| DOI: | 10.1002/2014GL060613
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| 论文题名: | Rapid subsurface warming and circulation changes of Antarctic coastal waters by poleward shifting winds |
| 作者: | Spence P.; Griffies S.M.; England M.H.; Hogg A.M.; Saenko O.A.; Jourdain N.C.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10009
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| EISSN: | 1944-9740
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| 出版年: | 2014
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| 卷: | 41, 期:13 | | 起始页码: | 4601
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| 结束页码: | 4610
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| 语种: | 英语
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| 英文关键词: | Antarctic Coast
; coastal currents
; Southern Ocean
; warming
; winds
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| Scopus关键词: | Computer simulation
; Heat flux
; Ocean currents
; Sea level
; Antarctic coasts
; Antarctic Peninsula
; Anthropogenic forcing
; Coastal currents
; Global sea level rise
; Southern Hemisphere
; Southern ocean
; warming
; Wind
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| 英文摘要: | The southern hemisphere westerly winds have been strengthening and shifting poleward since the 1950s. This wind trend is projected to persist under continued anthropogenic forcing, but the impact of the changing winds on Antarctic coastal heat distribution remains poorly understood. Here we show that a poleward wind shift at the latitudes of the Antarctic Peninsula can produce an intense warming of subsurface coastal waters that exceeds 2°C at 200-700 m depth. The model simulated warming results from a rapid advective heat flux induced by weakened near-shore Ekman pumping and is associated with weakened coastal currents. This analysis shows that anthropogenically induced wind changes can dramatically increase the temperature of ocean water at ice sheet grounding lines and at the base of floating ice shelves around Antarctica, with potentially significant ramifications for global sea level rise. Key Points Twenty-first century winds drive Antarctic coastal warming and circulation changes The winds cause coastal isotherms to shoal and weaken coastal currents Fine model grid resolution is required to represent the coastal Ekman dynamics ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904083536&doi=10.1002%2f2014GL060613&partnerID=40&md5=08f06b1e81a30307822e9e969215211c
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/7273
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| Appears in Collections: | 气候减缓与适应
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作者单位: | ARC Centre of Excellence for Climate System Science, University of New South Wales, Sydney NSW, Australia
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| Recommended Citation: | |
Spence P.,Griffies S.M.,England M.H.,et al. Rapid subsurface warming and circulation changes of Antarctic coastal waters by poleward shifting winds[J]. Geophysical Research Letters,2014-01-01,41(13).
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