A background error covariance model of significant wave height employing Monte Carlo simulation

doi:10.1007/s00343-012-1278-5

IOCAS-IR > 海洋环流与波动重点实验室

	A background error covariance model of significant wave height employing Monte Carlo simulation
	Guo Yanyou 1,2; Hou Yijun 2; Zhang Chunmei 3; Yang Jie 1; Guo, YY (reprint author), Huaihai Inst Technol, Lianyungang 222005, Peoples R China.
	2012-09-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	0254-4059
卷号	30 期号:5 页码:814-821
文章类型	Article
摘要	The quality of background error statistics is one of the key components for successful assimilation of observations in a numerical model. The background error covariance (BEC) of ocean waves is generally estimated under an assumption that it is stationary over a period of time and uniform over a domain. However, error statistics are in fact functions of the physical processes governing the meteorological situation and vary with the wave condition. In this paper, we simulated the BEC of the significant wave height (SWH) employing Monte Carlo methods. An interesting result is that the BEC varies consistently with the mean wave direction (MWD). In the model domain, the BEC of the SWH decreases significantly when the MWD changes abruptly. A new BEC model of the SWH based on the correlation between the BEC and MWD was then developed. A case study of regional data assimilation was performed, where the SWH observations of buoy 22001 were used to assess the SWH hindcast. The results show that the new BEC model benefits wave prediction and allows reasonable approximations of anisotropy and inhomogeneous errors.
关键词	Background Error Covariance Data Assimilation Monte Carlo Method Ocean Wave
学科领域	Limnology ; Oceanography
DOI	10.1007/s00343-012-1278-5
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000308357800013
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/12125
专题	海洋环流与波动重点实验室
通讯作者	Guo, YY (reprint author), Huaihai Inst Technol, Lianyungang 222005, Peoples R China.
作者单位	1.Huaihai Inst Technol, Lianyungang 222005, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Meteorol Bur Lianyungang, Lianyungang 222006, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Guo Yanyou,Hou Yijun,Zhang Chunmei,et al. A background error covariance model of significant wave height employing Monte Carlo simulation[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2012,30(5):814-821.
APA	Guo Yanyou,Hou Yijun,Zhang Chunmei,Yang Jie,&Guo, YY .(2012).A background error covariance model of significant wave height employing Monte Carlo simulation.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,30(5),814-821.
MLA	Guo Yanyou,et al."A background error covariance model of significant wave height employing Monte Carlo simulation".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 30.5(2012):814-821.

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