The Cryosphere
The Cryosphere
TC
Articles | Volume 20, issue 10
Articles | Volume 20, issue 10
https://doi.org/10.5194/tc-20-5697-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-20-5697-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 10
Research article
 | 
06 Oct 2026
Research article |  | 06 Oct 2026

A 2020 permafrost distribution map of the Qinghai-Tibet Plateau

Yuhong Chen, Zhuotong Nan, Wenbiao Tian, Yi Zhao, Shuping Zhao, Dongkai Yang, Guifei Jing, and Fujun Niu

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Short summary
This study presents a 1-km permafrost map of the Qinghai-Tibet Plateau for 2020, generated via a frost number model and space-for-time substitution. Permafrost covers 1.038×10⁶ km² (39.35 %), a 1.82 % decline since 2010, while seasonally frozen ground covers 1.466×10⁶ km² (55.57 %). Validated against boreholes, the map achieves 0.84 accuracy (Kappa= 0.58). This map offers a critical, up-to-date baseline for cryospheric research.
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