A background error covariance model of significant wave height employing Monte Carlo simulation
文献类型：期刊论文
| 作者 | Guo Yanyou1,2; Hou Yijun2; Zhang Chunmei3; Yang Jie1 |
| 刊名 | CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
 |
| 出版日期 | 2012-09-01 |
| 卷号 | 30期号:5页码:814-821 |
| 关键词 | background error covariance data assimilation Monte Carlo method ocean wave |
| ISSN号 | 0254-4059 |
| 通讯作者 | Guo, YY (reprint author), Huaihai Inst Technol, Lianyungang 222005, Peoples R China. |
| 英文摘要 | 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. |
| 学科主题 | Limnology ; Oceanography |
| 收录类别 | SCI |
| 原文出处 | 10.1007/s00343-012-1278-5 |
| 语种 | 英语 |
| WOS记录号 | WOS:000308357800013 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/12125]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 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 |
| 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.(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. |
入库方式： OAI收割
来源：海洋研究所
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