气候变化领域集成服务门户(CCPortal): An Assessment of ERA5 Reanalysis for Antarctic Near-Surface Air Temperature

CCPortal

DOI	10.3390/atmos12020217
	An Assessment of ERA5 Reanalysis for Antarctic Near-Surface Air Temperature
	Zhu, Jiangping; Xie, Aihong; Qin, Xiang; Wang, Yetang; Xu, Bing; Wang, Yicheng
通讯作者	Xie, AH ; Qin, X (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China.
发表日期	2021
EISSN	2073-4433
卷号	12 期号:2
英文摘要	The European Center for Medium-Range Weather Forecasts (ECMWF) released its latest reanalysis dataset named ERA5 in 2017. To assess the performance of ERA5 in Antarctica, we compare the near-surface temperature data from ERA5 and ERA-Interim with the measured data from 41 weather stations. ERA5 has a strong linear relationship with monthly observations, and the statistical significant correlation coefficients (p < 0.05) are higher than 0.95 at all stations selected. The performance of ERA5 shows regional differences, and the correlations are high in West Antarctica and low in East Antarctica. Compared with ERA5, ERA-Interim has a slightly higher linear relationship with observations in the Antarctic Peninsula. ERA5 agrees well with the temperature observations in austral spring, with significant correlation coefficients higher than 0.90 and bias lower than 0.70 degrees C. The temperature trend from ERA5 is consistent with that from observations, in which a cooling trend dominates East Antarctica and West Antarctica, while a warming trend exists in the Antarctic Peninsula except during austral summer. Generally, ERA5 can effectively represent the temperature changes in Antarctica and its three subregions. Although ERA5 has bias, ERA5 can play an important role as a powerful tool to explore the climate change in Antarctica with sparse in situ observations.
关键词	CLIMATE-CHANGE INTERIM PENINSULA ERA-40 MELT
英文关键词	ERA5; ERA-Interim; Antarctica; air temperature; in situ observations
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000622145700001
来源期刊	ATMOSPHERE
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/253745
作者单位	[Zhu, Jiangping; Xie, Aihong; Qin, Xiang; Xu, Bing] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; [Zhu, Jiangping; Xu, Bing] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wang, Yetang] Shandong Normal Univ, Coll Geog & Environm, Jinan 250014, Peoples R China; [Wang, Yicheng] Lanzhou Cent Meteorol Observ, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Jiangping,Xie, Aihong,Qin, Xiang,et al. An Assessment of ERA5 Reanalysis for Antarctic Near-Surface Air Temperature[J]. 中国科学院西北生态环境资源研究院,2021,12(2).
APA	Zhu, Jiangping,Xie, Aihong,Qin, Xiang,Wang, Yetang,Xu, Bing,&Wang, Yicheng.(2021).An Assessment of ERA5 Reanalysis for Antarctic Near-Surface Air Temperature.ATMOSPHERE,12(2).
MLA	Zhu, Jiangping,et al."An Assessment of ERA5 Reanalysis for Antarctic Near-Surface Air Temperature".ATMOSPHERE 12.2(2021).