Geostrophic Circulation in the Tropical North Pacific Ocean Based on Argo Profiles
文献类型：期刊论文
| 作者 | Yuan, DL ; Zhang, ZC ; Chu, PC ; Dewar, WK |
| 刊名 | JOURNAL OF PHYSICAL OCEANOGRAPHY
 |
| 出版日期 | 2014 |
| 卷号 | 44期号:2页码:558-575 |
| 关键词 | Ocean dynamics Circulation/Dynamics Nonlinear dynamics Ocean circulation Transport |
| ISSN号 | 0022-3670 |
| 通讯作者 | dyuan@ms.qdio.ac.cn |
| 中文摘要 | Absolute geostrophic currents in the North Pacific Ocean are calculated from the newly gridded Argo profiling float data using the P-vector method for the period of 2004-11. The zonal geostrophic currents based on the Argo profile data are found to be stronger than those based on the traditional World Ocean Atlas 2009 (WOA09) data. A westward mean geostrophic flow underneath the North Equatorial Countercurrent is identified using the Argo data, which is evidenced by sporadic direct current measurements and geostrophic calculations in history. This current originates east of the date line and transports more than 4 x 10(6) m(3) s(-1) of water westward in the subsurface northwestern tropical Pacific Ocean. The authors name this current the North Equatorial Subsurface Current. The transport in the geostrophic currents is compared with the Sverdrup theory and found to differ significantly in several locations. Analyses have shown that errors of wind stress estimation cannot account for all of the differences. The largest differences are found in the area immediately north and south of the bifurcation latitude of the North Equatorial Current west of the date line and in the recirculation area of the Kuroshio and its extension, where nonlinear activities are vigorous. It is, therefore, suggested that the linear dynamics of the Sverdrup theory is deficient in explaining the geostrophic transport of the tropical northwestern Pacific Ocean. |
| 学科主题 | Oceanography |
| 收录类别 | SCI |
| 资助信息 | National Basic Research Program of China [2012CB956000]; NSFC [40888001, 41176019]; CMA [GYHY201306018]; CAS [XDA11010301]; KLOCAW [1208]; Zhoushan Municipal Science and Technology Project [2011C32015, 2012C33033]; Naval Oceanographic Office; NSF [OCE-0960500, OCE-1049131] |
| 原文出处 | AMER METEOROLOGICAL SOC |
| WOS记录号 | WOS:000331024500009 |
| 公开日期 | 2014-12-11 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/10574]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 推荐引用方式 GB/T 7714 | Yuan, DL,Zhang, ZC,Chu, PC,et al. Geostrophic Circulation in the Tropical North Pacific Ocean Based on Argo Profiles[J]. JOURNAL OF PHYSICAL OCEANOGRAPHY,2014,44(2):558-575. |
| APA | Yuan, DL,Zhang, ZC,Chu, PC,&Dewar, WK.(2014).Geostrophic Circulation in the Tropical North Pacific Ocean Based on Argo Profiles.JOURNAL OF PHYSICAL OCEANOGRAPHY,44(2),558-575. |
| MLA | Yuan, DL,et al."Geostrophic Circulation in the Tropical North Pacific Ocean Based on Argo Profiles".JOURNAL OF PHYSICAL OCEANOGRAPHY 44.2(2014):558-575. |
入库方式： OAI收割
来源：南海海洋研究所
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