The Cryosphere
The Cryosphere
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Articles | Volume 19, issue 11
Articles | Volume 19, issue 11
https://doi.org/10.5194/tc-19-5639-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-5639-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 11
Research article
 | 
13 Nov 2025
Research article |  | 13 Nov 2025

Impact of non-normal flow rule on linear kinematic features in pan-Arctic ice-ocean simulations

Jean-François Lemieux, Mathieu Plante, Nils Hutter, Damien Ringeisen, Bruno Tremblay, François Roy, and Philippe Blain

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Latest update: 12 Nov 2026
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Short summary
In sea ice models, the flow rule determines how sea ice deforms (opening, closing and shearing) when critical stresses are reached. We implemented in CICE a novel approach to define the flow rule. This is a useful capability as it allows to independently optimize critical stresses and deformations. As opposed to the standard flow rule, the novel approach can lead to a thicker and more active sea ice cover with narrower deformations. 
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