Articles | Volume 15, issue 10
https://doi.org/10.5194/tc-15-4853-2021
https://doi.org/10.5194/tc-15-4853-2021
Research article
 | 
15 Oct 2021
Research article |  | 15 Oct 2021

Impact of lateral groundwater flow on hydrothermal conditions of the active layer in a high-Arctic hillslope setting

Alexandra Hamm and Andrew Frampton

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Model-based analysis of solute transport and potential carbon mineralization in the active layer of a hillslope underlain by permafrost with seasonal variability and climate change
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The Cryosphere, 19, 3693–3724, https://doi.org/10.5194/tc-19-3693-2025,https://doi.org/10.5194/tc-19-3693-2025, 2025
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Cited articles

Abolt, C. J., Young, M. H., Atchley, A. L., Harp, D. R., and Coon, E. T.: Feedbacks Between Surface Deformation and Permafrost Degradation in Ice Wedge Polygons, Arctic Coastal Plain, Alaska, J. Geophys. Res.-Earth, 125, 3, https://doi.org/10.1029/2019JF005349, 2020. a
Atchley, A. L., Painter, S. L., Harp, D. R., Coon, E. T., Wilson, C. J., Liljedahl, A. K., and Romanovsky, V. E.: Using field observations to inform thermal hydrology models of permafrost dynamics with ATS (v0.83), Geosci. Model Dev., 8, 2701–2722, https://doi.org/10.5194/gmd-8-2701-2015, 2015. a
Atchley, A. L., Coon, E. T., Painter, S. L., Harp, D. R., and Wilson, C. J.: Influences and interactions of inundation, peat, and snow on active layer thickness, Geophys. Res. Lett., 43, 5116–5123, https://doi.org/10.1002/2016GL068550, 2016. a
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Chen, L., Fortier, D., McKenzie, J. M., and Sliger, M.: Impact of heat advection on the thermal regime of roads built on permafrost, Hydrol. Process., 34, 1647–1664, https://doi.org/10.1002/hyp.13688, 2020. a
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Short summary
To investigate the effect of groundwater flow on the active layer on slopes in permafrost landscapes, we conducted several modeling experiments. We find that groundwater moving downslope in the subsurface causes areas uphill to be warmer than downhill. This effect is explained by differences in heat capacity, conductivity, and infiltration. Therefore, in a changing climate, higher soil moisture could have a cooling effect on the active layer and attenuate warming from higher air temperatures.
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