The Cryosphere
The Cryosphere
TC
Articles | Volume 17, issue 11
Articles | Volume 17, issue 11
https://doi.org/10.5194/tc-17-4995-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-17-4995-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 11
Research article
 | 
27 Nov 2023
Research article |  | 27 Nov 2023

Signature of the stratosphere–troposphere coupling on recent record-breaking Antarctic sea-ice anomalies

Raúl R. Cordero, Sarah Feron, Alessandro Damiani, Pedro J. Llanillo, Jorge Carrasco, Alia L. Khan, Richard Bintanja, Zutao Ouyang, and Gino Casassa

Supplement

https://doi.org/10.5194/tc-17-4995-2023-supplement

Data sets

Sea Ice Index, Version 3 F. Fetterer, K. Knowles, W. N. Meier, M. Savoie, and A. K. Windnagel https://doi.org/10.7265/N5K072F8

inst3_3d_asm_Cp: MERRA-2 3D IAU State, Meteorology Instantaneous 3-hourly (p-coord, 0.625x0.5L42), version 5.12.4 Global Modeling and Assimilation Office (GMAO) https://doi.org/10.5067/VJAFPLI1CSIV

Relationships between Low-Frequency Variability in the Southern Hemisphere and Sea Surface Temperature Anomalies (https://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/aao/aao.shtml#publication) K. C. Mo https://doi.org/10.1175/1520-0442(2000)013<3599:RBLFVI>2.0.CO;2

The ERA5 global reanalysis (https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era5) H. Hersbach, B. Bell, P. Berrisford, S. Hirahara, A. Horányi, J. Muñoz-Sabater, and J. N. Thépaut https://doi.org/10.1002/qj.3803

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Short summary
We investigate the response of Antarctic sea ice to year-to-year changes in the tropospheric–stratospheric dynamics. Our findings suggest that, by affecting the tropospheric westerlies, the strength of the stratospheric polar vortex has played a major role in recent record-breaking anomalies in Antarctic sea ice.
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