Features of the Equatorial Intermediate Current Associated with Basin Resonance in the Indian Ocean
文献类型：期刊论文
| 作者 | Huang, K; Han, WQ; Wang, DX; Wang, WQ; Xie, Q; Chen, J; Chen, GX; chengengxin@scsio.ac.cn |
| 刊名 | JOURNAL OF PHYSICAL OCEANOGRAPHY
 |
| 出版日期 | 2018 |
| 卷号 | 48期号:6页码:1333-1347 |
| 英文摘要 | This paper investigates the features of the Equatorial Intermediate Current (EIC) in the Indian Ocean and its relationship with basin resonance at the semiannual time scale by using in situ observations, reanalysis output, and a continuously stratified linear ocean model (LOM). The observational results show that the EIC is characterized by prominent semiannual variations with velocity reversals and westward phase propagation and that it is strongly influenced by the pronounced second baroclinic mode structure but with identifiable vertical phase propagation. Similar behavior is found in the reanalysis data and LOM results. The simulation of wind-driven equatorial wave dynamics in the LOM reveals that the observed variability of the EIC can be largely explained by the equatorial basin resonance at the semiannual period, when the second baroclinic Rossby wave reflected from the eastern boundary intensifies the directly forced equatorial Kelvin and Rossby waves in the basin interior. The sum of the first 10 modes can reproduce the main features of the EIC. Among these modes, the resonant second baroclinic mode makes the largest contribution, which dominates the vertical structure, semiannual cycle, and westward phase propagation of the EIC. The other 9 modes, however, are also important, and the superposition of the first 10 modes produces downward energy propagation in the equatorial Indian Ocean. |
| 学科主题 | Oceanography |
| 资助项目 | LTO |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/17067]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 通讯作者 | chengengxin@scsio.ac.cn |
| 推荐引用方式 GB/T 7714 | Huang, K,Han, WQ,Wang, DX,et al. Features of the Equatorial Intermediate Current Associated with Basin Resonance in the Indian Ocean[J]. JOURNAL OF PHYSICAL OCEANOGRAPHY,2018,48(6):1333-1347. |
| APA | Huang, K.,Han, WQ.,Wang, DX.,Wang, WQ.,Xie, Q.,...&chengengxin@scsio.ac.cn.(2018).Features of the Equatorial Intermediate Current Associated with Basin Resonance in the Indian Ocean.JOURNAL OF PHYSICAL OCEANOGRAPHY,48(6),1333-1347. |
| MLA | Huang, K,et al."Features of the Equatorial Intermediate Current Associated with Basin Resonance in the Indian Ocean".JOURNAL OF PHYSICAL OCEANOGRAPHY 48.6(2018):1333-1347. |
入库方式： OAI收割
来源：南海海洋研究所
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