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| DOI | 10.1038/s41561-022-00938-x |
| Antarctic ice-shelf advance driven by anomalous atmospheric and sea-ice circulation | |
| Christie F.D.W.; Benham T.J.; Batchelor C.L.; Rack W.; Montelli A.; Dowdeswell J.A. | |
| 发表日期 | 2022 |
| ISSN | 1752-0894 |
| 起始页码 | 356 |
| 结束页码 | 362 |
| 卷号 | 15期号:5 |
| 英文摘要 | The disintegration of the eastern Antarctic Peninsula’s Larsen A and B ice shelves has been attributed to atmosphere and ocean warming, and increased mass losses from the glaciers once restrained by these ice shelves have increased Antarctica’s total contribution to sea-level rise. Abrupt recessions in ice-shelf frontal position presaged the break-up of Larsen A and B, yet, in the ~20 years since these events, documented knowledge of frontal change along the entire ~1,400-km-long eastern Antarctic Peninsula is limited. Here, we show that 85% of the seaward ice-shelf perimeter fringing this coastline underwent uninterrupted advance between the early 2000s and 2019, in contrast to the two previous decades. We attribute this advance to enhanced ocean-wave dampening, ice-shelf buttressing and the absence of sea-surface slope-induced gravitational ice-shelf flow. These phenomena were, in turn, enabled by increased near-shore sea ice driven by a Weddell Sea-wide intensification of cyclonic surface winds around 2002. Collectively, our observations demonstrate that sea-ice change can either safeguard from, or set in motion, the final rifting and calving of even large Antarctic ice shelves. © 2022, The Author(s), under exclusive licence to Springer Nature Limited. |
| 语种 | 英语 |
| scopus关键词 | atmosphere; circulation; coast; ice shelf; sea ice; Antarctic Peninsula; Antarctica; Southern Ocean; Weddell Sea; West Antarctica |
| 来源期刊 | Nature Geoscience
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/262206 |
| 作者单位 | Scott Polar Research Institute, University of Cambridge, Cambridge, United Kingdom |
| 推荐引用方式 GB/T 7714 | Christie F.D.W.； Benham T.J.； Batchelor C.L.； Rack W.； Montelli A.； Dowdeswell J.A.. Antarctic ice-shelf advance driven by anomalous atmospheric and sea-ice circulation[J],2022,15(5). |
| APA | Christie F.D.W.； Benham T.J.； Batchelor C.L.； Rack W.； Montelli A.； Dowdeswell J.A..(2022).Antarctic ice-shelf advance driven by anomalous atmospheric and sea-ice circulation.Nature Geoscience,15(5). |
| MLA | Christie F.D.W.； Benham T.J.； Batchelor C.L.； Rack W.； Montelli A.； Dowdeswell J.A.."Antarctic ice-shelf advance driven by anomalous atmospheric and sea-ice circulation".Nature Geoscience 15.5(2022). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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