Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.3354/cr01436 |
Antarctic sea ice change based on a new sea ice dataset from 1992 to 2008 | |
He, Li-Yin1,2,3; Ke, Chang-Qing3,4,5; Zhou, Xiaobing6; Cui, Ya-Nan1; Shan, Liang1 | |
2017 | |
发表期刊 | CLIMATE RESEARCH |
ISSN | 0936-577X |
EISSN | 1616-1572 |
出版年 | 2017 |
卷号 | 71期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
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) x 10(3) and (17.37 +/- 9.51) x 10(3) km(2) 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. |
英文关键词 | SICCI algorithm Sea ice extent Sea ice area Sea surface temperature Antarctica |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000394182500005 |
WOS关键词 | TRENDS ; VARIABILITY ; SATELLITE ; EXTENT ; CIRCULATION ; ALGORITHMS ; ATMOSPHERE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/38616 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China; 2.CALTECH, Div Geol & Planetary Sci, 1200 East Calif Blvd, Pasadena, CA 91125 USA; 3.Nanjing Univ, Jiangsu Prov Key Lab Geog Informat Sci & Technol, Nanjing 210023, Jiangsu, Peoples R China; 4.Nanjing Univ, Collaborat Innovat Ctr South China Sea Studies, Nanjing 210023, Jiangsu, Peoples R China; 5.Nanjing Univ, Collaborat Innovat Ctr Novel Software Technol & I, Nanjing 210023, Jiangsu, Peoples R China; 6.Univ Montana, Montana Tech, Dept Geophys Engn, 1300 West Pk St, Butte, MT 59701 USA |
推荐引用方式 GB/T 7714 | He, Li-Yin,Ke, Chang-Qing,Zhou, Xiaobing,et al. Antarctic sea ice change based on a new sea ice dataset from 1992 to 2008[J]. CLIMATE RESEARCH,2017,71(2). |
APA | He, Li-Yin,Ke, Chang-Qing,Zhou, Xiaobing,Cui, Ya-Nan,&Shan, Liang.(2017).Antarctic sea ice change based on a new sea ice dataset from 1992 to 2008.CLIMATE RESEARCH,71(2). |
MLA | He, Li-Yin,et al."Antarctic sea ice change based on a new sea ice dataset from 1992 to 2008".CLIMATE RESEARCH 71.2(2017). |
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