IOCAS-IR  > 海洋环流与波动重点实验室
The Subsurface Mode Tropical Instability Waves in the Equatorial Pacific Ocean and Their Impacts on Shear and Mixing
Liu, Chuanyu1,2,3,4; Fang, Liyuan1,2,3,4; Koehl, Armin5; Liu, Zhiyu6,7; Smyth, William D.8; Wang, Fan1,2,3,4
2019-11-14
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
页码9
通讯作者Liu, Chuanyu(chuanyu.liu@qdio.ac.cn)
摘要The tropical instability waves (TIWs) in the eastern tropical Pacific have generally been considered as surface-intensified structures resembling the first baroclinic mode. Here, we report on the existence of subsurface-intensified TIWs on the equator. These TIWs are primarily manifested in zonal velocities, inducing maximum velocity oscillations at 70-90 m depth with amplitudes of 0.1-0.2 m/s and periods of 5-20 days. They account for similar to 20% of the variance at 5- to 30-day periods, with another similar to 50% being contributed by the surface-intensified TIWs. These waves are most significant during the TIW seasons; they are energized in part by barotropic instabilities and usually last for 3-7 months. Via interacting with the mean flow, they can induce strong out-of-phase shear changes between similar to 50-m depth and just above the Equatorial Undercurrent core and may lead to complex diapycnal mixing structures. Their horizontal structures, generation mechanism(s), and large-scale impacts remain to be disclosed.
关键词tropical instability waves second baroclinic mode subsurface upper core layer mixing equatorial Pacific
DOI10.1029/2019GL085123
收录类别SCI
语种英语
资助项目National Key Research Program of China[2016YFC1401703] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS)[QYZDB-SSW-DQC030] ; National Natural Science Foundation of China (NSFC)[41976012] ; National Natural Science Foundation of China (NSFC)[41606026] ; National Natural Science Foundation of China (NSFC)[Y72143101B] ; National Natural Science Foundation of China (NSFC)[41730534] ; National Natural Science Foundation of China (NSFC)[41622601] ; National Natural Science Foundation of China (NSFC)[91858201] ; Aoshan Talents Program, Pilot National Laboratory for Marine Science and Technology at Qingdao (QNLM)[2017ASTCP-ES03] ; U.S. National Science Foundation[OCE-1355768] ; State Key Laboratory of Marine Environmental Science, Xiamen University
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000496469800001
出版者AMER GEOPHYSICAL UNION
引用统计
被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/165089
专题海洋环流与波动重点实验室
通讯作者Liu, Chuanyu
作者单位1.Chinese Acad Sci IOCAS, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Shandong, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao QNLM, Marine Dynam Proc & Climate Funct Lab, Qingdao, Shandong, Peoples R China
3.UCAS, Coll Earth & Planetary Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Shandong, Peoples R China
5.Univ Hamburg, Inst Oceanog, Hamburg, Germany
6.Xiamen Univ, Coll Ocean & Earth Sci, State Key Lab Marine Environm Sci, Xiamen, Fujian, Peoples R China
7.Xiamen Univ, Coll Ocean & Earth Sci, Dept Phys Oceanog, Xiamen, Fujian, Peoples R China
8.Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA
第一作者单位中国科学院海洋研究所
通讯作者单位中国科学院海洋研究所
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GB/T 7714
Liu, Chuanyu,Fang, Liyuan,Koehl, Armin,et al. The Subsurface Mode Tropical Instability Waves in the Equatorial Pacific Ocean and Their Impacts on Shear and Mixing[J]. GEOPHYSICAL RESEARCH LETTERS,2019:9.
APA Liu, Chuanyu,Fang, Liyuan,Koehl, Armin,Liu, Zhiyu,Smyth, William D.,&Wang, Fan.(2019).The Subsurface Mode Tropical Instability Waves in the Equatorial Pacific Ocean and Their Impacts on Shear and Mixing.GEOPHYSICAL RESEARCH LETTERS,9.
MLA Liu, Chuanyu,et al."The Subsurface Mode Tropical Instability Waves in the Equatorial Pacific Ocean and Their Impacts on Shear and Mixing".GEOPHYSICAL RESEARCH LETTERS (2019):9.
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