Thermo-hydrologic processes governing supra-permafrost talik dynamics in discontinuous permafrost near Umiujaq (Québec, Canada)
Links
- More information: Publisher Index Page
- Download citation as: RIS | Dublin Core
Abstract
Widespread supra-permafrost talik formation is
currently recognized as a critical mechanism that
could accelerate permafrost thaw in the Arctic
(e.g., Connon et al. 2018; Farquharson et al. 2022).
However, the trajectory of permafrost dynamics
following talik formation may prove difficult to predict.
Physically-based cryohydrogeologic models provide
a powerful tool for understanding processes and
factors controlling talik dynamics and, ultimately, how
permafrost will respond to climate change. Such
models are typically used to represent multiple
non-linear processes relevant for groundwater
systems in cold regions, such as coupled heat and
groundwater movement, including freeze-thaw
dynamics and the effects on the surface energy
balance and the subsurface thermal and hydraulic
properties (Lamontagne-Hallé et al. 2020). Though
cryohydrogeologic modeling advances have been
made in simulating talik dynamics, few applications
have been tested against robust long-term
hydrometeorological and subsurface observations.
Suggested Citation
Fortier, P., Young, N., Walvoord, M.A., Lemieux, J., Mohammed, A., 2024, Thermo-hydrologic processes governing supra-permafrost talik dynamics in discontinuous permafrost near Umiujaq (Québec, Canada), in Proceedings of the 12th International Conference on Permafrost, v. 2, Whitehorse, Canada, June 16-20, 2024, p. 374-375.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Thermo-hydrologic processes governing supra-permafrost talik dynamics in discontinuous permafrost near Umiujaq (Québec, Canada) |
| Volume | 2 |
| Year Published | 2024 |
| Language | English |
| Contributing office(s) | WMA - Earth System Processes Division |
| Description | 2 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Conference publication |
| Larger Work Title | Proceedings of the 12th International Conference on Permafrost |
| First page | 374 |
| Last page | 375 |
| Conference Title | 12th International Conference on Permafrost (ICOP 2024) |
| Conference Location | Whitehorse, Canada |
| Conference Date | June 16-20, 2024 |
| Country | Canada |
| State | Quebec |
| Other Geospatial | Umiujaq |