Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
| 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
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| 2020-08-28 | |
| Source Publication | GEOPHYSICAL RESEARCH LETTERS
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| ISSN | 0094-8276 |
| Volume | 47Issue:16Pages:10 |
| Corresponding Author | Wang, Jianing(wjn@qdio.ac.cn) ; Wang, Fan(fwang@qdio.ac.cn) |
| Abstract | 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. |
| Keyword | interannual variability Equatorial Intermediate Current ENSO Pacific Ocean Rossby wave Kelvin wave |
| DOI | 10.1029/2020GL089311 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Geology |
| WOS Subject | Geosciences, Multidisciplinary |
| WOS ID | WOS:000566245300080 |
| Publisher | AMER GEOPHYSICAL UNION |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/168493 |
| Collection | 海洋环流与波动重点实验室 |
| Corresponding Author | Wang, Jianing; Wang, Fan |
| Affiliation | 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 |
| First Author Affilication | Key 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 Affilication | Key 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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| Interannual Variabil（5090KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View | |
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