Numerical investigation on propulsion of the counter-wind current in the northern South China Sea in winter
文献类型：期刊论文
| 作者 | Wang, DX ; Hong, B ; Gan, JP ; Xu, HZ |
| 刊名 | DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
 |
| 出版日期 | 2010 |
| 卷号 | 57期号:10页码:1206-1221 |
| 关键词 | Northern South China Sea Continental shelf/slope Counter-wind current Diagnostic analysis |
| ISSN号 | 0967-0637 |
| 通讯作者 | dxwang@scsio.ac.cn |
| 中文摘要 | The propulsion of the winter counter-wind current in the northern South China Sea (SCS) is investigated with a regional, three-dimensional, primitive equation model. This current is usually called the SCS Warm Current (SCSWC). Model results well reproduced the banded structure of the Guangdong coastal current, the SCSWC and the slope current from the coast to the slope in the northern SCS in the climatological data. The across-shelf flow is active in the shelf break area. Both onshore and offshore flows exist; the net across-shelf transport is shoreward throughout the year, and is larger in winter than in other seasons. The joint effect of baroclinicity and relief (JEBAR) is the dominant forcing of the across-shelf transport in the shelf break area. The major mass source of the SCSWC is the onshore-veered slope current. It is the JEBAR effect that supplies the necessary negative vorticity to maintain the slope current flowing across the isobaths and veering to the right hand to feed the SCSWC. Analyses of the momentum fields indicate that the onshore pressure gradient in the outer shelf balances the Coriolis force induced by the northeastward SCSWC in the frame of geostrophy. In winter, such an onshore pressure gradient is mainly provided by the strong density contrast between waters of the shelf and of the upper slope, which results from the Kuroshio intrusion via the Luzon Strait The notable intrusion of the Kuroshio in winter is crucial for maintaining the density structure in the shelf break area and facilitates the set-up of the onshore pressure gradient over the outer shelf. (C) 2010 Elsevier Ltd. All rights reserved. |
| 学科主题 | Oceanography |
| 收录类别 | SCI |
| 原文出处 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000283206600005 |
| 公开日期 | 2011-07-03 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/6205]  |
| 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 | Wang, DX,Hong, B,Gan, JP,et al. Numerical investigation on propulsion of the counter-wind current in the northern South China Sea in winter[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2010,57(10):1206-1221. |
| APA | Wang, DX,Hong, B,Gan, JP,&Xu, HZ.(2010).Numerical investigation on propulsion of the counter-wind current in the northern South China Sea in winter.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,57(10),1206-1221. |
| MLA | Wang, DX,et al."Numerical investigation on propulsion of the counter-wind current in the northern South China Sea in winter".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 57.10(2010):1206-1221. |
入库方式： OAI收割
来源：南海海洋研究所
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