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.
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.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 Nov 2023
Research article |
| 27 Nov 2023
| 27 Nov 2023
Signature of the stratosphere–troposphere coupling on recent record-breaking Antarctic sea-ice anomalies
Raúl R. Cordero
Department of Physics, Universidad de Santiago de Chile, Av. Bernardo O'Higgins 3363, Santiago, Chile
Sarah Feron
CORRESPONDING AUTHOR
Department of Physics, Universidad de Santiago de Chile, Av. Bernardo O'Higgins 3363, Santiago, Chile
Department of Knowledge Infrastructures, University of Groningen, Wirdumerdijk 34, 8911 CE, Leeuwarden, the Netherlands
Alessandro Damiani
Center for Environmental Remote Sensing, Chiba University, 1–33 Yayoicho, Inage Ward, Chiba, 263-8522, Japan
Pedro J. Llanillo
Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
Jorge Carrasco
Gaia Research Center, University of Magallanes, Av. Manuel Bulnes 1855, 621-0427 Punta Arenas, Chile
Alia L. Khan
Cryosphere Remote Sensing and Aquatic Biogeochemistry Lab, Western Washington University, 516 High St, Bellingham, WA 98225, USA
National Snow and Ice Data Center, Cooperative Institute for Research in Environmental Sciences, University of Colorado–Boulder, 449 UCB University of Colorado Boulder, CO 80309-0449 USA
Richard Bintanja
Royal Netherlands Meteorological Institute (KNMI), Utrechtseweg 297, 3731 GA De Bilt, the Netherlands
Energy and Sustainability Research Institute Groningen (ESRIG), University of Groningen, Groningen, the Netherlands
Zutao Ouyang
Department of Earth System Science, Stanford University, 473 Via Ortega, Stanford, CA 94305-2210, USA
Gino Casassa
Gaia Research Center, University of Magallanes, Av. Manuel Bulnes 1855, 621-0427 Punta Arenas, Chile
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Cited articles
Banerjee, A., Fyfe, J. C., and Polvani, L. M.: A pause in Southern Hemisphere circulation trends due to the Montreal Protocol, Nature, 579, 544–548, https://doi.org/10.1038/s41586-020-2120-4, 2020.
Bergner, N., Friedel, M., Domeisen, D. I. V., Waugh, D., and Chiodo, G.: Exploring the link between austral stratospheric polar vortex anomalies and surface climate in chemistry-climate models, Atmos. Chem. Phys., 22, 13915–13934, https://doi.org/10.5194/acp-22-13915-2022, 2022.
Bintanja, R., van Oldenborgh, G. J., Drijfhout, S. S., Wouters, B., and Katsman, C. A.: Important role for ocean warming and increased ice-shelf melt in Antarctic sea-ice expansion, Nat. Geosci., 6, 376–379, https://doi.org/10.1038/ngeo1767, 2013.
Byrne, N. J. and Shepherd, T. G.: Seasonal persistence of circulation anomalies in the Southern Hemisphere stratosphere and its implications for the troposphere, J. Climate, 31, 3467–3483, https://doi.org/10.1175/JCLI-D-17-0557.1, 2018.
Clem, K. R., Renwick, J. A., and McGregor, J.: Large-scale forcing of the Amundsen Sea low and its influence on sea ice and West Antarctic temperature, J. Climate, 30, 8405–8424, https://doi.org/10.1175/JCLI-D-16-0891.1, 2017.
Cordero, R. R., Feron, S., Damiani, A., Redondas, A., Carrasco, J., Sepúlveda, E., and Seckmeyer, G.: Persistent extreme ultraviolet irradiance in Antarctica despite the ozone recovery onset, Sci. Rep., 12, 1266, https://doi.org/10.1038/s41598-022-05449-8, 2022.
Crosta, X., Etourneau, J., Orme, L. C., Dalaiden, Q., Campagne, P., Swingedouw, D., and Ikehara, M.: Multi-decadal trends in Antarctic sea-ice extent driven by ENSO–SAM over the last 2,000 years, Nat. Geosci., 14, 156–160, https://doi.org/10.1038/s41561-021-00697-1, 2021.
Dalaiden, Q., Goosse, H., Rezsohazy, J., and Thomas, E. R.: Reconstructing atmospheric circulation and sea-ice extent in the West Antarctic over the past 200 years using data assimilation, Clim. Dynam., 57, 3479–3503, https://doi.org/10.1007/s00382-021-05879-6, 2021.
