Articles | Volume 17, issue 2
https://doi.org/10.5194/tc-17-701-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-17-701-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Feb 2023
Research article |
| 13 Feb 2023
| 13 Feb 2023
Antarctic sea ice regime shift associated with decreasing zonal symmetry in the Southern Annular Mode
Serena Schroeter
CORRESPONDING AUTHOR
Earth Systems, CSIRO Environment, Hobart, Tasmania, Australia
Terence J. O'Kane
Earth Systems, CSIRO Environment, Hobart, Tasmania, Australia
Australian Centre for Excellence in Antarctic Science, Hobart,
Tasmania, Australia
Paul A. Sandery
Earth Systems, CSIRO Environment, Hobart, Tasmania, Australia
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Cited
23 citations as recorded by crossref.
- Reversal of Ross Sea shelf water freshening is linked to a persistent decline in Antarctic sea ice since the mid-2010s T. Kim et al. 10.1088/1748-9326/ae0f3f
- Initial transformation and export of dense shelf water from the Prydz Bay and Cape Darnley regions: A Lagrangian perspective using clustered drifters M. Murakami et al. 10.1016/j.polar.2025.101261
- A Significant Transition of Antarctic Sea Ice Variability in Response to the Shoaling of the Circumpolar Deep Water R. Chen et al. 10.1007/s00376-025-4169-3
- Record low Antarctic sea ice coverage indicates a new sea ice state A. Purich & E. Doddridge 10.1038/s43247-023-00961-9
- Role of anthropogenic forcing in Antarctic sea ice variability simulated in climate models Y. Morioka et al. 10.1038/s41467-024-54485-7
- Understanding the drivers and predictability of record low Antarctic sea ice in austral winter 2023 Z. Espinosa et al. 10.1038/s43247-024-01772-2
- The role of atmospheric and oceanic factors on the record low Antarctic sea ice extent of 2023 M. Swathi et al. 10.1016/j.gloplacha.2025.104858
- Drivers of summer Antarctic sea-ice extent at interannual time scale in CMIP6 large ensembles based on information flow D. Docquier et al. 10.1007/s00382-025-07878-3
- Impacts of Antarctic summer sea-ice extremes E. Doddridge et al. 10.1093/pnasnexus/pgaf164
- Polar Amplification: A Fractional Integration Analysis G. Caporale et al. 10.2139/ssrn.4803860
- Synergistic atmosphere-ocean-ice influences have driven the 2023 all-time Antarctic sea-ice record low J. Wang et al. 10.1038/s43247-024-01523-3
- Emerging evidence of abrupt changes in the Antarctic environment N. Abram et al. 10.1038/s41586-025-09349-5
- Exploring sea ice transport dynamics at the eastern gate of the Ross Sea N. Krauzig et al. 10.1016/j.dsr2.2024.105428
- Brief communication: New perspectives on the skill of modelled sea ice trends in light of recent Antarctic sea ice loss C. Holmes et al. 10.5194/tc-18-5641-2024
- Intrinsic and extrinsic drivers of juvenile survival in emperor penguins E. Le Scornec et al. 10.1007/s00300-025-03369-7
- Seasonal and Regional Antarctic Sea Ice Biases: A Closer Look at CMIP6 S. Schroeter 10.1080/07055900.2025.2507880
- Mapping of sea ice concentration using the NASA NIMBUS 5 Electrically Scanning Microwave Radiometer data from 1972–1977 W. Kolbe et al. 10.5194/essd-16-1247-2024
- Impact of increased anthropogenic Amazon wildfires on Antarctic Sea ice melt via albedo reduction S. Chakraborty et al. 10.1017/eds.2025.1
- The ongoing decrease in numbers of breeding female southern elephant seals (Mirounga leonina L.) at Macquarie Island M. Hindell et al. 10.1017/S0954102025000161
- The Four-Dimensional Carbon Cycle of the Southern Ocean A. Gray 10.1146/annurev-marine-041923-104057
- Southern Ocean sea-ice leads: first insights into regional lead patterns, seasonality, and trends, 2003–2023 U. Dubey et al. 10.5194/tc-19-3535-2025
- Some new evidence using fractional integration about trends, breaks and persistence in polar amplification G. Caporale et al. 10.1038/s41598-025-92990-x
- Asymmetry of the Antarctic Oscillation in Austral Autumn Y. Tang & A. Duan 10.1029/2023GL105678
22 citations as recorded by crossref.
