The Cryosphere
The Cryosphere
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Articles | Volume 18, issue 7
Articles | Volume 18, issue 7
https://doi.org/10.5194/tc-18-3067-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-18-3067-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 7
Research article
 | 
04 Jul 2024
Research article |  | 04 Jul 2024

Surface dynamics and history of the calving cycle of Astrolabe Glacier (Adélie Coast, Antarctica) derived from satellite imagery

Floriane Provost, Dimitri Zigone, Emmanuel Le Meur, Jean-Philippe Malet, and Clément Hibert

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Cited articles

Alley, K. E., Scambos, T. A., Anderson, R. S., Rajaram, H., Pope, A., and Haran, T. M.: Continent-wide estimates of Antarctic strain rates from Landsat 8-derived velocity grids, J. Glaciol., 64, 321–332, https://doi.org/10.1017/jog.2018.23, 2018. a, b
Alley, R., Cuffey, K., Bassis, J., Alley, K., Wang, S., Parizek, B., Anandakrishnan, S., Christianson, K., and DeConto, R.: Iceberg Calving: Regimes and Transitions, Annu. Rev. Earth Pl. Sc., 51, 189–215, https://doi.org/10.1146/annurev-earth-032320-110916, 2023. a, b, c, d, e, f
Altena, B., Haga, O. N., Nuth, C., and Kääb, A.: Monitoring Sub-Weekly Evolution of Surface Velocity and Elevation for a High-Latitude Surging Glacier Using Sentinel-2, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W13, 1723–1727, https://doi.org/10.5194/isprs-archives-XLII-2-W13-1723-2019, 2019. a
Archives Polaires Françaises: Altimétrique du glacier de l'Astrolabe, Archives Polaires Françaises [data set], https://archives-polaires.fr/idurl/1/14865 last access: October 2023. a
Åström, J. A. and Benn, D. I.: Effective rheology across the fragmentation transition for sea ice and ice shelves, Geophys. Res. Lett., 46, 13099–13106, https://doi.org/10.1029/2019GL084896, 2019. a, b
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The recent calving of Astrolabe Glacier in November 2021 presents an opportunity to better understand the processes leading to ice fracturing. Optical-satellite imagery is used to retrieve the calving cycle of the glacier ice tongue and to measure the ice velocity and strain rates in order to document fracture evolution. We observed that the presence of sea ice for consecutive years has favoured the glacier extension but failed to inhibit the growth of fractures that accelerated in June 2021.
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