Articles | Volume 15, issue 6
The Cryosphere, 15, 2873–2888, 2021
https://doi.org/10.5194/tc-15-2873-2021
The Cryosphere, 15, 2873–2888, 2021
https://doi.org/10.5194/tc-15-2873-2021

Research article 24 Jun 2021

Research article | 24 Jun 2021

Non-normal flow rules affect fracture angles in sea ice viscous–plastic rheologies

Damien Ringeisen et al.

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Latest update: 23 Sep 2021
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Short summary
Deformations in the Arctic sea ice cover take the shape of narrow lines. High-resolution sea ice models recreate these deformation lines. Recent studies have shown that the most widely used sea ice model creates fracture lines with intersection angles larger than those observed and cannot create smaller angles. In our work, we change the way sea ice deforms post-fracture. This change allows us to understand the link between the sea ice model and intersection angles and create more acute angles.