Weak Thermocline Mixing in the North Pacific Low-Latitude Western Boundary Current System

doi:10.1002/2017GL075210

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Weak Thermocline Mixing in the North Pacific Low-Latitude Western Boundary Current System
	Liu, Zhiyu 1,2; Lian, Qiang 1,2,3; Zhang, Fangtao 1,2; Wang, Lei 1,2; Li, Mingming 4; Bai, Xiaolin 1,2; Wang, Jianing5 ; Wang, Fan5
刊名	GEOPHYSICAL RESEARCH LETTERS
	2017-10-28
卷号	44 期号:20 页码:10530-10539
DOI	10.1002/2017GL075210
文献子类	Article
英文摘要	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.
语种	英语
WOS记录号	WOS:000416761600053
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/143289]
专题	海洋研究所_海洋环流与波动重点实验室海洋研究所_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.