Articles | Volume 19, issue 9
https://doi.org/10.5194/tc-19-3991-2025
https://doi.org/10.5194/tc-19-3991-2025
Research article
 | 
23 Sep 2025
Research article |  | 23 Sep 2025

Comparing thaw probing, electrical resistivity tomography, and airborne lidar to quantify lateral and vertical thaw in rapidly degrading boreal permafrost

Thomas A. Douglas, M. Torre Jorgenson, Taylor Sullivan, and Caiyun Zhang

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Short summary
Permafrost thaw across Earth's high latitudes is leading to dramatic changes in vegetation and hydrology. We undertook a two-decade-long study on the Tanana Flats near Fairbanks, Alaska, to measure permafrost thaw and associated ground surface subsidence via field-based and remote-sensing techniques. The study identified strengths and limitations of the three methods we used to quantify permafrost thaw degradation.
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