Observing subsurface changes of two anticyclonic eddies passing over the Izu-Ogasawara Ridge
Xu, LX; Xie, SP; Jing, Z; Wu, LX; Liu, QY; Li, PL; Du, Y; lxu@ouc.edu.cn
2017
发表期刊GEOPHYSICAL RESEARCH LETTERS
卷号44期号:4页码:1857-1865
摘要Eddy-bathymetry interactions are common in the ocean, but the full evolution of the interaction is difficult to observe below the surface. Using 17 Iridium Argo floats, we continually track two anticyclonic eddies (AEs) in the North Pacific that migrate westward and encounter the Izu-Ogasawara Ridge. Based on over 5000 Argo profiles following the two AEs, this study presents the first detailed descriptions of changes in eddy vertical structure and diapycnal mixing as the two AEs pass the Ridge. There, we find that isopycnals dome up and the eddy diameter increases, while the diapycnal mixing is enhanced-to the order of 10(-4) m(2) s(-1) or larger, in comparison with an ambient of 10(-5) m(2) s(-1). The enhanced mixing around the AE center in the upper -1000m appears where the underlying bathymetry is shallower than -4000m and is mainly sustained by tidally generated internal waves.
部门归属[Xu, Lixiao; Xie, Shang-Ping; Jing, Zhao; Wu, Lixin; Liu, Qinyu; Li, Peiliang] Ocean Univ China, Phys Oceanog Lab CIMST, Qingdao, Peoples R China; [Xu, Lixiao; Xie, Shang-Ping; Jing, Zhao; Wu, Lixin; Liu, Qinyu; Li, Peiliang] Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China; [Xie, Shang-Ping] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA; [Jing, Zhao] Texas A&M Univ, Dept Oceanog, College Stn, TX 77843 USA; [Du, Yan] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
资助项目LTO
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/16431
专题热带海洋环境国家重点实验室(LTO)
通讯作者lxu@ouc.edu.cn
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GB/T 7714
Xu, LX,Xie, SP,Jing, Z,et al. Observing subsurface changes of two anticyclonic eddies passing over the Izu-Ogasawara Ridge[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(4):1857-1865.
APA Xu, LX.,Xie, SP.,Jing, Z.,Wu, LX.,Liu, QY.,...&lxu@ouc.edu.cn.(2017).Observing subsurface changes of two anticyclonic eddies passing over the Izu-Ogasawara Ridge.GEOPHYSICAL RESEARCH LETTERS,44(4),1857-1865.
MLA Xu, LX,et al."Observing subsurface changes of two anticyclonic eddies passing over the Izu-Ogasawara Ridge".GEOPHYSICAL RESEARCH LETTERS 44.4(2017):1857-1865.
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