Antarctic sea ice change based on a new sea ice dataset from 1992 to 2008
Antarctic sea ice change based on a new sea ice dataset from 1992 to 2008
复制标题
基于1992年至2008年新海冰数据集的南极海冰变化
DOI：
10.3354/cr01436
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发表时间：
2016-12
期刊：
影响因子：
1.1
通讯作者：
Shan Liang
中科院分区：
文献类型：
--
作者：
He Li-Yin;Ke Chang-Qing;Zhou Xiaobing;Cui Ya-Nan;Shan Liang
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) × 10^3 and (17.37 ± 9.51) × 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.
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DOI：
10.1002/joc.965
发表时间：
2004-01
期刊：
International Journal of Climatology
影响因子：
--
作者：
J. Turner
通讯作者：
J. Turner
影响因子：
13.5
作者：
Worby, AP;Comiso, JC
通讯作者：
Comiso, JC
1982-2009年南极海冰春夏季反照率变化
影响因子：
6.7
作者：
Shao Zhude;Ke Changqing
通讯作者：
Ke Changqing
DOI：
10.1177/030913339602000401
发表时间：
1996-12
期刊：
Progress in Physical Geography
影响因子：
--
作者：
Edward Hanna
通讯作者：
Edward Hanna
影响因子：
5.2
作者：
Holland, Paul R.
通讯作者：
Holland, Paul R.