Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Weak Thermocline Mixing in the North Pacific Low-Latitude Western Boundary Current System | |
Liu, Zhiyu1,2; Lian, Qiang1,2,3; Zhang, Fangtao1,2; Wang, Lei1,2; Li, Mingming4; Bai, Xiaolin1,2; Wang, Jianing5; Wang, Fan5 | |
2017-10-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
卷号 | 44期号:20页码:10530-10539 |
文章类型 | Article |
摘要 | Despite its potential importance in the global climate system, mixing properties of the North Pacific low-latitude western boundary current system (LLWBC) remained unsampled until very recently. We report here on the first measurements of turbulence microstructure associated with these currents, made in the western boundary region of the tropical North Pacific east of the Philippines. The results suggest that thermocline mixing in the North Pacific LLWBC is generally weak with the diapycnal diffusivity kappa(rho) similar to O(10(-6))m(2) s(-1). This is consistent with predictions from internal wave-wave interaction theory that mixing due to internal wave breaking is significantly reduced at low latitudes. Enhanced mixing is found to be associated with a permanent cyclonic eddy, the Mindanao Eddy, but mainly at its south and north flanks. There, kappa(rho) is elevated by an order of magnitude due to eddy-induced geostrophic shear. Mixing in the eddy core is at the background level with no indication of enhancement. |
DOI | 10.1002/2017GL075210 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000416761600053 |
引用统计 | |
文献类型 | 期刊论文 |
版本 | 出版稿 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/143289 |
专题 | 海洋环流与波动重点实验室 实验海洋生物学重点实验室 |
作者单位 | 1.Xiamen Univ, State Key Lab Marine Environm Sci, Coll Ocean & Earth Sci, Xiamen, Peoples R China 2.Xiamen Univ, Dept Phys Oceanog, Coll Ocean & Earth Sci, Xiamen, Peoples R China 3.Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA 4.Guangdong Ocean Univ, Coll Oceanog & Meteorol, Zhanjiang, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Zhiyu,Lian, Qiang,Zhang, Fangtao,et al. Weak Thermocline Mixing in the North Pacific Low-Latitude Western Boundary Current System[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(20):10530-10539. |
APA | Liu, Zhiyu.,Lian, Qiang.,Zhang, Fangtao.,Wang, Lei.,Li, Mingming.,...&Wang, Fan.(2017).Weak Thermocline Mixing in the North Pacific Low-Latitude Western Boundary Current System.GEOPHYSICAL RESEARCH LETTERS,44(20),10530-10539. |
MLA | Liu, Zhiyu,et al."Weak Thermocline Mixing in the North Pacific Low-Latitude Western Boundary Current System".GEOPHYSICAL RESEARCH LETTERS 44.20(2017):10530-10539. |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Weak Thermocline Mix(9151KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 |
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