Optimal Initial Error Growth in the Prediction of the Kuroshio Large Meander Based on a High-resolution Regional Ocean Model
文献类型：CNKI期刊论文
| 作者 | Xia LIU; Qiang WANG; Mu MU |
| 发表日期 | 2018-10-17 |
| 出处 | Advances in Atmospheric Sciences
 |
| 关键词 | Kuroshio large meander predictability ROMS optimal initial error growth |
| 英文摘要 | Based on the high-resolution Regional Ocean Modeling System(ROMS) and the conditional nonlinear optimal perturbation(CNOP) method, this study explored the effects of optimal initial errors on the prediction of the Kuroshio large meander(LM) path, and the growth mechanism of optimal initial errors was revealed. For each LM event, two types of initial error(denoted as CNOP1 and CNOP2) were obtained. Their large amplitudes were found located mainly in the upper 2500 m in the upstream region of the LM, i.e., southeast of Kyushu. Furthermore, we analyzed the patterns and nonlinear evolution of the two types of CNOP. We found CNOP1 tends to strengthen the LM path through southwestward extension. Conversely,CNOP2 has almost the opposite pattern to CNOP1, and it tends to weaken the LM path through northeastward contraction.The growth mechanism of optimal initial errors was clarified through eddy-energetics analysis. The results indicated that energy from the background field is transferred to the error field because of barotropic and baroclinic instabilities. Thus, it is inferred that both barotropic and baroclinic processes play important roles in the growth of CNOP-type optimal initial errors. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | supported by the National Natural Scientific Foundation of China (Grant Nos. 41230420 and 41576015) ; the Qingdao National Laboratory for Marine Science and Technology (Grant No. QNLM2016ORP0107) ; the NSFC Innovative Group (Grant No. 41421005) ; the NSFC–Shandong Joint Fund for Marine Science Research Centers (Grant No. U1606402) ; the National Programme on Global Change and Air–Sea Interaction (Grant No. GASI-IPOVAI-06) |
| 卷 | v.35期:11页:28-37 |
| 语种 | 英文; |
| 分类号 | P731.27 |
| ISSN号 | 0256-1530 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/188764]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.CASKeyLaboratoryofOceanCirculationandWaves,InstituteofOceanology,ChineseAcademyofSciences 2.UniversityofChineseAcademyofSciences 3.PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao) 4.CenterforOceanMega-Science,ChineseAcademyofSciences 5.InstituteofAtmosphericSciences,FudanUniversity |
| 推荐引用方式 GB/T 7714 | Xia LIU,Qiang WANG,Mu MU. Optimal Initial Error Growth in the Prediction of the Kuroshio Large Meander Based on a High-resolution Regional Ocean Model. 2018. |
入库方式： OAI收割
来源：海洋研究所
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