Dalaiden, Q., Schurer, A. P., Kirchmeier-Young, M. C., Goosse, H., and Hegerl, G. C.: Antarctic Surface Climate Changes Since the Mid-20th Century Driven by Anthropogenic Forcing, Geophys. Res. Lett., 49, e2022GL099543, https://doi.org/10.1029/2022GL099543, 2022.
Damiani, A., Cordero, R. R., Llanillo, P. J., Feron, S., Boisier, J. P., Garreaud, R., and Watanabe, S.: Connection between Antarctic ozone and climate: Interannual precipitation changes in the Southern Hemisphere, Atmosphere, 11, 579, https://doi.org/10.3390/atmos11060579, 2020.
Doddridge, E. W. and Marshall, J.: Modulation of the seasonal cycle of Antarctic sea ice extent related to the Southern Annular Mode, Geophys. Res. Lett., 44, 9761–9768, https://doi.org/10.1002/2017GL074319, 2017.
Eayrs, C., Li, X., Raphael, M. N., and Holland, D. M.: Rapid decline in Antarctic sea ice in recent years hints at future change, Nat. Geosci., 14, 460–464, https://doi.org/10.1038/s41561-021-00768-3, 2021.
Ferreira, D., Marshall, J., Bitz, C. M., Solomon, S., and Plumb, A.: Antarctic Ocean and sea ice response to ozone depletion: A two-time-scale problem, J. Climate, 28, 1206–1226 https://doi.org/10.1175/JCLI-D-14-00313.1, 2015.
Fetterer, F., Knowles, K., Meier, W. N., Savoie, M., and Windnagel, A. K.: Sea Ice Index, Version 3, Boulder, Colorado USA. National Snow and Ice Data Center [data set], https://doi.org/10.7265/N5K072F8, 2017.
Fogt, R. L., Bromwich, D. H., and Hines, K. M.: Understanding the SAM influence on the South Pacific ENSO teleconnection, Clim. Dynam., 36, 1555–1576, https://doi.org/10.1007/s00382-010-0905-0, 2011.
Fogt, R. L., Sleinkofer, A. M., Raphael, M. N., and Handcock, M. S.: A regime shift in seasonal total Antarctic sea ice extent in the twentieth century, Nat. Clim. Change, 12, 54–62, https://doi.org/10.1038/s41558-021-01254-9, 2022.
Gelaro, R., McCarty, W., Suárez, M. J., Todling, R., Molod, A., Takacs, L., and Zhao, B.: The modern-era retrospective analysis for research and applications, version 2 (MERRA-2), J. Climate, 30, 5419–5454, https://doi.org/10.1175/JCLI-D-16-0758.1, 2017.
Global Modeling and Assimilation Office (GMAO): inst3_3d_asm_Cp: MERRA-2 3D IAU State, Meteorology Instantaneous 3-hourly (p-coord, 0.625x0.5L42), version 5.12.4, Greenbelt, MD, USA: Goddard Space Flight Center Distributed Active Archive Center (GSFC DAAC) [data set], https://doi.org/10.5067/VJAFPLI1CSIV, 2015.
Goosse, H., Allende Contador, S., Bitz, C. M., Blanchard-Wrigglesworth, E., Eayrs, C., Fichefet, T., Himmich, K., Huot, P.-V., Klein, F., Marchi, S., Massonnet, F., Mezzina, B., Pelletier, C., Roach, L., Vancoppenolle, M., and van Lipzig, N. P. M.: Modulation of the seasonal cycle of the Antarctic sea ice extent by sea ice processes and feedbacks with the ocean and the atmosphere, The Cryosphere, 17, 407–425, https://doi.org/10.5194/tc-17-407-2023, 2023.
Hersbach, H., Bell, B., Berrisford, P., Hirahara, S., Horányi, A., Muñoz-Sabater, J., and Thépaut, J. N.: The ERA5 global reanalysis, Q. J. Roy. Meteor., 146, 1999–2049, https://doi.org/10.1002/qj.3803, 2020 (data available at: https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era5, last access: 15 January 2023).
Hobbs, W. R., Massom, R., Stammerjohn, S., Reid, P., Williams, G., and Meier, W.: A review of recent changes in Southern Ocean sea ice, their drivers and forcings, Glob. Planet. Change, 143, 228–250, https://doi.org/10.1016/j.gloplacha.2016.06.008, 2016.
