Articles | Volume 15, issue 4
The Cryosphere, 15, 1881–1888, 2021
https://doi.org/10.5194/tc-15-1881-2021

Special issue: Oldest Ice: finding and interpreting climate proxies in ice...

The Cryosphere, 15, 1881–1888, 2021
https://doi.org/10.5194/tc-15-1881-2021

Brief communication 19 Apr 2021

Brief communication | 19 Apr 2021

Brief communication: New radar constraints support presence of ice older than 1.5 Myr at Little Dome C

David A. Lilien et al.

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

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Short summary
We collected radar data between EDC, an ice core spanning ~800 000 years, and BELDC, the site chosen for a new oldest ice core 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.