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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: Dataset Open Access
Language:en
Published: PANGAEA 2024
Subjects:
Accumulation rate in ice equivalent per year; Age, 1D numerical model; Age density; BELDC_site; BE-OI; Beyond EPICA drill site; Beyond EPICA - Oldest Ice; DEPTH, ice/snow; Ice age; Ice age, uncertainty; MULT; Multiple investigations; Thinning function; Velocity, vertical
Online Access:https://doi.org/10.1594/PANGAEA.966739
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Table of Contents:
  • We used a 1D numerical model constrained by radar horizons to find the age-depth profile at the European Beyond EPICA - Oldest Ice project drill site (BELDC; 75.29917 °S, 122.44516 °E) on Little Dome C (LDC), Antarctica. Further details on the model can be found in the associated publication: Chung et al., 2023 (The Cryosphere). The model was constrained by 20 horizons from 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). The age-depth profile extends to the deepest point where modelled age density < 20 ka/m - the threshold for which a paleoclimatic signal can reasonably be extracted.

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