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September 10, 2025

Active Layer Variability and Permafrost Stability on Axel Heiberg Island: Comparing Electrical Resistivity Tomography and Ground-Penetrating Radar

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Analysis discusses active layer variability and permafrost stability, suggesting ERT and GPR are complementary methods.

The active layer is highly sensitive to weather variations and microtopography, impacting hydrology.
Electrical resistivity tomography effectively delineates the boundary between the active layer and permafrost.
Ground-penetrating radar reveals finer-scale thaw patterns and moisture variability near the surface.
Complementary applications of ERT and GPR provide a comprehensive understanding of permafrost environments.

Kate Greenhow (2025) studied this question.

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