Research program
Research plan
PhD projects
ESR 1
ESR 2
ESR 3
ESR 4
ESR 5
ESR 6
ESR 7
ESR 8
ESR 9
ESR 10
ESR 11
ESR 12
ESR 13
ESR 14
ESR 15

ESR 14 – Combining an ice flow model with radar observations in the Dome C Area

Early stage researcher: Ailsa Chung (CNRS-IGE, FR)

Supervisors: F. Parrenin (CNRS-IGE, FR), O. Eisen (AWI, DE)

Academic secondment: AWI (DE), UKRI-BAS (UK) ; Non-academic secondment: PAGES (CH)

Abstract

Understanding how ice flows in East Antarctica is of uppermost importance to determine the distribution of age with depth for deep ice cores.

One of the most important applications is to produce the depth vs age relationship, hence the first age model, for the Beyond EPICA ice core. This study has also numerous other applications since other deep drilling are projected in the Dome C area with the aim to retrieve old ice under the IPICS umbrella (http://pastglobalchanges.org/science/end-aff/ipics/intro).

The objective of ESR 14 is to use existing isochronal horizons traced and dated by linking it to the EPICA DC ice core to constrain an ice flow model in the Dome C area.

Key words: Ice flow modelling, Dome C area, radar observations

Scientific results

Chung, A., Parrenin, F., Steinhage, D., Mulvaney, R., Martín, C., Cavitte, M. G. P., Lilien, D. A., Helm, V., Taylor, D., Gogineni, P., Ritz, C., Frezzotti, M., O’Neill, C., Miller, H., Dahl-Jensen, D., and Eisen, O.: Stagnant ice and age modelling in the Dome C region, Antarctica, The Cryosphere, 17, 3461–3483, https://doi.org/10.5194/tc-17-3461-2023, 2023.
Wang, Z., Chung, A., Steinhage, D., Parrenin, F., Freitag, J., and Eisen, O.: Mapping age and basal conditions of ice in the Dome Fuji region, Antarctica, by combining radar internal layer stratigraphy and flow modeling, The Cryosphere, 17, 4297–4314, https://doi.org/10.5194/tc-17-4297-2023, 2023.

News

Presentation by Ailsa Chung at the  28th International Polar Conference in Potsdam
On the 03.05.2022 from 08:30 to 08:45.
Title: Age-depth model using radar measurements at Little Dome C
Authors: Ailsa Chung et al.