Articles | Volume 15, issue 4
https://doi.org/10.5194/tc-15-1881-2021
© Author(s) 2021. 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-15-1881-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Brief communication
| 
19 Apr 2021
Brief communication |
| 19 Apr 2021
| 19 Apr 2021
Brief communication: New radar constraints support presence of ice older than 1.5 Myr at Little Dome C
Physics of Ice, Climate and Earth, Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
Daniel Steinhage
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar-und Meeresforschung, Bremerhaven, Germany
Drew Taylor
Remote Sensing Center, University of Alabama, Tuscaloosa, AL, USA
Frédéric Parrenin
Institut des Géosciences de l'Environnement, University Grenoble Alpes, CNRS, IRD, IGE, Grenoble, France
Catherine Ritz
Institut des Géosciences de l'Environnement, University Grenoble Alpes, CNRS, IRD, IGE, Grenoble, France
Robert Mulvaney
British Antarctic Survey, Natural Environment Research Council, Cambridge, UK
Carlos Martín
British Antarctic Survey, Natural Environment Research Council, Cambridge, UK
Jie-Bang Yan
Remote Sensing Center, University of Alabama, Tuscaloosa, AL, USA
Charles O'Neill
Remote Sensing Center, University of Alabama, Tuscaloosa, AL, USA
Massimo Frezzotti
Department of Science, University Roma Tre, Rome, Italy
Heinrich Miller
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar-und Meeresforschung, Bremerhaven, Germany
Prasad Gogineni
Remote Sensing Center, University of Alabama, Tuscaloosa, AL, USA
Dorthe Dahl-Jensen
Physics of Ice, Climate and Earth, Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
Centre for Earth Observation Science, University of Manitoba, Winnipeg, MB, Canada
Olaf Eisen
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar-und Meeresforschung, Bremerhaven, Germany
Department of Geosciences, University of Bremen, Bremen, Germany
Data sets
VHF Radio Echo Sounding from Dome C to Little Dome C D. Lilien, D. Steinhage, D. Taylor, J.-B. Yan, C. O'Neill, H. Miller, P. Gogineni, D. Dahl-Jensen, and O. Eisen https://doi.org/10.5281/zenodo.4687049
Short summary
We collected radar data between EDC, an ice core spanning ~800 000 years, and BELDC, the site chosen for a new
oldest icecore at nearby Little Dome C. These data allow us to identify 50 % older internal horizons than previously traced in the area. We fit a model to the ages of those horizons at BELDC to determine the age of deep ice there. We find that there is likely to be 1.5 Myr old ice ~265 m above the bed, with sufficient resolution to preserve desired climatic information.
We collected radar data between EDC, an ice core spanning ~800 000 years, and BELDC, the site...
