Modulation of the Seasonal Cycle of Antarctic Sea Ice Extent Related to the Southern Annular Mode

doi:10.1002/2017GL074319

GSTDTAP > 气候变化

DOI	10.1002/2017GL074319
	Modulation of the Seasonal Cycle of Antarctic Sea Ice Extent Related to the Southern Annular Mode
	Doddridge, Edward W.; Marshall, John
	2017-10-16
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2017
卷号	44 期号:19
文章类型	Article
语种	英语
国家	USA
英文摘要	Through analysis of remotely sensed sea surface temperature (SST) and sea ice concentration data, we investigate the impact of winds related to the Southern Annular Mode (SAM) on sea ice extent around Antarctica. We show that positive SAM anomalies in the austral summer are associated with anomalously cold SSTs that persist and lead to anomalous ice growth in the following autumn, while negative SAM anomalies precede warm SSTs and a reduction in sea ice extent during autumn. The largest effect occurs in April, when a unit change in the detrended summertime SAM is followed by a 1.8 +/- 0.6 x 10(5) km(2) change in detrended sea ice extent. We find no evidence that sea ice extent anomalies related to the summertime SAM affect the wintertime sea ice extent maximum. Our analysis shows that the wind anomalies related to the negative SAM during the 2016/2017 austral summer contributed to the record minimum Antarctic sea ice extent observed in March 2017.
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000413921300028
WOS关键词	TRANSIENT-RESPONSE ; OZONE DEPLETION ; SURFACE CLIMATE ; TRENDS ; OCEAN ; VARIABILITY ; HEMISPHERE
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
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/25606
专题	气候变化
作者单位	MIT, Earth Atmospher & Planetary Sci, 77 Massachusetts Ave, Cambridge, MA 02139 USA
推荐引用方式 GB/T 7714	Doddridge, Edward W.,Marshall, John. Modulation of the Seasonal Cycle of Antarctic Sea Ice Extent Related to the Southern Annular Mode[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(19).
APA	Doddridge, Edward W.,&Marshall, John.(2017).Modulation of the Seasonal Cycle of Antarctic Sea Ice Extent Related to the Southern Annular Mode.GEOPHYSICAL RESEARCH LETTERS,44(19).
MLA	Doddridge, Edward W.,et al."Modulation of the Seasonal Cycle of Antarctic Sea Ice Extent Related to the Southern Annular Mode".GEOPHYSICAL RESEARCH LETTERS 44.19(2017).