.png)
.png)
.png)
Email this article 
Influence of sea surface temperature in the tropics on the Antarctic sea ice under global warming
https://doi.org/10.15356/2076-67342019-2-412
Abstract
Sea ice fields in the Antarctic, in contrast to the Arctic ones, did not show a reduction in observed global warming, whereas the global climate models indicate its certain decrease. The purpose of the study is to explain this climatic phenomenon on the basis of the idea of joint dynamics of oceanic structures in the Southern Ocean – the Antarctic polar front and the margin of the maximum distribution of sea ice. We used data from the ERA/Interim and HadISST as well as the database on the sea ice for 1979–2017. Relationship between the SST-anomalies in low latitudes of the Northern hemisphere and positions of the Antarctic polar front and maximum sea-ice extent was investigated. It was found that locations of these structures changed under the influence of the SST anomalies in low latitudes. The results obtained confirm existence of the opposite trends in changes in the sea ice extent in the Arctic and Antarctic under the influence of the SST anomalies in the central North Atlantic Ocean. When positive, the anomalies cause a shift of the Intertropical Convergence Zone (ITCZ) and the Hadley circulation to the North, while, on the contrary, the negative anomaly promotes the corresponding shift of the Antarctic polar front, followed by the boundary of sea ice.
About the Authors
G. V. AlekseevRussian Federation
St. Petersburg
N. I. Glok
Russian Federation
St. Petersburg
A. E. Vyasilova
Russian Federation
St. Petersburg
N. E. Ivanov
Russian Federation
St. Petersburg
N. E. Kharlanenkova
Russian Federation
St. Petersburg
A. V. Smirnov
Russian Federation
St. Petersburg
References
1. Su Z. Preconditioning of Antarctic maximum sea ice extent by upper ocean stratification on a seasonal timescale. Geophys. Research Letters. 2017, 44: 6307–6315.
2. Treshnikov A.F., Alekseev G.V., Sarukhanyan E.I., Smirnov N.P. Water circulation in the Southern Ocean. Polar Geography and Geology. 1980, 4 (1): 21–35.
3. Holland P. R. The seasonality of Antarctic sea ice trends. Geophys. Research Letters. 2014, 41: 4230–4237. doi: 10.1002/2014GL060172.
4. Stammerjohn S., Massom R., Rind D., Martinson D. Regions of rapid sea ice change: An interhemispheric seasonal comparison. Geophys. Research Letters. 2012, 39: L06501. doi: 10.1029/2012GL050874.
5. Turner J., Bracegirdle T.J., Phillips T., Marshall G.J., Hosking J.S. An Initial Assessment of Antarctic Sea Ice Extent in the CMIP5 Models. Journ. of Climate. 2013, 26: 1473–1484. doi: 10.1175/JCLI-D-12-00068.1.
6. Rosenblum E., Eisenman I. Sea ice trends in climate models only accurate in runs with biased global warming. Journ. of Climate. 2017, 30 (16): 6265–6278.
7. Haumann F.A., Notz D., Schmidt H. Anthropogenic influence on recent circulation-driven Antarctic sea ice changes. Geophys. Research Letters. 2014, 41: 8429– 8437. doi: 10.1002/2014GL061659.
8. Yuan X., Li C. Climate modes in southern high latitudes and their impacts on Antarctic sea ice. Journ. of Geophys. Research. 2008, 113: C06S91. doi: 10.1029/2006JC004067.
9. Marshall G.J. Trends in the Southern Annular Mode from Observations and Reanalyses. Journ. of Climate. 2003, 16: 4134–4143.
10. Parkinson C.L., Cavalieri D.J. Antarctic sea ice variability and trends, 1979–2010. Cryosphere. 2012, 6: 871–880. doi: 10.5194/tc-6-871-2012.
11. Kwok R., Comiso J., Lee T., Holland P. Linked trends in the South Pacific sea ice edge and Southern Oscillation Index. Geophys. Research Letters. 2016, 43: 10,295–10,302. doi: 10.1002/2016GL070655.
12. Smith D.M., Dunstone N.J., Scaife A.A., Fiedler E.K., Copsey D., Hardiman S.C. Atmospheric Response to Arctic and Antarctic Sea Ice: The Importance of Ocean– Atmosphere Coupling and the Background State. Journ. of Climate. 2017, 30: 4547–4564.
13. Latif M., Torge M., Park W. Southern Ocean Sector Centennial Climate Variability and Recent Decadal Trends. Journ. of Climate. 2013, 26: 7767–7782.
14. Armor K.C., Marshall J., Scott J.R., Donohoe A., Newsom E.R. Southern Ocean warming delayed by circumpolar upwelling and equatorward transport. Nature Geoscience. 2016, 9: 554 –549. doi: 10.1038/ngeo2731.
15. Li X., Holland D. M., Gerber E. P., Yoo C. Impacts of the north and tropical Atlantic Ocean on the Antarctic Peninsula and sea ice. Nature. 2014, 505 (7484): 538–542.
16. Bintanja R., Oldenborgh G.J., Drijfhout S.S., Wouters B., Katsman C.A. Important role for ocean warming and increased ice-shelf melt in Antarctic sea-ice expansion. Nature Geoscience. 2013, 6: 376–379. doi:10.1038/ngeo1767.
17. Zhang J. Increasing Antarctic sea ice under warming atmospheric and oceanic conditions. Journ. of Climate. 2007, 20 (11): 2515–2529.
18. Alekseev G.V., Kuzmina S.I., Glok N.I., Vyazilova A.E., Ivanov N.E., Smirnov A.V. Influence of Atlantic on the warming and reduction of sea ice in the Arctic. Led i Sneg. Ice and Snow. 2017, 57 (3): 381–390. doi: 10.15356/2076-6734-2017-3-381-390. [In Russian].
19. Solomina O.N. Holocene glacier variations and their potential orbital, solar, volcanic and anthropogenic forcings. Led i Sneg. Ice and Snow. 2014, 54 (3): 81– 90. [In Russian].
Supplementary files
For citation: Alekseev G.V., Glok N.I., Vyasilova A.E., Ivanov N.E., Kharlanenkova N.E., Smirnov A.V. Influence of sea surface temperature in the tropics on the Antarctic sea ice under global warming. Ice and Snow. 2019;59(2):213-221. https://doi.org/10.15356/2076-67342019-2-412
Refbacks
- There are currently no refbacks.
ISSN 2076-6734 (Print)
ISSN 2412-3765 (Online)