Evaluation of Spatial and Temporal Performances of ERA-Interim Precipitation and Temperature in Mainland China

doi:10.1175/JCLI-D-17-0212.1

	Evaluation of Spatial and Temporal Performances of ERA-Interim Precipitation and Temperature in Mainland China
	Liu, Zhengjia 1,2; Liu, Yansui 1,2; Wang, Sisi 1,2; Yang, Xiujing 3; Wang, Lunche 4; Baig, Muhammad Hasan Ali 5; Chi, Wenfeng 6; Wang, Zhaosheng 7
刊名	JOURNAL OF CLIMATE
	2018-06-01
卷号	31 期号:11 页码:4347-4365
ISSN号	0894-8755
DOI	10.1175/JCLI-D-17-0212.1
通讯作者	Liu, Yansui(liuys@igsnrr.ac.cn)
英文摘要	ERA-Interim has been widely considered as a valid proxy for observations at global and regional scales. However, the verifications of ERA-Interim precipitation and temperature in mainland China have been rarely conducted, especially in the spatial and long-term performances. Therefore, in this study, we employed the interpolated ground station (STA) data to evaluate the spatial and temporal patterns and trends of ERA-Interim precipitation and temperature during 1980-2012. The results showed that relatively weaker performances were observed in ERA-Interim precipitation, with the skill score (S index) ranging from 0.41 to 0.50. Interannual ERA-Interim precipitation presented comparable trends with STA precipitation at the annual and seasonal scales. Spatial patterns of empirical orthogonal function (EOF) modes and corresponding principal components were evidently different between annual ERA-Interim and STA precipitation. For temperature, annual and seasonal patterns of ERA-Interim data were in good consistency with those of STA over China with the S index ranging from 0.59 to 0.70. Yet interannual STA temperature recorded stronger warming trends (from 0.37K decade(-1) of wintertime to 0.53 Kdecade(-1) of springtime) at the annual and seasonal scales compared to corresponding periods for ERA-Interim temperature (from 0.03Kdecade 21 of wintertime to 0.25Kdecade(-1) of summertime). Overall, ERA-Interim precipitation and temperature had good agreement with STA data in east China with lower elevation (< 1000m above sea level), but good agreements were not observed in west China with higher elevation. The findings suggest that caution should be paid when using ERA-Interim precipitation and temperature in areas with complex orography.
资助项目	National Natural Science Foundation of China[41601582] ; National Key Research and Development Program of China[2017YFC0504701]
WOS关键词	TIBETAN PLATEAU ; GLOBAL PRECIPITATION ; REANALYSIS DATA ; EXTREME PRECIPITATION ; ELEVATION CORRECTION ; MAXIMUM TEMPERATURE ; NCEP-CFSR ; EAST-ASIA ; PROJECT ; DATASETS
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER METEOROLOGICAL SOC
WOS记录号	WOS:000431418200001
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/55039]
专题	中国科学院地理科学与资源研究所
通讯作者	Liu, Yansui
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Temperate East Asia, Beijing, Peoples R China 4.China Univ Geosci, Sch Earth Sci, Wuhan, Hubei, Peoples R China 5.Arid Agr Univ Rawalpindi, Inst Geoinformat & Earth Observat, Rawalpindi, Pakistan 6.Inner Mongolia Univ Finance & Econ, Resources & Environm Econ Coll, Hohhot, Peoples R China 7.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Liu, Zhengjia,Liu, Yansui,Wang, Sisi,et al. Evaluation of Spatial and Temporal Performances of ERA-Interim Precipitation and Temperature in Mainland China[J]. JOURNAL OF CLIMATE,2018,31(11):4347-4365.
APA	Liu, Zhengjia.,Liu, Yansui.,Wang, Sisi.,Yang, Xiujing.,Wang, Lunche.,...&Wang, Zhaosheng.(2018).Evaluation of Spatial and Temporal Performances of ERA-Interim Precipitation and Temperature in Mainland China.JOURNAL OF CLIMATE,31(11),4347-4365.
MLA	Liu, Zhengjia,et al."Evaluation of Spatial and Temporal Performances of ERA-Interim Precipitation and Temperature in Mainland China".JOURNAL OF CLIMATE 31.11(2018):4347-4365.