The Cryosphere
The Cryosphere
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Articles | Volume 20, issue 1
Articles | Volume 20, issue 1
https://doi.org/10.5194/tc-20-647-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-20-647-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 1
Research article
 | 
26 Jan 2026
Research article |  | 26 Jan 2026

A seismic analysis of subglacial lake D2 (Subglacial Lake Cheongsuk) beneath David Glacier, Antarctica

Hyeontae Ju, Seung-Goo Kang, Yeonjin Choi, Sukjoon Pyun, Min Je Lee, Hoje Kwak, Kwansoo Kim, Yeadong Kim, and Jong Ik Lee

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Short summary
We analyzed the morphology of the D2 subglacial lake in Antarctica using 2021/22 seismic data. The ice–lake boundary is well identified, but there is ambiguity about the presence of a sediment layer at the lake bottom (Scenario 1: no sediment; Scenario 2: with sediment). Both scenarios were modeled and compared with field data. Estimated depth is approximately 53–82 m (model 1) or approximately 10 m (model 2). The quantified structure will help pick future drill sites.
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