Articles | Volume 16, issue 5
https://doi.org/10.5194/tc-16-2051-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-16-2051-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
30 May 2022
Research article |
| 30 May 2022
| 30 May 2022
Geomorphology and shallow sub-sea-floor structures underneath the Ekström Ice Shelf, Antarctica
Astrid Oetting
Geosciences, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
now at: Institut für Planetologie, Westfälische-Wilhelms Universität Münster, Münster, Germany
Geosciences, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
now at: School of Earth and Environment, University of Leeds, Leeds, UK
Jan Erik Arndt
Geosciences, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
now at: Universidad de Concepción, Concepción, Chile
Boris Dorschel
Geosciences, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Reinhard Drews
Department of Geoscience, University of Tübingen, Tübingen, Germany
Todd A. Ehlers
Department of Geoscience, University of Tübingen, Tübingen, Germany
Christoph Gaedicke
BGR, Federal Institute for Geoscience and Natural Resources, Hanover, Germany
Coen Hofstede
Geosciences, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Johann P. Klages
Geosciences, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Gerhard Kuhn
Geosciences, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Astrid Lambrecht
Geodesy and Glaciology, Bavarian Academy of Science and Humanities, Munich, Germany
Andreas Läufer
BGR, Federal Institute for Geoscience and Natural Resources, Hanover, Germany
Christoph Mayer
Geodesy and Glaciology, Bavarian Academy of Science and Humanities, Munich, Germany
Ralf Tiedemann
Geosciences, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Department of Geoscience, University of Bremen, Bremen, Germany
Frank Wilhelms
Geosciences, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Department of Geoscience, University of Göttingen, Göttingen, Germany
Olaf Eisen
Geosciences, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Department of Geoscience, University of Bremen, Bremen, Germany
Data sets
Sea floor bathymetry under Ekström Ice Shelf, Antarctica, from a compilation of seismic vibroseis data Emma Clare Smith, Gerhard Kuhn, Christoph Gaedicke, Reinhard Drews, Todd A. Ehlers, Dieter Franke, Coen Matthij Hofstede, Astrid Lambrecht, Andreas Läufer, Christoph Mayer, Ralf Tiedemann, and Olaf Eisen https://doi.org/10.1594/PANGAEA.907951
Sea floor depth under Ekström Ice Shelf, Antarctica, from seismic vibroseis surveys 2010-2018 Emma Clare Smith, Gerhard Kuhn, Christoph Gaedicke, Reinhard Drews, Todd A. Ehlers, Dieter Franke, Coen Matthij Hofstede, Astrid Lambrecht, Andreas Läufer, Christoph Mayer, Ralf Tiedemann, and Olaf Eisen https://doi.org/10.1594/PANGAEA.931928
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.
This study combines a variety of geophysical measurements in front of and beneath the Ekström...
