The characteristics of the mid-depth striations in the North Indian Ocean
文献类型：期刊论文
| 作者 | Xia, Yifan3,5; Du, Yan3,4,5; Qiu, Bo2; Cheng, Xuhua1; Wang, Tianyu3; Xie, Qiang7 |
| 刊名 | DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
 |
| 出版日期 | 2020 |
| 卷号 | 162页码:103307 |
| 关键词 | Baroclinic rossby wave Striations Triad rossby wave interaction |
| ISSN号 | 0967-0637 |
| 英文摘要 | Argo float trajectory data has been used to estimate the velocities of mid-depth (1000 db) currents in the North Indian Ocean (NIO). The structure of the upper ocean absolute geostmphic currents can be derived more accurately from the Argo temperature and salinity profiles by referring to the estimated velocities rather than by assuming a level of "no motion". The derived flow field reveals that the eastward zonal velocities generate striation-like structures in the Arabian Sea, which is most prominent above the layer of 500 db layer, with a meridional scale of similar to 300 km; however, such structures are barely observed in the Bay of Bengal. This meridional scale as well as the distribution of the mid-depth striations are unique to the NIO, as compared with the other ocean basins. The nonlinear 1 1/2-layer reduced-gravity model combined with the triad baroclinic Rossby wave interaction theory have been used to determine the essential factors controlling the characteristics of the quasizonal striation structure. Compared with the North Pacific Ocean, the meridional scale in the NIO is narrower, and is caused by the smaller basin size in the equatorial zone, rather than by the semiannual wind stress forcing period or the eastern boundary angle. Furthermore, the coastal trapped Kelvin waves significantly contribute to the generation of the zonal striations in the Arabian Sea. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18288]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 作者单位 | 1.Univ Hawaii Manoa, Dept Oceanog, Honolulu, HI 96822 USA 2.Southern Marine Sci & Engn Guangdong Lab, Guangzhou, Peoples R China 3.Chinese Acad Sci, South China Sea Inst Oceanol SCSIO, State Key Lab Trop Oceanog, Guangzhou, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Chinese Acad Sci, China Pakistan Joint Res Ctr Earth Sci, Guangzhou, Peoples R China 6.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China 7.Hohai Univ, Coll Oceanog, Nanjing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, Yifan,Du, Yan,Qiu, Bo,et al. The characteristics of the mid-depth striations in the North Indian Ocean[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2020,162:103307. |
| APA | Xia, Yifan,Du, Yan,Qiu, Bo,Cheng, Xuhua,Wang, Tianyu,&Xie, Qiang.(2020).The characteristics of the mid-depth striations in the North Indian Ocean.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,162,103307. |
| MLA | Xia, Yifan,et al."The characteristics of the mid-depth striations in the North Indian Ocean".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 162(2020):103307. |
入库方式： OAI收割
来源：南海海洋研究所
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