The Cryosphere
The Cryosphere
TC
Articles | Volume 20, issue 9
Articles | Volume 20, issue 9
https://doi.org/10.5194/tc-20-5265-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-20-5265-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 9
Brief communication
 | 
21 Sep 2026
Brief communication |  | 21 Sep 2026

Brief communication: Limitations of medical X-ray computed tomography for estimating ice content in permafrost samples

Mahya Roustaei, Jonas Darey, Zakieh Mohammadi, and Daniel Fortier

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Short summary
This study assesses the accuracy of medical X-ray computed tomography (CT) for estimating volumetric ice content in permafrost samples. Comparison of 261 cores from northern Canada shows that medical CT systematically underestimates ice in sediment-rich samples and overestimates it in organic-rich ones due to resolution limits and material misclassification. The results highlight medical CT's value for visualizing cryostructures but its limits for quantitative ice estimation.
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