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| Study of the wind drag coefficient during the storm Xaver in the German Bight using data assimilation | |
| Zheng, Xiangyang1,3; Mayerle, Roberto2; Wang, Yebao3; Zhang, Hua3 | |
| 2018-09-01 | |
| 发表期刊 | DYNAMICS OF ATMOSPHERES AND OCEANS
 |
| ISSN | 0377-0265 |
| 卷号 | 83页码:64-74 |
| 通讯作者 | Zhang, Hua(hzhang@yic.ac.cn) |
| 摘要 | Wind stress is the most important driving force for storm surge in coastal waters. Currently, the parameterization of wind stress is still not well developed and is the most uncertain parameters for storm surge models. In this paper, a storm surge model for the German Bight is developed using the model Delft3D. The data assimilation method, adjoint-free 4Dvar, which is relatively easier to be implemented than the adjoint method, is used to assimilate measured water level data into Delft3D. The storm surge prediction is more accurate when we adjusted the drag coefficient using the adjoint free data assimilation method, than in a companion forward model. The drag coefficient is consistent with results from previous studies. The wind drag coefficient is also calculated using results of a wave model. It has been found that the relation between the drag coefficient and wind speed is approximately linear in the deep water. But in the shallow water, wind drag coefficient shows larger variability due to the wave shoaling effect. The linear relation adjusted by data assimilation agrees well with that derived from a wave-related formula. It is also found that wave-related parameterization scheme is necessary for shallow waters. |
| 关键词 | German Bight Wind drag coefficient 4Dvar Storm surge modeling |
| DOI | 10.1016/j.dynatmoce.2018.06.001 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences ; Oceanography |
| WOS类目 | Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences ; Oceanography |
| WOS记录号 | WOS:000444661800005 |
| 出版者 | ELSEVIER SCIENCE BV |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/160166 |
| 专题 | 中国科学院海洋研究所 |
| 通讯作者 | Zhang, Hua |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Univ Kiel, Res & Technol Ctr, Kiel, Germany 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, 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 | Zheng, Xiangyang,Mayerle, Roberto,Wang, Yebao,et al. Study of the wind drag coefficient during the storm Xaver in the German Bight using data assimilation[J]. DYNAMICS OF ATMOSPHERES AND OCEANS,2018,83:64-74. |
| APA | Zheng, Xiangyang,Mayerle, Roberto,Wang, Yebao,&Zhang, Hua.(2018).Study of the wind drag coefficient during the storm Xaver in the German Bight using data assimilation.DYNAMICS OF ATMOSPHERES AND OCEANS,83,64-74. |
| MLA | Zheng, Xiangyang,et al."Study of the wind drag coefficient during the storm Xaver in the German Bight using data assimilation".DYNAMICS OF ATMOSPHERES AND OCEANS 83(2018):64-74. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Study of the wind dr（2114KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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