- Reversal of Ross Sea shelf water freshening is linked to a persistent decline in Antarctic sea ice since the mid-2010s T. Kim et al. 10.1088/1748-9326/ae0f3f
- Initial transformation and export of dense shelf water from the Prydz Bay and Cape Darnley regions: A Lagrangian perspective using clustered drifters M. Murakami et al. 10.1016/j.polar.2025.101261
- A Significant Transition of Antarctic Sea Ice Variability in Response to the Shoaling of the Circumpolar Deep Water R. Chen et al. 10.1007/s00376-025-4169-3
- Record low Antarctic sea ice coverage indicates a new sea ice state A. Purich & E. Doddridge 10.1038/s43247-023-00961-9
- Role of anthropogenic forcing in Antarctic sea ice variability simulated in climate models Y. Morioka et al. 10.1038/s41467-024-54485-7
- Understanding the drivers and predictability of record low Antarctic sea ice in austral winter 2023 Z. Espinosa et al. 10.1038/s43247-024-01772-2
- The role of atmospheric and oceanic factors on the record low Antarctic sea ice extent of 2023 M. Swathi et al. 10.1016/j.gloplacha.2025.104858
- Drivers of summer Antarctic sea-ice extent at interannual time scale in CMIP6 large ensembles based on information flow D. Docquier et al. 10.1007/s00382-025-07878-3
- Impacts of Antarctic summer sea-ice extremes E. Doddridge et al. 10.1093/pnasnexus/pgaf164
- Polar Amplification: A Fractional Integration Analysis G. Caporale et al. 10.2139/ssrn.4803860
- Synergistic atmosphere-ocean-ice influences have driven the 2023 all-time Antarctic sea-ice record low J. Wang et al. 10.1038/s43247-024-01523-3
- Emerging evidence of abrupt changes in the Antarctic environment N. Abram et al. 10.1038/s41586-025-09349-5
- Exploring sea ice transport dynamics at the eastern gate of the Ross Sea N. Krauzig et al. 10.1016/j.dsr2.2024.105428
- Brief communication: New perspectives on the skill of modelled sea ice trends in light of recent Antarctic sea ice loss C. Holmes et al. 10.5194/tc-18-5641-2024
- Intrinsic and extrinsic drivers of juvenile survival in emperor penguins E. Le Scornec et al. 10.1007/s00300-025-03369-7
- Seasonal and Regional Antarctic Sea Ice Biases: A Closer Look at CMIP6 S. Schroeter 10.1080/07055900.2025.2507880
- Mapping of sea ice concentration using the NASA NIMBUS 5 Electrically Scanning Microwave Radiometer data from 1972–1977 W. Kolbe et al. 10.5194/essd-16-1247-2024
- Impact of increased anthropogenic Amazon wildfires on Antarctic Sea ice melt via albedo reduction S. Chakraborty et al. 10.1017/eds.2025.1
- The ongoing decrease in numbers of breeding female southern elephant seals (Mirounga leonina L.) at Macquarie Island M. Hindell et al. 10.1017/S0954102025000161
- The Four-Dimensional Carbon Cycle of the Southern Ocean A. Gray 10.1146/annurev-marine-041923-104057
- Southern Ocean sea-ice leads: first insights into regional lead patterns, seasonality, and trends, 2003–2023 U. Dubey et al. 10.5194/tc-19-3535-2025
- Some new evidence using fractional integration about trends, breaks and persistence in polar amplification G. Caporale et al. 10.1038/s41598-025-92990-x
1 citations as recorded by crossref.
Latest update: 29 Oct 2025
Short summary
Antarctic sea ice has increased over much of the satellite record, but we show that the early, strongly opposing regional trends diminish and reverse over time, leading to overall negative trends in recent decades. The dominant pattern of atmospheric flow has changed from strongly east–west to more wave-like with enhanced north–south winds. Sea surface temperatures have also changed from circumpolar cooling to regional warming, suggesting recent record low sea ice will not rapidly recover.
Antarctic sea ice has increased over much of the satellite record, but we show that the early,...
