气候变化领域集成服务门户(CCPortal): Assessment of air temperatures from different meteorological reanalyses for the East Antarctic region between Zhongshan and Dome A

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DOI	10.1007/s11430-013-4684-4
	Assessment of air temperatures from different meteorological reanalyses for the East Antarctic region between Zhongshan and Dome A
	Xie AiHong; Allison, Ian; Xiao CunDe; Wang ShiMeng; Ren JiaWen; Qin DaHe
发表日期	2014
ISSN	1674-7313
起始页码	1538
结束页码	1550
卷号	57 期号:7
英文摘要	The accuracy of daily mean 2 meter air temperatures from five reanalyses are assessed against in-situ observations from Automatic Weather Stations in East Antarctica for 2005 to 2008. The five reanalyses all explain more than 70% of the average variance, and have annual root mean square errors (RMSE) between 3.4 and 6.9 degrees C. The NOAA reanalyses, NCEP-1, NCEP-2 and 20CRv2, have cool biases of 2.5, 1.4 and 1.5 degrees C, respectively. The ERA Interim and JCDAS reanalyses have warm biases of 1.7 and 2.0 degrees C. All reanalyses generally perform better in the austral spring and worse in winter and autumn. They also show the best performance at an inland plateau site at 2800 m elevation, but are worst at Dome A, the summit of the East Antarctic ice sheet. In general, ERA Interim is superior to the other reanalyses, probably because of its 4D assimilation scheme. The three NOAA reanalyses perform worst; Their assimilation scheme is more constrained by limited observations and 20CRv2 has less input data, assimilating only surface pressure observations. Despite deficiencies and limitations, the reanalyses are still powerful tools for climate studies in the Antarctic region. However, more in-situ observations are required, especially from the vast interior of Antarctica.
英文关键词	East Antarctica; reanalysis data; surface temperature; Zhongshan-Dome A; Automatic Weather stations (AWS)
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
来源期刊	SCIENCE CHINA-EARTH SCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158590
作者单位	Xie, AH (corresponding author), Chinese Acad Sci, State Key Lab Colospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China.
推荐引用方式 GB/T 7714	Xie AiHong,Allison, Ian,Xiao CunDe,et al. Assessment of air temperatures from different meteorological reanalyses for the East Antarctic region between Zhongshan and Dome A[J],2014,57(7).
APA	Xie AiHong,Allison, Ian,Xiao CunDe,Wang ShiMeng,Ren JiaWen,&Qin DaHe.(2014).Assessment of air temperatures from different meteorological reanalyses for the East Antarctic region between Zhongshan and Dome A.SCIENCE CHINA-EARTH SCIENCES,57(7).
MLA	Xie AiHong,et al."Assessment of air temperatures from different meteorological reanalyses for the East Antarctic region between Zhongshan and Dome A".SCIENCE CHINA-EARTH SCIENCES 57.7(2014).