Toward a marginal Arctic sea ice cover: changes to freezing, melting and dynamics

Frew, Rebecca C.; Bateson, Adam William; Feltham, Daniel L.; Schröder, David

doi:https://doi.org/10.5194/tc-19-2115-2025

Articles | Volume 19, issue 6

https://doi.org/10.5194/tc-19-2115-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-19-2115-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 6

Research article

|

23 Jun 2025

Research article |

| 23 Jun 2025

Toward a marginal Arctic sea ice cover: changes to freezing, melting and dynamics

Rebecca C. Frew, Adam William Bateson, Daniel L. Feltham, and David Schröder

Data sets

Simulations with the sea ice model CICE exploring changes to freezing, melting, and dynamics of the Arctic sea ice as it transitions to a more marginal state Rebecca Frew https://doi.org/10.17864/1947.001410

Short summary

As summer Arctic sea ice extent has retreated, the marginal ice zone (MIZ) has been widening and making up an increasing percentage of the summer sea ice. The MIZ is projected to become a larger percentage of the summer ice cover, as the Arctic transitions to ice-free summers. Using a sea ice model, we find that the processes and timing of sea ice loss differ in the MIZ to the rest of the sea cover. We also find the balance of processes within the MIZ changes over time as the sea ice retreats.