Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL094871 |
Interannual SAM modulation of Antarctic sea ice extent does not account for its long-term trends, pointing to a limited role for ozone depletion | |
L.M. Polvani; A. Banerjee; R. Chemke; E.W. Doddridge; D. Ferreira; A. Gnanadesikan; M.A. Holland; Y. Kostov; J. Marshall; W.J.M. Seviour; S. Solomon; D.W. Waugh | |
2021-10-13 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | The expansion of Antarctic sea ice since 1979 in the presence of increasing greenhouse gases remains one of the most puzzling features of current climate change. Some studies have proposed that the formation of the ozone hole, via the Southern Annular Mode, might explain that expansion, and a recent study highlighted a robust causal link between summertime Southern Annular Mode (SAM) anomalies and sea ice anomalies in the subsequent autumn. Here we show that many models are able to capture this relationship between the SAM and sea ice, but also emphasize that the SAM only explains a small fraction of the year-to-year variability. Finally, examining multidecadal trends, in models and observations, we confirm the findings of several previous studies and conclude that the SAM – and thus the ozone hole – are not the primary drivers of the sea ice expansion around Antarctica in recent decades. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/340084 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | L.M. Polvani,A. Banerjee,R. Chemke,et al. Interannual SAM modulation of Antarctic sea ice extent does not account for its long-term trends, pointing to a limited role for ozone depletion[J]. Geophysical Research Letters,2021. |
APA | L.M. Polvani.,A. Banerjee.,R. Chemke.,E.W. Doddridge.,D. Ferreira.,...&D.W. Waugh.(2021).Interannual SAM modulation of Antarctic sea ice extent does not account for its long-term trends, pointing to a limited role for ozone depletion.Geophysical Research Letters. |
MLA | L.M. Polvani,et al."Interannual SAM modulation of Antarctic sea ice extent does not account for its long-term trends, pointing to a limited role for ozone depletion".Geophysical Research Letters (2021). |
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