| DOI: | 10.3354/cr01436
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| Scopus记录号: | 2-s2.0-85020458406
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| 论文题名: | Antarctic sea ice change based on a new sea ice dataset from 1992 to 2008 |
| 作者: | He L.-Y.; Ke C.-Q.; Zhou X.; Cui Y.-N.; Shan L.
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| 刊名: | Climate Research
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| ISSN: | 0936577X
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| 出版年: | 2016
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| 卷: | 71, 期:2 | | 起始页码: | 155
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| 结束页码: | 169
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| 语种: | 英语
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| 英文关键词: | Antarctica
; Sea ice area
; Sea ice extent
; Sea surface temperature
; SICCI algorithm
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| Scopus关键词: | algorithm
; climate modeling
; concentration (composition)
; data set
; ice cover
; sea ice
; sea surface temperature
; seasonal variation
; spatiotemporal analysis
; Amundsen Sea
; Antarctic Ice Sheet
; Antarctica
; Bellingshausen Sea
; Indian Ocean
; Pacific Ocean
; Ross Sea
; Southern Ocean
; Weddell Sea
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| 英文摘要: | The sea ice concentration dataset (covering the period 1992-2008) used in this study is a new dataset based on the Sea Ice Climate Change Initiative (SICCI) algorithm. We investigate whether the SICCI dataset is on a par with other datasets for studying sea ice cover changes in the Southern Ocean. We then examine spatiotemporal variations in sea ice derived from the SICCI dataset over the Southern Ocean, and analyse relationships of sea ice with sea surface temperature (SST). The results indicate that there is no significant difference between the SICCI dataset and the NASA Team dataset, and therefore the former can also be used for studying sea ice changes. Both sea ice extent (SIE) and sea ice area (SIA) derived from the SICCI dataset over the Southern Ocean increased slightly from 1992 to 2008, at rates of (17.75 ± 11.50) × 103 and (17.37 ± 9.51) ?× 103 km2 yr-1, respectively. Antarctic sea ice has significant seasonal variations; all seasonally averaged SIE and SIA show an increase, with spring showing the largest positive changing rate. The Weddell Sea, Ross Sea, and Indian Ocean have positive yearly changing rates in SIE and SIA, while the Bellingshausen/Amundsen seas and western Pacific Ocean have negative yearly changing rates. However, overall sea ice over the Southern Ocean has a slight positive trend, which is the same as the sea ice change pattern derived from the NASA Team dataset. This indicates that the contributions to the change in sea ice over the whole Southern Ocean due to the Weddell Sea, Ross Sea, and Indian Ocean dominate over those by the Bellingshausen/Amundsen seas and western Pacific Ocean. Further analysis shows that both SIE and SIA are negatively correlated with SST in the Southern Ocean or each of the 5 longitudinal sectors, and sea ice is more sensitive to SST in spring and autumn. © Inter-Research 2016. |
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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/116356
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| Appears in Collections: | 气候减缓与适应
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| Recommended Citation: | |
He L.-Y.,Ke C.-Q.,Zhou X.,et al. Antarctic sea ice change based on a new sea ice dataset from 1992 to 2008[J]. Climate Research,2016-01-01,71(2)
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