IOCAS-IR  > 海洋环流与波动重点实验室
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
Source PublicationGEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
Volume47Issue:16Pages:10
Corresponding AuthorWang, Jianing(wjn@qdio.ac.cn) ; Wang, Fan(fwang@qdio.ac.cn)
AbstractThe 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.
Keywordinterannual variability Equatorial Intermediate Current ENSO Pacific Ocean Rossby wave Kelvin wave
DOI10.1029/2020GL089311
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000566245300080
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/168493
Collection海洋环流与波动重点实验室
Corresponding AuthorWang, Jianing; Wang, Fan
Affiliation1.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
First Author AffilicationKey Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
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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