The Cryosphere
The Cryosphere
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Articles | Volume 19, issue 10
Articles | Volume 19, issue 10
https://doi.org/10.5194/tc-19-4989-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/tc-19-4989-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 10
Research article
 | 
23 Oct 2025
Research article |  | 23 Oct 2025

Thermokarst lakes disturb the permafrost structure and stimulate through-talik formation in the Qinghai–Tibet Plateau, China: a hydrogeophysical investigation

Xianmin Ke, Wei Wang, Fujun Niu, Zeyong Gao, Wenkang Huang, and Huake Cao

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Short summary
Permafrost measurements on the Qinghai–Tibet Plateau are typically limited to seasonally frozen soils or permafrost at a few borehole locations, with little effort made to detect deep permafrost and sublake taliks. We employed electrical resistivity tomography and ground temperature measurement methods to determine the current permafrost structure, revealing that permafrost below three thermokarst lakes has completely thawed.
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Emerging geophysical methods for permafrost investigations:...