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Mesoscale eddies cases study at Xisha waters in the South China Sea in 2009/2010
Wang, Qiang; Zeng, Lili; Zhou, Weidong; Xie, Qiang; Cai, Shuqun; Yao, Jinglong; Wang, Dongxiao; dxwang@scsio.ac.cn
2015
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
Volume120Issue:1Pages:517-532
AbstractAnalyzing the observed currents at Xisha (110.3899 degrees E, 17.1038 degrees N) during May 2009 to May 2010, it is found that the kinetic energy has significant mesoscale variability, and each peak responds to large positive/negative ocean surface current curl caused by mesoscale eddies. Compared the kinetic energy with the wind stress work and the pressure work, it is also found that the barotropic pressure work which is mainly contributed by the sea surface height (SSH) corresponding to the mesoscale eddies behaves like the kinetic energy. The contribution of the mesoscale eddies to the kinetic energy can be up to 90% sometimes and reach deep level every time. Using the satellite altimeter data, the paths of mesoscale eddies contributing to the kinetic energy variability are traced back. In the winter half of the year, the mesoscale eddies propagating along the northern South China Sea shelf or across the basin from the west of the Philippines toward Xisha arrive at Xisha, influencing the kinetic energy. In the summer half of the year, the mesoscale eddies are mainly from the south, which were shed from the Vietnam coast current. And the cause for eddy shedding may be related to the relaxation of the Ekman transport anomalies.
Department[Wang, Qiang; Zeng, Lili; Zhou, Weidong; Xie, Qiang; Cai, Shuqun; Yao, Jinglong; Wang, Dongxiao] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China; [Xie, Qiang] Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya, Peoples R China ; LTO
KeywordMesoscale Eddy Xisha Adcp
Subject AreaOceanography
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/15013
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authordxwang@scsio.ac.cn
Recommended Citation
GB/T 7714
Wang, Qiang,Zeng, Lili,Zhou, Weidong,et al. Mesoscale eddies cases study at Xisha waters in the South China Sea in 2009/2010[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2015,120(1):517-532.
APA Wang, Qiang.,Zeng, Lili.,Zhou, Weidong.,Xie, Qiang.,Cai, Shuqun.,...&dxwang@scsio.ac.cn.(2015).Mesoscale eddies cases study at Xisha waters in the South China Sea in 2009/2010.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,120(1),517-532.
MLA Wang, Qiang,et al."Mesoscale eddies cases study at Xisha waters in the South China Sea in 2009/2010".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 120.1(2015):517-532.
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