Slowdown of Antarctic Bottom Water export driven by climatic wind and sea-ice changes
Slowdown of Antarctic Bottom Water export driven by climatic wind and sea-ice changes
复制标题
气候风和海冰变化导致南极底层水出口放缓
DOI:
10.1038/s41558-023-01695-4
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发表时间:
2023
影响因子:
30.7
通讯作者:
Zhou S
中科院分区:
文献类型:
--
作者:
Zhou S
Antarctic Bottom Water (AABW) is pivotal for oceanic heat and carbon sequestrations on multidecadal to millennial timescales. The Weddell Sea contributes nearly a half of global AABW through Weddell Sea Deep Water and denser underlying Weddell Sea Bottom Water that form on the continental shelves via sea-ice production. Here we report an observed 30% reduction of Weddell Sea Bottom Water volume since 1992, with the largest decrease in the densest classes. This is probably driven by a multidecadal reduction in dense-water production over southern continental shelf associated with a >40% decline in the sea-ice formation rate. The ice production decrease is driven by northerly wind trend, related to a phase transition of the Interdecadal Pacific Oscillation since the early 1990s, superposed by Amundsen Sea Low intrinsic variability. These results reveal key influences on exported AABW to the Atlantic abyss and their sensitivity to large-scale, multidecadal climate variability.
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影响因子:
16.6
作者:
Hattermann T;Nicholls KW;Hellmer HH;Davis PED;Janout MA;Østerhus S;Schlosser E;Rohardt G;Kanzow T
通讯作者:
Kanzow T
DOI:
10.31223/x5dg67
发表时间:
2022
期刊:
--
影响因子:
--
作者:
Akhoudas C
通讯作者:
Akhoudas C
DOI:
10.1594/pangaea.856844
发表时间:
2016
期刊:
Proceedings of the National Academy of Sciences
影响因子:
--
作者:
J. Schaffer;R. Timmermann
通讯作者:
R. Timmermann
影响因子:
30.7
作者:
N. Bindoff;W. Hobbs
通讯作者:
W. Hobbs
影响因子:
4.1
作者:
E. Fahrbach;G. Rohardt
通讯作者:
G. Rohardt