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Meridional overturning circulation in the South China Sea envisioned from the high-resolution global reanalysis data GLBa0.08
Shu, Yeqiang1,2; Xue, Huijie1,2; Wang, Dongxiao1; Chai, Fei2; Xie, Qiang1,3; Yao, Jinglong1; Xiao, Jingen1
2014-05-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
Volume119Issue:5Pages:3012-3028
AbstractThe pattern of meridional overturning circulation (MOC) in the South China Sea (SCS) is studied using a numerical Lagrangian tracing method with the HYCOM+NCODA Global 1/12 degrees Analysis (GLBa0.08) data. The SCS MOC has a sandwich structure, which consists of a layer of stronger clockwise circulation above 500 m depth, a counterclockwise layer in the mid layer between 500 and 1000 m depth, and a weaker clockwise layer below 1000 m. The deep (below 1000 m depth) clockwise layer is divided into three cells, namely, the deep southern MOC cell, DSMOC; the deep middle MOC cell, DMMOC; and the unclosed deep northern MOC cell, DNMOC. The inflow through the Luzon Strait is the main source for the SCS MOCs. The upper layer Luzon Strait inflow dominates the upper SCS MOC structure but has relatively less contribution to the DNMOC, whereas the deep layer Luzon Strait inflow mainly influences the DNMOC and it mostly rises near 18 degrees N. The inflow through the Taiwan Strait mainly contributes to the upper layer MOC. Moreover, inflows from the Mindoro and Karimata straits contribute negatively to the upper MOC but play a significant role on the DSMOC. The backward integration of Lagrangian trajectories further validates that the SCS deep water comes not only from the deep inflow but also from the entrainment of the middle and upper layer inflow through the Luzon Strait. In the SCS basin, there are three northwest-southeast tilted zones where tracers upwell, which correspond to the three deep MOC cells. One possible mechanism for these upwelling zones is the interaction between the continental slope-trapped waves and the westward planetary Rossby waves.
SubtypeArticle
KeywordSouth China Sea Meridional Overturning Circulation Inflow Trajectory
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1002/2013JC009583
Indexed BySCI
Language英语
WOS KeywordKELVIN WAVE INTERACTION ; INTEROCEAN CIRCULATION ; ABYSSAL CIRCULATION ; TAIWAN STRAIT ; WORLD OCEAN ; MODEL ; EXTRATROPICS ; TRANSPORTS ; ADJUSTMENT ; BASIN
WOS SubjectOceanography
WOS IDWOS:000337632500018
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/782
Collection深海科学研究部_海洋环流观测与数值模拟研究室
Affiliation1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
2.Univ Maine, Sch Marine Sci, Orono, ME USA
3.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya, Peoples R China
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GB/T 7714
Shu, Yeqiang,Xue, Huijie,Wang, Dongxiao,et al. Meridional overturning circulation in the South China Sea envisioned from the high-resolution global reanalysis data GLBa0.08[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2014,119(5):3012-3028.
APA Shu, Yeqiang.,Xue, Huijie.,Wang, Dongxiao.,Chai, Fei.,Xie, Qiang.,...&Xiao, Jingen.(2014).Meridional overturning circulation in the South China Sea envisioned from the high-resolution global reanalysis data GLBa0.08.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,119(5),3012-3028.
MLA Shu, Yeqiang,et al."Meridional overturning circulation in the South China Sea envisioned from the high-resolution global reanalysis data GLBa0.08".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 119.5(2014):3012-3028.
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