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DOI	10.1007/s11629-021-6912-2
	Does polar amplification exist in Antarctic surface during the recent four decades?
	Wang Shi-meng; Xie Ai-hong; Zhu Jiang-ping
通讯作者	Xie, AH ; Zhu, JP (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China. ; Zhu, JP (通讯作者)，Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
发表日期	2021
ISSN	1672-6316
EISSN	1993-0321
起始页码	2626
结束页码	2634
卷号	18 期号:10
英文摘要	There are numerous studies on polar amplification and its influence on mid-latitude weather and climate. However, assessments on whether polar amplification occurs in Antarctica are rarely conducted. Based on the latest atmospheric reanalysis of ERA5 produced by European Centre for Medium-Range Weather Forecasts (ECMWF), we have defined the Antarctic amplification index, and calculated the trend of annual and seasonal Surface Air Temperature (SAT) mean during 1979-2019 for Antarctic Ice Sheet (AIS) and the trend mean of different meridional sectors of Antarctic sub regions including East Antarctic Ice Sheet (EAIS), West Antarctic Ice Sheet (WAIS) and Antarctic Peninsula (AP). Antarctic amplification shows regional differences and seasonal variations. Antarctica shows a slight warming with the largest magnitude in AP. The temperature anomalies indicate the least fluctuations in austral summer, and the more fluctuations in winter and spring. In austral summer, the warming trend domains EAIS and WAIS, while the cooling trend appears over AP. The zonal mean in Southern Hemisphere maintains a warming trend in the low latitudes, and fluctuates greatly in the middle and high latitudes. The strongest Antarctic amplification phenomenon occurs in spring, with the amplification index of 1.20. For AP, the amplification occurs in austral autumn, and the amplification index is 2.16. At South Pole and the surrounding regions, SAT for land only fluctuates largely and shows different trends in different seasons. The mechanism of Antarctic amplification is unclear till now, and its research suffers from the limitation of measured data. This suggests that future research needs progress in comprehensive ground observation network, remote sensing data accumulation, and high-resolution climate modeling with better representation of both atmospheric and cryospheric processes in Antarctica.
关键词	ARCTIC AMPLIFICATION CLIMATE-CHANGE IMPACTS PENINSULA
英文关键词	Antarctic amplification; Surface air temperature; Meridional Sectors; Three Antarctic sub regions
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000711477100008
来源期刊	JOURNAL OF MOUNTAIN SCIENCE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253673
作者单位	[Wang Shi-meng; Xie Ai-hong; Zhu Jiang-ping] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; [Zhu Jiang-ping] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang Shi-meng,Xie Ai-hong,Zhu Jiang-ping. Does polar amplification exist in Antarctic surface during the recent four decades?[J]. 中国科学院西北生态环境资源研究院,2021,18(10).
APA	Wang Shi-meng,Xie Ai-hong,&Zhu Jiang-ping.(2021).Does polar amplification exist in Antarctic surface during the recent four decades?.JOURNAL OF MOUNTAIN SCIENCE,18(10).
MLA	Wang Shi-meng,et al."Does polar amplification exist in Antarctic surface during the recent four decades?".JOURNAL OF MOUNTAIN SCIENCE 18.10(2021).