Seasonal variability of the North Equatorial Current transport in the western Pacific Ocean
文献类型：CNKI期刊论文
| 作者 | Yan QX(闫庆勋); Hu DX(胡敦欣); Zhai FG(翟方国) |
| 发表日期 | 2014-01-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | North Equatorial Current(NEC) transport seasonal variability linear vorticity equation |
| 英文摘要 | Seasonal variability of the North Equatorial Current(NEC) transport in the western Pacifi c Ocean is investigated with ECMWF Ocean Analysis/Reanalysis System 3(ORA-S3). The result shows that NEC transport(NT) across different longitudes in the research area shows a similar double-peak structure, with two maxima(in summer and winter), and two minima(in spring and autumn). This kind of structure can also be found in NEC geostrophic transport(NGT), but in a different magnitude and phase. These differences are attributable to Ekman transport induced by the local meridional wind and transport caused by nonzero velocity at the reference level, which is assumed to be zero in the NGT calculation. In the present work, a linear vorticity equation governing a 1.5-layer reduced gravity model is adopted to examine the dynamics of the seasonal variability of NGT. It is found that the annual cycle of NGT is mainly controlled by Ekman pumping induced by local wind, and westward-propagating Rossby waves induced by remote wind. Further research demonstrates that the maximum in winter and minimum in spring are mostly attributed to wind east of the dateline, whilst the maximum in summer and minimum in autumn are largely attributed to that west of the dateline. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Basic Research Program of China(973 Program)(Nos.2012CB417401,2013CB956202) ; the Major Project of National Natural Science Foundation of China(No.40890151) |
| 卷 | v.32期:01页:225-239 |
| 语种 | 英文; |
| 分类号 | P731.2 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/190592]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.UniversityofChineseAcademyofSciences 2.KeyLaboratoryofOceanCirculationandWaves,ChineseAcademyofSciences 3.InstituteofOceanology,ChineseAcademyofSciences 4.ThirdInstituteofOceanography,StateOceanicAdministration |
| 推荐引用方式 GB/T 7714 | Yan QX,Hu DX,Zhai FG. Seasonal variability of the North Equatorial Current transport in the western Pacific Ocean. 2014. |
入库方式： OAI收割
来源：海洋研究所
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