Holland, M. M., Landrum, M., L., Raphael, M., and Stammerjohn, S.: Springtime winds drive Ross Sea ice variability and change in the following autumn, Nat. Commun., 8, 731, https://doi.org/10.1038/s41467-017-00820-0, 2017.
Holland, M. M., Landrum, L., Raphael, M. N., and Kwok, R.: The regional, seasonal, and lagged influence of the Amundsen Sea Low on Antarctic sea ice, Geophys. Res. Lett., 45(20), 11227–11234, https://doi.org/10.1029/2018GL080140, 2018.
Hunter, J. D.: Matplotlib: A 2D graphics environment, Comput. Sci. Eng., 9, 90–95 https://doi.org/10.1109/MCSE.2007.55, 2007.
Kwon, H., Choi, H., Kim, B. M., Kim, S. W., and Kim, S. J.: Recent weakening of the southern stratospheric polar vortex and its impact on the surface climate over Antarctica, Environ. Res. Lett., 15, 094072, https://doi.org/10.1088/1748-9326/ab9d3d, 2020.
Lannuzel, D., Tedesco, L., Van Leeuwe, M., Campbell, K., Flores, H., Delille, B., and Wongpan, P.: The future of Arctic sea-ice biogeochemistry and ice-associated ecosystems, Nat. Clim. Change, 10, 983–992, https://doi.org/10.1038/s41558-020-00940-4, 2020.
Lefebvre, W. and Goosse, H.: Analysis of the projected regional sea-ice changes in the Southern Ocean during the twenty-first century, Clim. Dynam., 30, 59–76, https://doi.org/10.1007/s00382-007-0273-6, 2008.
Lim, E. P., Hendon, H. H., and Thompson, D. W. J.: Seasonal evolution of stratosphere-troposphere coupling in the Southern Hemisphere and implications for the predictability of surface climate, J. Geophys. Res.-Atmos., 123, 12-002, https://doi.org/10.1029/2018JD029321, 2018.
Marshall, G. J.: Trends in the Southern Annular Mode from observations and reanalyses, J. Climate, 16, 4134–4143, https://doi.org/10.1175/1520-0442(2003)016<4134:TITSAM>2.0.CO;2, 2003.
Medley, B. and Thomas, E. R.: Increased snowfall over the Antarctic Ice Sheet mitigated twentieth-century sea-level rise, Nat. Clim. Change, 9, 34–39, https://doi.org/10.1038/s41558-018-0356-x, 2019.
Meehl, G. A., Arblaster, J. M., Bitz, C. M., Chung, C. T., and Teng, H.: Antarctic sea-ice expansion between 2000 and 2014 driven by tropical Pacific decadal climate variability, Nat. Geosci., 9, 590–595, https://doi.org/10.1038/ngeo2751, 2016.
Mo, K. C.: Relationships between Low-Frequency Variability in the Southern Hemisphere and Sea Surface Temperature Anomalies, J. Climate, 13, 3599–3610 https://doi.org/10.1175/1520-0442(2000)013<3599:RBLFVI>2.0.CO;2, 2000 (data available at: https://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/aao/aao.shtml#publication, last access: 15 January 2023).
NASA Ozone Watch: Antarctic MERRA-2 Wind, last updated: 3 January 2023, https://ozonewatch.gsfc.nasa.gov/meteorology/wind_2022_MERRA2_SH.html (last access: 12 August 2023), 2023a.
NASA Ozone Watch: Antarctic MERRA-2 Wind, last updated: 12 August 2023, https://ozonewatch.gsfc.nasa.gov/meteorology/temp_2023_MERRA2_SH.html (last access: 12 August 2023), 2023b.
NASA Ozone Watch:, Antarctic MERRA-2 Wind, last updated: 12 August 2023, https://ozonewatch.gsfc.nasa.gov/meteorology/SH.html (last access: 12 August 2023), 2023c.
NSIDC – National Snow and Ice Data Center. Antarctic sea ice minimum settles on record low extent again, last updated: 27 February 2023, https://nsidc.org/arcticseaicenews/2023/02/antarctic-sea-ice-minimum-settles-on-record-low-extent-again/, last access: 12 August 2023, 2023.
Parkinson, C. L.: A 40-y record reveals gradual Antarctic sea ice increases followed by decreases at rates far exceeding the rates seen in the Arctic, P. Natl Acad. Sci. USA, 116, 14414–14423, https://doi.org/10.1073/pnas.1906556116, 2019.
