Evaluating the Accuracy of ERA5 Wave Reanalysis in the Water Around China

doi:10.1007/s11802-021-4496-7

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Evaluating the Accuracy of ERA5 Wave Reanalysis in the Water Around China
	Shi Hongyuan 1,5; Cao Xuefeng 2; Li Qingjie 3; Li Delei 4; Sun Jiacheng 5; You Zaijin 1,5; Sun Qingying 5
刊名	JOURNAL OF OCEAN UNIVERSITY OF CHINA
	2021-02-01
卷号	20 期号:1 页码:1-9
关键词	wave hindcasting reanalysis ERA5 wave height wave period
ISSN号	1672-5182
DOI	10.1007/s11802-021-4496-7
通讯作者	Shi Hongyuan(hyshi@ldu.edu.cn)
英文摘要	Wave parameters, such as wave height and wave period, are important for human activities, such as navigation, ocean engineering and sediment transport, etc. In this study, wave data from six buoys around Chinese waters, are used to assess the quality of wave height and wave period in the ERA5 reanalysis of the European Centre for Medium-Range Weather Forecasts. Annual hourly data with temporal resolution are used. The difference between the significant wave height (SWH) of ERA 5 and that of the buoy varies from -0.35 m to 0.30 m for the three shallow locations; for the three deep locations, the variation ranges from -0.09 m to 0.09 m. The ERA5 SWH data show positive biases, indicating an overall overestimation for all locations, except for E2 and S1 where underestimation is observed. During the tropical cyclone period, a large (about 32%) underestimation of the maximum SWH in the ERA5 data is observed. Hence, the ERA5 SWH data cannot be used for design applications without site-specific validation. The difference between the annual wave period from ERA5 and the mean wave period from the buoys varies from -1.31s to 0.4s. Inter-comparisons suggest that the ERA5 dataset is consistent with the annual mean SWH. However, for the average period, the performance is not good, and half of the correlation coefficients in the four points are less 50%. Overall, the deep water area simulation effect is better than that in the shallow water.
WOS研究方向	Oceanography
语种	英语
出版者	OCEAN UNIV CHINA
WOS记录号	WOS:000607404700001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/169998]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Shi Hongyuan
作者单位	1.Ludong Univ, Inst Ports & Coastal Disaster Mitigat, Yantai 264025, Peoples R China 2.Natl Marine Environm Monitoring Ctr, Dalian 116023, Peoples R China 3.State Ocean Adm, Yantai Marine Environm Monitoring Cent Stn, Yantai 264006, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 5.Ludong Univ, Sch Civil Engn, Yantai 264025, Peoples R China
推荐引用方式 GB/T 7714	Shi Hongyuan,Cao Xuefeng,Li Qingjie,et al. Evaluating the Accuracy of ERA5 Wave Reanalysis in the Water Around China[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2021,20(1):1-9.
APA	Shi Hongyuan.,Cao Xuefeng.,Li Qingjie.,Li Delei.,Sun Jiacheng.,...&Sun Qingying.(2021).Evaluating the Accuracy of ERA5 Wave Reanalysis in the Water Around China.JOURNAL OF OCEAN UNIVERSITY OF CHINA,20(1),1-9.
MLA	Shi Hongyuan,et al."Evaluating the Accuracy of ERA5 Wave Reanalysis in the Water Around China".JOURNAL OF OCEAN UNIVERSITY OF CHINA 20.1(2021):1-9.