Implementation of new time integration methods in POM
文献类型：期刊论文
| 作者 | Qiang, W ; Zhou, WD ; Wang, DX |
| 刊名 | OCEAN DYNAMICS
 |
| 出版日期 | 2014 |
| 卷号 | 64期号:5页码:643-654 |
| 关键词 | Alternative leapfrog (ALF) scheme Princeton Ocean Model(POM) Split time stepping Time-splitting error |
| ISSN号 | 1616-7341 |
| 通讯作者 | wdzhou@scsio.ac.cn |
| 中文摘要 | Instead of the standard leapfrog (SLF) scheme, an alternative leapfrog (ALF) scheme is used to solve the barotropic equations of the external mode in the Princeton Ocean Model (POM). The ALF scheme is modified in this study to deal with the nonlinear finite amplitude surface displacement. ALF has the advantage of improved numerical properties, longer time step relative to SLF, conservation of energy, and elimination of the Asselin filter. The numerical experiments of POM are implemented to show the above advantages. The split time stepping in 3D POM is found in this study to have numerical discrepancy due to the mismatched stepping between external and internal modes, and it results in a splitting error between the external and internal modes. A new split time stepping is therefore proposed. Numerical analysis indicates that there is no discrepancy with this split time stepping. The new split time stepping is implemented in the 3D POM. The numerical experiments demonstrate that the splitting error in POM can be reduced by three orders of magnitude relative to the original formulation, though the numerical error of the original formulation is already quite small. |
| 学科主题 | Oceanography |
| 收录类别 | SCI |
| 资助信息 | Chinese Academy of Sciences [XDA11010304]; National Natural Science Foundation of China [41376026, 41206011] |
| 原文出处 | SPRINGER HEIDELBERG |
| WOS记录号 | WOS:000335669200002 |
| 公开日期 | 2014-12-11 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/10555]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 推荐引用方式 GB/T 7714 | Qiang, W,Zhou, WD,Wang, DX. Implementation of new time integration methods in POM[J]. OCEAN DYNAMICS,2014,64(5):643-654. |
| APA | Qiang, W,Zhou, WD,&Wang, DX.(2014).Implementation of new time integration methods in POM.OCEAN DYNAMICS,64(5),643-654. |
| MLA | Qiang, W,et al."Implementation of new time integration methods in POM".OCEAN DYNAMICS 64.5(2014):643-654. |
入库方式： OAI收割
来源：南海海洋研究所
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