Modelled age-depth profiles of two ice core drill sites on Little Dome C, Antarctica ...

• Main Authors: Chung, Ailsa, Parrenin, Frédéric, Steinhage, Daniel, Mulvaney, Robert, Martín, Carlos, Cavitte, Marie G P, Lilien, David A, Helm, Veit, Taylor, Drew, Gogineni, Prasad, Ritz, Catherine, Frezzotti, Massimo, O'Neill, Charles, Miller, Heinrich, Dahl-Jensen, Dorthe, Eisen, Olaf
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: PANGAEA 2024
• Subjects: Beyond EPICA - Oldest Ice BE-OI; Alabama; Antarctic; Antarc*; Antarctica; British Antarctic Survey; EPICA; ice core
• Online Access: https://dx.doi.org/10.1594/pangaea.966738; https://doi.pangaea.de/10.1594/PANGAEA.966738

We used a 1D numerical model constrained by radar horizons to find the age-depth profiles at two locations on Little Dome C (LDC), Antarctica - the European Beyond EPICA - Oldest Ice project drill site (BELDC; 75.29917 °S, 122.44516 °E) and the Australian Million Year Ice Core project drill site (MYIC; 75.34132 °S, 122.52059 °E). Further details on the model can be found in the associated publication (Chung et al., 2023; The Cryosphere). The model was constrained by two different sets of radar horizons. 1. The radar survey conducted over the Dome C region conducted by the British Antarctic Survey over the 2016-17 and 2017-18 Antarctic field seasons using the sledge-borne DEep LOoking Radio Echo Sounder (DELORES; Mulvaney et al., 2023). 2. The radar survey conducted during the 2019-20 Antarctic field season in a collaboration between the University of Alabama (UA), the University of Copenhagen (CPH) and the Alfred Wegener Institute (AWI), using the Little Dome C-Very High Frequency radar system (LDC-VHF; ...