Deep Sea Currents Driven by Breaking Internal Tides on the Continental Slope
Xie, XH; Liu, Q; Zhao, ZX; Shang, XD; Cai, SQ; Wang, DX; Chen, DK; xhxie2013@gmail.com
2018
发表期刊GEOPHYSICAL RESEARCH LETTERS
卷号45期号:12页码:6160-6166
摘要Mooring data collected on the continental slope of the South China Sea show that along-slope deep sea bottom currents are generated when large spring internal tides (internal waves with tidal frequency) are observed, with the maximum velocity amplitude exceeding 0.15m/s. The observations are consistent with predictions that near-bottom breaking of internal waves can result in generation of along-slope flows when these waves obliquely approach the slope. A linear internal tide model in one horizontal dimension with realistic topography and stratification is used to show that the breaking of internal tides is likely due to near-critical reflection on the slope. Combining the mooring observations and the model simulation, an along-slope near-bottom transport of similar to 0.5Sv is estimated. Along-slope bottom flows caused by breaking internal waves potentially provide a significant way to deform continental slopes and affect deep water exchange between the marginal sea and open ocean.
部门归属[Xie, Xiaohui; Chen, Dake] State Ocean Adm, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou, Zhejiang, Peoples R China; [Liu, Qian] Jiangsu Univ Sci & Technol, Sch Naval Architecture & Ocean Engn, Zhenjiang, Peoples R China; [Zhao, Zhongxiang] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA; [Shang, Xiaodong; Cai, Shuqun; Wang, Dongxiao] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
关键词Along-slope Flows Internal Tides Internal Wave Breaking Continental Slope South China Sea
学科领域Geology
资助项目LTO
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/17063
专题热带海洋环境国家重点实验室(LTO)
通讯作者xhxie2013@gmail.com
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GB/T 7714
Xie, XH,Liu, Q,Zhao, ZX,et al. Deep Sea Currents Driven by Breaking Internal Tides on the Continental Slope[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(12):6160-6166.
APA Xie, XH.,Liu, Q.,Zhao, ZX.,Shang, XD.,Cai, SQ.,...&xhxie2013@gmail.com.(2018).Deep Sea Currents Driven by Breaking Internal Tides on the Continental Slope.GEOPHYSICAL RESEARCH LETTERS,45(12),6160-6166.
MLA Xie, XH,et al."Deep Sea Currents Driven by Breaking Internal Tides on the Continental Slope".GEOPHYSICAL RESEARCH LETTERS 45.12(2018):6160-6166.
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