Articles | Volume 16, issue 5
https://doi.org/10.5194/tc-16-2051-2022
https://doi.org/10.5194/tc-16-2051-2022
Research article
 | 
30 May 2022
Research article |  | 30 May 2022

Geomorphology and shallow sub-sea-floor structures underneath the Ekström Ice Shelf, Antarctica

Astrid Oetting, Emma C. Smith, Jan Erik Arndt, Boris Dorschel, Reinhard Drews, Todd A. Ehlers, Christoph Gaedicke, Coen Hofstede, Johann P. Klages, Gerhard Kuhn, Astrid Lambrecht, Andreas Läufer, Christoph Mayer, Ralf Tiedemann, Frank Wilhelms, and Olaf Eisen

Related authors

Future Retreat of Great Aletsch Glacier and Hintereisferner – application of a full-Stokes model to two valley glaciers in the European Alps
Martin Rückamp, Gong Cheng, Karlheinz Gutjahr, Marco Möller, Petri K. E. Pellikka, and Christoph Mayer
EGUsphere, https://doi.org/10.5194/egusphere-2025-3150,https://doi.org/10.5194/egusphere-2025-3150, 2025
This preprint is open for discussion and under review for The Cryosphere (TC).
Short summary
DCG-MIP: The Debris-Covered Glacier melt Model Intercomparison exPeriment
Francesca Pellicciotti, Adrià Fontrodona-Bach, David R. Rounce, Catriona L. Fyffe, Leif S. Anderson, Álvaro Ayala, Ben W. Brock, Pascal Buri, Stefan Fugger, Koji Fujita, Prateek Gantayat, Alexander R. Groos, Walter Immerzeel, Marin Kneib, Christoph Mayer, Shelley MacDonell, Michael McCarthy, James McPhee, Evan Miles, Heather Purdie, Ekaterina Rets, Akiko Sakai, Thomas E. Shaw, Jakob Steiner, Patrick Wagnon, and Alex Winter-Billington
EGUsphere, https://doi.org/10.5194/egusphere-2025-3837,https://doi.org/10.5194/egusphere-2025-3837, 2025
This preprint is open for discussion and under review for The Cryosphere (TC).
Short summary
Enhanced basal melting in winter and spring: seasonal ice–ocean interactions at the Ekström Ice Shelf, East Antarctica
Ole Zeising, Tore Hattermann, Lars Kaleschke, Sophie Berger, Olaf Boebel, Reinhard Drews, M. Reza Ershadi, Tanja Fromm, Frank Pattyn, Daniel Steinhage, and Olaf Eisen
The Cryosphere, 19, 2837–2854, https://doi.org/10.5194/tc-19-2837-2025,https://doi.org/10.5194/tc-19-2837-2025, 2025
Short summary
Spatiotemporal denudation rates of the Swabian Alb escarpment (southwestern Germany) dominated by anthropogenic impact, lithology, and base-level lowering
Mirjam Schaller, Daniel Peifer, Alexander B. Neely, Thomas Bernard, Christoph Glotzbach, Alexander R. Beer, and Todd A. Ehlers
Earth Surf. Dynam., 13, 571–591, https://doi.org/10.5194/esurf-13-571-2025,https://doi.org/10.5194/esurf-13-571-2025, 2025
Short summary
Last Glacial Maximum extent and subsequent retreat of the East Antarctic Ice Sheet from the Mac. Robertson Shelf
Janina Güntzel, Juliane Müller, Ralf Tiedemann, Gesine Mollenhauer, Lester Lembke-Jene, Estella Weigelt, Lasse Schopen, Niklas Wesch, Laura Kattein, Andrew N. Mackintosh, and Johann P. Klages
EGUsphere, https://doi.org/10.5194/egusphere-2025-2515,https://doi.org/10.5194/egusphere-2025-2515, 2025
This preprint is open for discussion and under review for The Cryosphere (TC).
Short summary

Cited articles

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung: Neumayer III and Kohnen Station in Antarctica operated by the Alfred Wegener Institute, Journal of large-scale research facilities, 2, A85, https://doi.org/10.17815/jlsrf-2-152, 2016. a
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung: Polar Research and Supply Vessel POLARSTERN Operated by the Alfred-Wegener-Institute, Journal of large-scale research facilities, 3, A119, https://doi.org/10.17815/jlsrf-3-163, 2017. a, b, c, d
Arndt, J. E. and Kuhn, G.: Profile of sediment echo sounding during POLARSTERN cruise PS96 (ANT-XXXI/2 FROSN) with links to ParaSound data files, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.860442, 2016. a
Arndt, J. E., Schenke, H. W., Jakobsson, M., Nitsche, F.-O., Buys, G., Goleby, B., Rebesco, M., Bohoyo, F., Hong, J. K., Black, J., Greku, R., Udintsev, G. B., Barrios, F., Reynoso-Peralta, W., Taisei, M., and Wigley, R.: The International Bathymetric Chart of the Southern Ocean (IBCSO) Version 1.0–A new bathymetric compilation covering circum‐Antarctic waters, Geophys. Res. Lett., 40, 3111–3117, 2013. a, b, c, d
Arndt, J. E., Hillenbrand, C.-D., Grobe, H., Kuhn, G., and Wacker, L.: Evidence for a dynamic grounding line in outer Filchner Trough, Antarctica, until the early Holocene, Geology, 45, 1035–1038, https://doi.org/10.1130/G39398.1, 2017. a, b, c
Download
Short summary
This study combines a variety of geophysical measurements in front of and beneath the Ekström Ice Shelf in order to identify and interpret geomorphological evidences of past ice sheet flow, extent and retreat. The maximal extent of grounded ice in this region was 11 km away from the continental shelf break. The thickness of palaeo-ice on the calving front around the LGM was estimated to be at least 305 to 320 m. We provide essential boundary conditions for palaeo-ice-sheet models.
Share