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Interannual Variability of Lower Equatorial Intermediate Current Response to ENSO in the Western Pacific
Ma, Qiang1,2,3,4; Wang, Jianing1,2,3,4; Wang, Fan1,2,3,4; Zhang, Dongxiao5,6; Zhang, Zhixiang1,2,3,4; Lyu, Yilong1,2,3
2020-08-28
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
卷号47期号:16页码:10
通讯作者Wang, Jianing(wjn@qdio.ac.cn) ; Wang, Fan(fwang@qdio.ac.cn)
摘要The ocean currents of the tropical Pacific Ocean vary with El Nino-Southern Oscillation (ENSO) cycles. A mooring time series obtained during 2014-2018 in the western Pacific reveal that interannual variability extends to Lower Equatorial Intermediate Current (LEIC). The LEIC velocity anomalies are significantly correlated with the Nino-3.4 index at an 11-month lag. Monthly velocity data from the global ocean physical reanalysis product and from a linear continuously stratified ocean model during 1993-2018 capture the 2015-2016 signal and are used to identify the underlying mechanism. During El Nino (La Nina) events, the direct wind forcing in the central tropical Pacific and the reflection of Kelvin waves in the eastern Pacific during the first autumn-winter period contribute comparably to an eastward (westward) current anomaly in the western Pacific during the second autumn-winter period. This process is achieved mainly through the generation of the second baroclinic mode and off-equatorial westward-propagating downwelling (upwelling) Rossby waves.
关键词interannual variability Equatorial Intermediate Current ENSO Pacific Ocean Rossby wave Kelvin wave
DOI10.1029/2020GL089311
收录类别SCI
语种英语
资助项目National Natural Science Foundation of China[41730534] ; National Natural Science Foundation of China[41421005] ; National Natural Science Foundation of China[91958204] ; National Natural Science Foundation of China[41776022] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22000000] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SYS034] ; Scientific and Technological Innovation Project by Qingdao National Laboratory for Marine Science and Technology[2016ASKJ12] ; National Program on Global Change and Air-Sea Interaction[GASI-IPOVAI-01-01]
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000566245300080
出版者AMER GEOPHYSICAL UNION
引用统计
被引频次:7[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/337002/168493
专题海洋环流与波动重点实验室
通讯作者Wang, Jianing; Wang, Fan
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Univ Washington, Joint Inst Study Atmosphere & Ocean, Seattle, WA USA
6.NOAA, Pacific Marine Environm Lab, 7600 Sand Point Way Ne, Seattle, WA 98115 USA
第一作者单位海洋环流与波动重点实验室;  中国科学院海洋大科学研究中心
通讯作者单位海洋环流与波动重点实验室;  中国科学院海洋大科学研究中心
推荐引用方式
GB/T 7714
Ma, Qiang,Wang, Jianing,Wang, Fan,et al. Interannual Variability of Lower Equatorial Intermediate Current Response to ENSO in the Western Pacific[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(16):10.
APA Ma, Qiang,Wang, Jianing,Wang, Fan,Zhang, Dongxiao,Zhang, Zhixiang,&Lyu, Yilong.(2020).Interannual Variability of Lower Equatorial Intermediate Current Response to ENSO in the Western Pacific.GEOPHYSICAL RESEARCH LETTERS,47(16),10.
MLA Ma, Qiang,et al."Interannual Variability of Lower Equatorial Intermediate Current Response to ENSO in the Western Pacific".GEOPHYSICAL RESEARCH LETTERS 47.16(2020):10.
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