The Cryosphere
The Cryosphere
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Articles | Volume 20, issue 1
Articles | Volume 20, issue 1
https://doi.org/10.5194/tc-20-245-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-20-245-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 1
Research article
 | 
15 Jan 2026
Research article |  | 15 Jan 2026

Ephemeral grounding on the Pine Island Ice Shelf, West Antarctica, from 2014–2023

Yite Chien, Chunxia Zhou, Sainan Sun, Yiming Chen, Tao Wang, and Baojun Zhang

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Short summary
Our research examines how temporary contact between floating ice shelves and the seafloor affects ice flow and stability. Analyzing satellite data from 2014 to 2023, we found that tidal forces, ice thickness, and underwater terrain influence grounding events at Pine Island Ice Shelf. These events may have triggered rifts that led to the 2020 iceberg breakoff. Our study emphasizes the need for ongoing monitoring to better predict future changes in Antarctica’s vulnerable ice regions.
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