The decadally modulating eddy field in the upstream Kuroshio Extension and its related mechanisms
文献类型：CNKI期刊论文
| 作者 | WANG Shihong ; LIU Zhiliang; PANG Chongguang; LIU Huiqing
|
| 发表日期 | 2016-05-15 |
| 出处 | Acta Oceanologica Sinica
 |
| 关键词 | Kuroshio Extension mesoscale eddy decadal modulation baroclinic instability barotropic energy conversion rate nonlinear eddy-eddy interaction |
| 英文摘要 | Both the level of the high-frequency eddy kinetic energy(HF-EKE) and the energy-containing scale in the upstream Kuroshio Extension(KE) undergo a well-defined decadal modulation, which correlates well with the decadal KE path variability. The HF-EKE level and the energy-containing scales will increase with unstable KE path and decrease with stable KE path. Also the mesoscale eddies are a little meridionally elongated in the stable state, while they are much zonally elongated in the unstable state. The local baroclinic instability and the barotropic instability associated with the decadal modulation of HF-EKE have been investigated. The results show that the baroclinic instability is stronger in the stable state than that in the unstable state, with a shorter characteristic temporal scale and a larger characteristic spatial scale. Meanwhile, the regional-averaged barotropic conversion rate is larger in the unstable state than that in the stable state. The results also demonstrate that the baroclinic instability is not the dominant mechanism influencing the decadal modulation of the mesoscale eddy field, while the barotropic instability makes a positive contribution to the decadal modulation. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | The National Natural Science Foundation of China under contract No.41276026 ; the Special Fund for Strategic Pilot Technology Chinese Academy of Sciences under contract No.XDA11020301 ; the Joint Fund between Natural Science Foundation of China and Shandong Province under contract No.U1406401 |
| 卷 | v.35期:05页:13-21 |
| 语种 | 英文; |
| 分类号 | P731.27 |
| ISSN号 | 0253-505X |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/189683]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLaboratoryofOceanCirculationandWaves,InstituteofOceanology,ChineseAcademyofSciences 2.CollegeofEarthScience,UniversityofChineseAcademyofSciences 3.InternationalHurricaneResearchCenter,FloridaInternationalUniversity |
| 推荐引用方式 GB/T 7714 | WANG Shihong,LIU Zhiliang,PANG Chongguang,et al. The decadally modulating eddy field in the upstream Kuroshio Extension and its related mechanisms. 2016. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。