气候变化领域集成服务门户(CCPortal): Evaluation of the ERA5 reanalysis precipitation dataset over Chinese Mainland

CCPortal

DOI	10.1016/j.jhydrol.2020.125660
	Evaluation of the ERA5 reanalysis precipitation dataset over Chinese Mainland
	Jiang, Qin; Li, Weiyue; Fan, Zedong; He, Xiaogang; Sun, Weiwei; Chen, Sheng; Wen, Jiahong; Gao, Jun; Wang, Jun
通讯作者	Wang, J (通讯作者)，East China Normal Univ, Key Lab Geog Informat Sci, Minist Educ, Shanghai 200241, Peoples R China. ; Li, WY (通讯作者)，Shanghai Normal Univ, Sch Environm & Geog Sci, Shanghai 200234, Peoples R China.
发表日期	2021
ISSN	0022-1694
EISSN	1879-2707
卷号	595
英文摘要	Reanalysis precipitation products are important datasets for precipitation estimates over ungauged areas. The objective of this study was to evaluate the accuracy of the newly released fifth-generation reanalysis product of the European Centre for Medium Range Weather Forecasts (ECMWF), i.e., ERA5, for precipitation estimates over Chinese Mainland during 2003-2015. In this study, we evaluated the ERA5 reanalysis data using gridded gauge precipitation. Both categorical and continuous verification scores were calculated. The results show that the detection capacity of ERA5 varies across the four sub-regions of Chinese Mainland. ERA5 tends to misdetect daily precipitation events in the south of the northwestern arid climate (NAC) and north of plateau climate (PC) zones. In addition, it is more difficult for ERA5 to accurately detect moderate or higher daily precipitation events (above 10 mm/day). Error analysis show that ERA5 product has higher root mean-square error (RMSE) values in the tropical and subtropical climate zone (TSC) with a relatively wet climate. Compared to satellite-based precipitation product, ERA5 has larger relative biases in precipitation estimates over Chinese Mainland and it tends to over- and underestimate light precipitation events and moderate and heavy precipitation events, respectively. Based on the analysis of the accuracy of ERA5 during typhoon-induced extreme precipitation, ERA5 can identify the precipitation distribution and center, but underestimates extreme precipitation. Overall, the results of this study provide references for the use of ERA5 in hydrological applications over Chinese Mainland.
关键词	GLOBAL PRECIPITATION ECMWF REANALYSIS TIBETAN PLATEAU CLIMATE-CHANGE NCEP-CFSR SATELLITE PRODUCTS INTERIM MULTISATELLITE GPM
英文关键词	ERA5; Reanalysis precipitation dataset; Accuracy evaluation; Typhoon extreme precipitation; Chinese Mainland
语种	英语
WOS研究方向	Engineering ; Geology ; Water Resources
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000641592600009
来源期刊	JOURNAL OF HYDROLOGY
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/255134
作者单位	[Jiang, Qin; Wang, Jun] East China Normal Univ, Key Lab Geog Informat Sci, Minist Educ, Shanghai 200241, Peoples R China; [Jiang, Qin; Wang, Jun] East China Normal Univ, Sch Geog Sci, Shanghai 200241, Peoples R China; [Li, Weiyue; Fan, Zedong; Wen, Jiahong; Gao, Jun] Shanghai Normal Univ, Sch Environm & Geog Sci, Shanghai 200234, Peoples R China; [Li, Weiyue] Shanghai Normal Univ, Inst Urban Studies, Shanghai 200234, Peoples R China; [Li, Weiyue] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; [He, Xiaogang] Stanford Univ, Woods Inst Environm, Water West, Stanford, CA 94305 USA; [Sun, Weiwei] Ningbo Univ, Dept Geog & Spatial Informat Tech, Ningbo 315211, Peoples R China; [Chen, Sheng] Sun Yat Sen Univ, Minist Educ, Sch Atmospher Sci, Zhuhai 519000, Peoples R China; [Chen, Sheng] Sun Yat Sen Univ, Minist Educ, Key Lab Trop Atmosphere Ocean Syst, Zhuhai 519000, Peoples R China; [Chen, Sheng] Southern Lab Ocean Sci & Engn, Zhuhai, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Qin,Li, Weiyue,Fan, Zedong,et al. Evaluation of the ERA5 reanalysis precipitation dataset over Chinese Mainland[J]. 中国科学院西北生态环境资源研究院,2021,595.
APA	Jiang, Qin.,Li, Weiyue.,Fan, Zedong.,He, Xiaogang.,Sun, Weiwei.,...&Wang, Jun.(2021).Evaluation of the ERA5 reanalysis precipitation dataset over Chinese Mainland.JOURNAL OF HYDROLOGY,595.
MLA	Jiang, Qin,et al."Evaluation of the ERA5 reanalysis precipitation dataset over Chinese Mainland".JOURNAL OF HYDROLOGY 595(2021).