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Climate chronicles

Sea ice in 2023

Nature Reviews Earth & Environment volume 5, pages 235–237 (2024)Cite this article

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Antarctic sea ice extent was the lowest on record in 2023, with an annual mean of 9.81 million km2, beating the previous minimum of 2022. Arctic sea ice extent was also low, with an annual mean of 10.49 million km2, but did not break any records.

Key points

  • Global sea ice extent (Antarctic and Arctic combined) reached a satellite era record daily minimum of 15.86 million km2 on 31st January 2023.

  • Antarctic sea ice extent exhibited record lows in many months of the year, including the lowest monthly summer minimum (1.91 million km2 in February) and the lowest monthly winter maximum (16.80 million km2 in September).

  • Arctic sea ice anomalies were largest in boreal summer, including a September sea ice extent of 4.37 million km2, the 5th lowest on record.

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Fig. 1: Arctic and Antarctic sea ice change.

References

  1. Christie, F. D. W. et al. Antarctic ice-shelf advance driven by anomalous atmospheric and sea-ice circulation. Nat. Geosci. 15, 356–362 (2022).

    Article  CAS  Google Scholar 

  2. Hauser, D. D. W. et al. Co-production of knowledge reveals loss of Indigenous hunting opportunities in the face of accelerating Arctic climate change. Environ. Res. Lett. 16, 095003 (2021).

    Article  Google Scholar 

  3. Babb, D. G. et al. The stepwise reduction of multiyear sea ice area in the Arctic Ocean since 1980. J. Geophys. Res.: Oceans 128, e2023JC020157 (2023).

    Article  Google Scholar 

  4. Raphael, M. N. & Handcock, M. S. A new record minimum for Antarctic sea ice. Nat. Rev. Earth Environ. 3, 215–216 (2022).

    Article  Google Scholar 

  5. Fetterer, F., Knowles, K., Meier, W. N., Savoie, M. & Windnagel, A. K. Sea Ice Index, Version 3 [Daily_Extent, Monthly_Extent, N_Sea_Ice_Index_Regional_Monthly, S_Sea_Ice_Index_Regional_Monthly]. (National Snow and Ice Data Center, accessed 19 February 2024) https://doi.org/10.7265/N5K072F8 (2017).

  6. Meier, W. N., Fetterer, F., Windnagel, A. K. & Stewart, J. S. NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 4. [G02202_V4/south/monthly/ and G02202_V4/north/monthly/]. (National Snow and Ice Data Center, accessed 19 February 2024) https://doi.org/10.7265/EFMZ-2T65 (2021). 

  7. Kim, Y.-H., Min, S.-K., Gillett, N. P., Notz, D. & Malinina, E. Observationally-constrained projections of an ice-free Arctic even under a low emission scenario. Nat. Commun. 14, 3139 (2023).

    Article  CAS  Google Scholar 

  8. Cheng, L. et al. New Record Ocean Temperatures and Related Climate Indicators in 2023. Adv. Atmos. Sci. https://doi.org/10.1007/s00376-024-3378-5 (2024).

    Article  Google Scholar 

  9. Cheng, L. et al. Ocean heat content in 2023. Nat. Rev. Earth Environ. https://doi.org/10.1038/s43017-024-00539-9 (2024).

    Article  Google Scholar 

  10. Fan, T., Deser, C. & Schneider, D. P. Recent Antarctic sea ice trends in the context of Southern Ocean surface climate variations since 1950. Geophys. Res. Lett. 41, 2419–2426 (2014).

    Article  Google Scholar 

Download references

Acknowledgements

L.R. was supported by the NASA Modeling Analysis and Prediction program. W.M. was supported by the NASA Earth Science Data and Information System project. We thank M. Raphael and G. Schmidt for providing feedback.

Author information

Authors and Affiliations

  1. Center for Climate Systems Research, Columbia University, New York, NY, USA

    Lettie A. Roach

  2. NASA Goddard Institute for Space Studies, New York, NY, USA

    Lettie A. Roach

  3. National Snow and Ice Data Center, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USA

    Walter N. Meier

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  1. Lettie A. Roach
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Correspondence to Lettie A. Roach.

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Roach, L.A., Meier, W.N. Sea ice in 2023. Nat Rev Earth Environ 5, 235–237 (2024). https://doi.org/10.1038/s43017-024-00542-0

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