| DOI: | 10.1002/grl.50715
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| 论文题名: | Observed variations in multidecadal Antarctic sea ice trends during 1979-2012 |
| 作者: | Simpkins G.R.; Ciasto L.M.; England M.H.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8785
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| EISSN: | 1944-8516
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| 出版年: | 2013
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| 卷: | 40, 期:14 | | 起始页码: | 3643
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| 结束页码: | 3648
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| 语种: | 英语
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| 英文关键词: | Antarctic
; Antarctic sea ice
; sea ice
; sea ice trends
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| Scopus关键词: | Antarctic
; Antarctic sea ice
; Decadal timescale
; Ice expansions
; Ice trends
; Satellite-derived observations
; Spatial structure
; Spatio-temporal sensitivity
; Earth sciences
; Geophysics
; Sea ice
; decadal variation
; magnitude
; observational method
; sea ice
; spatiotemporal analysis
; Antarctica
; Bellingshausen Sea
; Southern Ocean
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| 英文摘要: | The spatiotemporal sensitivity of Antarctic sea ice season length trends are examined using satellite-derived observations over 1979-2012. While the large-scale spatial structure of multidecadal trends has varied little during the satellite record, the magnitude of trends has undergone substantial weakening over the past decade. This weakening is particularly evident in the Ross and Bellingshausen Seas, where a ∼25-50% reduction is observed when comparing trends calculated over 1979-2012 and 1979-1999. Multidecadal trends in the Bellingshausen Sea are found to be dominated by variability over subdecadal time scales, particularly the rapid decline in season length observed between 1979 and 1989. In fact, virtually no trend is detectable when the first decade is excluded from trend calculations. In contrast, the sea ice expansion in the Ross Sea is less influenced by shorter-term variability, with trends shown to be more consistent at decadal time scales and beyond. Understanding these contrasting characteristics have implications for sea ice trend attribution. © 2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880374113&doi=10.1002%2fgrl.50715&partnerID=40&md5=3e01cd1448c6c125f42b8802bc19fb22
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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/6049
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Climate Change Research Centre, University of New South Wales, Sydney, NSW 2052, Australia
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| Recommended Citation: | |
Simpkins G.R.,Ciasto L.M.,England M.H.. Observed variations in multidecadal Antarctic sea ice trends during 1979-2012[J]. Geophysical Research Letters,2013-01-01,40(14).
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