Polvani, L. M., Waugh, D. W., Correa, G. J. P., and Son, S-W.: Stratospheric ozone depletion: The main driver of 20th century atmospheric circulation changes in the Southern Hemisphere, J. Climate, 24, 795–812, https://doi.org/10.1175/2010JCLI3772.1, 2011.
Previdi, M. and Polvani, L. M.: Climate system response to stratospheric ozone depletion and recovery, Q. J. Roy. Meteor. Soc., 140, 2401–2419, https://doi.org/10.1002/qj.2330, 2014.
Raphael, M. N. and Handcock, M. S.: A new record minimum for Antarctic sea ice, Nat. Rev. Earth Environ., 3, 215–216, https://doi.org/10.1038/s43017-022-00281-0, 2022.
Raphael, M. N., Marshall, G. J., Turner, J., Fogt, R. L., Schneider, D., Dixon, D. A., and Hobbs, W. R.: The Amundsen sea low: variability, change, and impact on Antarctic climate, B. Am. Meteorol. Soc., 97, 111–121, https://doi.org/10.1175/BAMS-D-14-00018.1, 2016.
Reid, P. and Massom, R. A.: State of the Climate in 2014, edited by: Blunden, J. and Arndt, D. S., Spec. Suppl. B. Am. Meteorol. Soc., 96, S163–S164, https://doi.org/10.1175/BAMS-D-15-00093.1, 2015.
Solomon, S., Ivy, D. J., Kinnison, D., Mills, M. J., Neely III, R. R., and Schmidt, A.: Emergence of healing in the Antarctic ozone layer, Science, 353, 269–274, https://doi.org/10.1126/science.aae0061, 2016.
Stammerjohn, S. E., Martinson, D. G., Smith, R. C., Yuan, X., and Rind, D.: Trends in Antarctic annual sea ice retreat and advance and their relation to El Niño-Southern Oscillation and Southern Annular Mode variability, J. Geophys. Res., 113, C03S90, https://doi.org/10.1029/2007JC004269, 2008.
Thomas, E. R., Allen, C. S., Etourneau, J., King, A. C., Severi, M., Winton, V. H. L., and Peck, V. L.: Antarctic sea ice proxies from marine and ice core archives suitable for reconstructing sea ice over the past 2000 years, Geosciences, 9, 506, https://doi.org/10.3390/geosciences9120506, 2019.
Thompson, D. W., Solomon, S., Kushner, P. J., England, M. H., Grise, K. M., and Karoly, D. J.: Signatures of the Antarctic ozone hole in Southern Hemisphere surface climate change, Nat. Geosci., 4, 741–749, https://doi.org/10.1038/ngeo1296, 2011.
Thompson, D. W. J., Baldwin, M. P., and Solomon, S.: Stratosphere–troposphere coupling in the Southern Hemisphere, J. Atmos. Sci., 62, 708–715, https://doi.org/10.1175/JAS-3321.1, 2005.
Turner, J., Phillips, T., Marshall, G. J., Hosking, J. S., Pope, J. O., Bracegirdle, T. J., and Deb, P.: Unprecedented springtime retreat of Antarctic sea ice in 2016, Geophys. Res. Lett., 44, 6868–6875, https://doi.org/10.1002/2017GL073656, 2017.
Turner, J., Holmes, C., Caton Harrison, T., Phillips, T., Jena, B., Reeves-Francois, T., and Bajish, C. C.: Record low Antarctic sea ice cover in February 2022, Geophys. Res. Lett., 49, e2022GL098904, https://doi.org/10.1029/2022GL098904, 2022.
Wing, S. R., Wing, L. C., O'Connell-Milne, S. A., Barr, D., Stokes, D., Genovese, S., and Leichter, J. J.: Penguins and seals transport limiting nutrients between offshore pelagic and coastal regions of Antarctica under changing sea ice, Ecosystems, 24, 1203–1221, https://doi.org/10.1007/s10021-020-00578-5, 2021.
WMO (World Meteorological Organization): Scientific Assessment of Ozone Depletion: 2018, Global Ozone Research and Monitoring Project-Report No. 58, https://wedocs.unep.org/20.500.11822/32140 (last access: 15 January 2023), 2018.
Yang, J., Xiao, C. D., Liu, J. P., Li, S. T., and Qin, D. H.: Variability of Antarctic sea ice extent over the past 200 years, Sci. Bull., 66, 2394–2404, https://doi.org/10.1016/j.scib.2021.07.028, 2021.
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.
We investigate the response of Antarctic sea ice to year-to-year changes in the...
