Glaciological characteristics in the Dome Fuji region and  new assessment for “Oldest Ice”

Karlsson, Nanna B.; Binder, Tobias; Eagles, Graeme; Helm, Veit; Pattyn, Frank; Van Liefferinge, Brice; Eisen, Olaf

doi:https://doi.org/10.5194/tc-12-2413-2018

Articles | Volume 12, issue 7

https://doi.org/10.5194/tc-12-2413-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

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

https://doi.org/10.5194/tc-12-2413-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 7

Research article

|

25 Jul 2018

Research article |

| 25 Jul 2018

Glaciological characteristics in the Dome Fuji region and new assessment for “Oldest Ice”

Nanna B. Karlsson, Tobias Binder, Graeme Eagles, Veit Helm, Frank Pattyn, Brice Van Liefferinge, and Olaf Eisen

Supplement

https://doi.org/10.5194/tc-12-2413-2018-supplement

Data sets

Ice thickness from the Dome Fuji region, East Antarctica from ice-penetrating radar. N. B. Karlsson, T. Binder, G. Eagles, V. Helm, F. Pattyn, B. Van Liefferinge, and O. Eisen https://doi.org/10.1594/PANGAEA.891323

Short summary

In this study, we investigate the probability that the Dome Fuji region in East Antarctica contains ice more than 1.5 Ma old. The retrieval of a continuous ice-core record extending beyond 1 Ma is imperative to understand why the frequency of ice ages changed from 40 to 100 ka approximately 1 Ma ago. We use a new radar dataset to improve the ice thickness maps, and apply a thermokinematic model to predict basal temperature and age of the ice. Our results indicate several areas of interest.