The Cryosphere
The Cryosphere
TC
Articles | Volume 20, issue 4
Articles | Volume 20, issue 4
https://doi.org/10.5194/tc-20-2375-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-20-2375-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 4
Research article
 | 
24 Apr 2026
Research article |  | 24 Apr 2026

Determining TTOP model parameter importance and overall performance across northern Canada

Madeleine C. Garibaldi, Philip P. Bonnaventure, Robert G. Way, Alexandre Bevington, Sharon L. Smith, Scott F. Lamoureux, Jean E. Holloway, Antoni G. Lewkowicz, and Hannah Ackerman

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Short summary
We assessed the sensitivity of a simple permafrost model to changes in parameter values using measured data across northern Canada. We altered the value of one parameter at a time to assess the changes in the resulting temperature. The model was most sensitive to changes in the freezing season parameters and least sensitive to changes in the thawing parameters. However, the importance of specific parameters varied across Canada. The findings of this study can aid in development of future models.
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