Persistent and energetic bottom-trapped topographic Rossby waves observed in the southern South China Sea
Shu, Yeqiang; Xue, Huijie; Wang, Dongxiao; Chai, Fei; Xie, Qiang; Cai, Shuqun; Chen, Rongyu; Chen, Ju; Li, Jian; He, Yunkai; Xue, HJ (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China.; Xue, HJ (reprint author), Univ Maine, Sch Marine Sci, Orono, ME USA.
2016
发表期刊SCIENTIFIC REPORTS
卷号6页码:24338
摘要Energetic fluctuations with periods of 9-14 days below a depth of 1400 m were observed in the southern South China Sea (SCS) from 5 years of direct measurements. We interpreted such fluctuations as topographic Rossby waves (TRWs) because they obey the dispersion relation. The TRWs persisted from May 24, 2009 to August 23, 2013, and their bottom current speed with a maximum of similar to 10 cm/s was one order of magnitude greater than the mean current and comparable to the tidal currents near the bottom. The bottom-trapped TRWs had an approximate trapping depth of 325 m and reference wavelength of similar to 82 km, which were likely excited by eddies above. Upper layer current speed that peaked approximately every 2 months could offer the energy sources for the persistent TRWs in the southern SCS. Energetic bottom-trapped TRWs may have a comparable role in deep circulation to tides in areas with complex topography.
部门归属[Shu, Yeqiang; Xue, Huijie; Wang, Dongxiao; Cai, Shuqun; Chen, Rongyu; Chen, Ju; Li, Jian; He, Yunkai] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China; [Shu, Yeqiang; Xue, Huijie; Chai, Fei] Univ Maine, Sch Marine Sci, Orono, ME USA; [Xie, Qiang] Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya, Peoples R China ; LTO
学科领域Science & Technology - Other Topics
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/15545
专题热带海洋环境国家重点实验室(LTO)
通讯作者Xue, HJ (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China.; Xue, HJ (reprint author), Univ Maine, Sch Marine Sci, Orono, ME USA.
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Shu, Yeqiang,Xue, Huijie,Wang, Dongxiao,et al. Persistent and energetic bottom-trapped topographic Rossby waves observed in the southern South China Sea[J]. SCIENTIFIC REPORTS,2016,6:24338.
APA Shu, Yeqiang.,Xue, Huijie.,Wang, Dongxiao.,Chai, Fei.,Xie, Qiang.,...&Xue, HJ .(2016).Persistent and energetic bottom-trapped topographic Rossby waves observed in the southern South China Sea.SCIENTIFIC REPORTS,6,24338.
MLA Shu, Yeqiang,et al."Persistent and energetic bottom-trapped topographic Rossby waves observed in the southern South China Sea".SCIENTIFIC REPORTS 6(2016):24338.
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