Articles | Volume 15, issue 9
The Cryosphere, 15, 4281–4313, 2021
https://doi.org/10.5194/tc-15-4281-2021
The Cryosphere, 15, 4281–4313, 2021
https://doi.org/10.5194/tc-15-4281-2021

Research article 07 Sep 2021

Research article | 07 Sep 2021

Southern Ocean polynyas in CMIP6 models

Martin Mohrmann et al.

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Latest update: 23 Sep 2021
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Short summary
Polynyas are large open-water areas within the sea ice. We developed a method to estimate their area, distribution and frequency for the Southern Ocean in climate models and observations. All models have polynyas along the coast but few do so in the open ocean, in contrast to observations. We examine potential atmospheric and oceanic drivers of open-water polynyas and discuss recently implemented schemes that may have improved some models' polynya representation.