Sensitivity Study of the Seasonal Mean Circulation in the Northern South China Sea
Bo, H; Wang, DX; hongbo@scsio.ac.cn
2008
发表期刊ADVANCES IN ATMOSPHERIC SCIENCES
ISSN0256-1530
卷号25期号:5页码:824-840
摘要A study of the circulation in the northern South China Sea (SCS) is carried out with the aid of a three-dimensional, high-resolution regional ocean model. One control and two sensitivity experiments are performed to qualitatively investigate the effects of surface wind forcing, Kuroshio intrusion, and bottom topographic influence on the circulation in the northern SCS. The model results show that a branch of the Kuroshio in the upper layer can intrude into the SCS and have direct influence on the circulation over the continental shelf break in the northern SCS. There are strong southward pressure gradients along a zonal belt largely seaward of the continental slope. The pressure gradients are opposite in the southern and northern parts of the Luzon Strait, indicating inflow and outflow through the strait, respectively. The sensitivity experiments suggest that the Kuroshio intrusion is responsible for generating the imposed pressure head along the shelf break and has no obvious seasonal variations. The lateral forcing through the Luzon Strait and Taiwan Strait can induce the southwestward slope current and the northeastward SCS Warm Current in the northern SCS. Without the lateral forcing, there is no high-pressure-gradient zonal belt seaward of the continental slope. The wind forcing mainly causes the seasonal variation of the circulation in the SCS. The wind-induced water pile-up results in the southward high pressure gradient along the northwestern boundary of the basin. Without the blocking of the plateau around Dongsha Islands, the intruded Kuroshio tends to extend northwest and the SCS branch of the Kuroshio becomes wider and stronger. The analyses presented here are qualitative in nature but should lead to a better understanding of the oceanic responses in the northern SCS to these external influence factors.
部门归属[Bo, Hong; Wang Dongxiao] Chinese Acad Sci, S China Sea Inst Oceanol, Lab Trop Marine Environm Dynam, Guangzhou 510301, Guangdong, Peoples R China
关键词Northern South China Sea Circulation Wind Forcing Kuroshio Intrusion Bottom Topography
学科领域Meteorology & Atmospheric Sciences
URL查看原文
收录类别sci
资助项目LED
WOS记录号WOS:000259995200013
引用统计
被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/5953
专题热带海洋环境国家重点实验室(LTO)
通讯作者hongbo@scsio.ac.cn
推荐引用方式
GB/T 7714
Bo, H,Wang, DX,hongbo@scsio.ac.cn. Sensitivity Study of the Seasonal Mean Circulation in the Northern South China Sea[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2008,25(5):824-840.
APA Bo, H,Wang, DX,&hongbo@scsio.ac.cn.(2008).Sensitivity Study of the Seasonal Mean Circulation in the Northern South China Sea.ADVANCES IN ATMOSPHERIC SCIENCES,25(5),824-840.
MLA Bo, H,et al."Sensitivity Study of the Seasonal Mean Circulation in the Northern South China Sea".ADVANCES IN ATMOSPHERIC SCIENCES 25.5(2008):824-840.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。