Long-term evolution of ocean eddy activity in a warming world

被引：65

作者：

Beech, Nathan ^{[1
]}

Rackow, Thomas ^{[2
]}

Semmler, Tido ^{[1
]}

Danilov, Sergey ^{[1
,3
]}

Wang, Qiang ^{[1
]}

Jung, Thomas ^{[1
,4
]}

机构：

[1] Helmholtz Ctr Polar & Marine Res, Alfred Wegener Inst, Bremerhaven, Germany

[2] European Ctr Medium Range Weather Forecasts, Bonn, Germany

[3] Jacobs Univ, Math & Logist, Bremen, Germany

[4] Univ Bremen, Dept Phys & Elect Engn, Bremen, Germany

来源：

NATURE CLIMATE CHANGE | 2022年 / 12卷 / 10期

关键词：

POLEWARD SHIFT; MESOSCALE VARIABILITY; AGULHAS LEAKAGE; ATLANTIC; MODEL; KUROSHIO; NORTH; CIRCULATION; TRENDS; IMPACT;

D O I：

10.1038/s41558-022-01478-3

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Mesoscale ocean eddies, an important element of the climate system, impact ocean circulation, heat uptake, gas exchange, carbon sequestration and nutrient transport. Much of what is known about ongoing changes in ocean eddy activity is based on satellite altimetry; however, the length of the altimetry record is limited, making it difficult to distinguish anthropogenic change from natural variability. Using a climate model that exploits a variable-resolution unstructured mesh in the ocean component to enhance grid resolution in eddy-rich regions, we investigate the long-term response of ocean eddy activity to anthropogenic climate change. Eddy kinetic energy is projected to shift poleward in most eddy-rich regions, to intensify in the Kuroshio Current, Brazil and Malvinas currents and Antarctic Circumpolar Current and to decrease in the Gulf Stream. Modelled changes are linked to elements of the broader climate including Atlantic meridional overturning circulation decline, intensifying Agulhas leakage and shifting Southern Hemisphere westerlies.

引用

页码：910 / +

页数：19

共 89 条

[1] Where do winds drive the Antarctic Circumpolar Current? [J].

Allison, L. C. ;

Johnson, H. L. ;

Marshall, D. P. ;

Munday, D. R. .

GEOPHYSICAL RESEARCH LETTERS, 2010, 37

[2] The deglacial history of the western tropical Atlantic as inferred from high resolution stable isotope records off northeastern Brazil [J].

Arz, HW ;

Pätzold, J ;

Wefer, G .

EARTH AND PLANETARY SCIENCE LETTERS, 1999, 167 (1-2) :105-117

[3] Impact of intensified Indian Ocean winds on mesoscale variability in the Agulhas system [J].

Backeberg, Bjoern C. ;

Penven, Pierrick ;

Rouault, Mathieu .

NATURE CLIMATE CHANGE, 2012, 2 (08) :608-612

[4] Fate of the Atlantic Meridional Overturning Circulation: Strong decline under continued warming and Greenland melting [J].

Bakker, P. ;

Schmittner, A. ;

Lenaerts, J. T. M. ;

Abe-Ouchi, A. ;

Bi, D. ;

van den Broeke, M. R. ;

Chan, W. -L. ;

Hu, A. ;

Beadling, R. L. ;

Marsland, S. J. ;

Mernild, S. H. ;

Saenko, O. A. ;

Swingedouw, D. ;

Sullivan, A. ;

Yin, J. .

GEOPHYSICAL RESEARCH LETTERS, 2016, 43 (23) :12252-12260

[5] Migration of the subtropical front as a modulator of glacial climate [J].

Bard, Edouard ;

Rickaby, Rosalind E. M. .

NATURE, 2009, 460 (7253) :380-U93

[6]

Beech N., 2022, N BEECH AWICM CMIP6, DOI [10.5281/zenodo.7064462, DOI 10.5281/ZENODO.7064462]

[7] Agulhas leakage dynamics affects decadal variability in Atlantic overturning circulation [J].

Biastoch, A. ;

Boening, C. W. ;

Lutjeharms, J. R. E. .

NATURE, 2008, 456 (7221) :489-492

[8] Increase in Agulhas leakage due to poleward shift of Southern Hemisphere westerlies [J].

Biastoch, A. ;

Boening, C. W. ;

Schwarzkopf, F. U. ;

Lutjeharms, J. R. E. .

NATURE, 2009, 462 (7272) :495-U188

[9] Anthropogenic impact on Agulhas leakage [J].

Biastoch, Arne ;

Boening, Claus W. .

GEOPHYSICAL RESEARCH LETTERS, 2013, 40 (06) :1138-1143

[10] Observed fingerprint of a weakening Atlantic Ocean overturning circulation [J].

Caesar, L. ;

Rahmstorf, S. ;

Robinson, A. ;

Feulner, G. ;

Saba, V. .

NATURE, 2018, 556 (7700) :191-+

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