2
https://doi.org/10.5194/tc-15-485-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-15-485-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 2
Research article
 | 
02 Feb 2021
Research article |  | 02 Feb 2021

Thinning leads to calving-style changes at Bowdoin Glacier, Greenland

Eef C. H. van Dongen, Guillaume Jouvet, Shin Sugiyama, Evgeny A. Podolskiy, Martin Funk, Douglas I. Benn, Fabian Lindner, Andreas Bauder, Julien Seguinot, Silvan Leinss, and Fabian Walter

Supplement

https://doi.org/10.5194/tc-15-485-2021-supplement

Data sets

Photo time series from Bowdoin Glacier, Greenland (2014-2019) Martin Funk, Andreas Bauder, Thomas Wyder, Eef van Dongen, and Lukas Preiswerk https://doi.org/10.3929/ethz-b-000455251

GPS measurements of glacier flow on Bowdoin Glacier, Greenland, July 2019 Martin Funk, Andreas Bauder, Guillaume Jouvet, Fabian Lindner, Eef van Dongen, Fabian Walter, and Thomas Wyder https://doi.org/10.3929/ethz-b-000455331

Mapping of the calving front of Bowdoin Glacier, Northwest Greenland, by UAV photogrammetry (2017) Eef van Dongen, Martin Funk, Andrea Walter, and Marin Kneib https://doi.org/10.3929/ethz-b-000455215

Mapping of the calving front of Bowdoin Glacier, Northwest Greenland, by UAV photogrammetry (2019) Eef van Dongen, Guillaume Jouvet, and Fabian Walter https://doi.org/10.3929/ethz-b-000455210

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Short summary
The dynamic mass loss of tidewater glaciers is strongly linked to glacier calving. We study calving mechanisms under a thinning regime, based on 5 years of field and remote-sensing data of Bowdoin Glacier. Our data suggest that Bowdoin Glacier ungrounded recently, and its calving behaviour changed from calving due to surface crevasses to buoyancy-induced calving resulting from basal crevasses. This change may be a precursor to glacier retreat.
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