IOCAS-IR  > 海洋环流与波动重点实验室
Wind-forced equatorial wave dynamics of the Pacific Ocean during 2014/2015 and 2015/2016 El Nino events
Wang Jing1,2,3; Yuan Dongliang1,2,3; Xu Tengfei4; Zhao Xia1,2,3
2020-07-10
Source PublicationJOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN2096-5508
Pages15
AbstractThe equatorial wave dynamics of interannual sea level variations between 2014/2015 and 2015/2016 El Nino events are compared using the Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics Climate Ocean Model (LICOM) forced by the National Centers for Environmental Prediction (NCEP) reanalysis I wind stress and heat flux during 2000-2015. In addition, the LICOM can reproduce the interannual variability of sea surface temperature anomalies (SSTA) and sea level anomalies (SLA) along the equator over the Pacific Ocean in comparison with the Hadley center and altimetric data well. We extracted the equatorial wave coefficients of LICOM simulation to get the contribution to SLA by multiplying the meridional wave structure. During 2014/2015 El Nino event, upwelling equatorial Kelvin waves from the western boundary in April 2014 reach the eastern Pacific Ocean, which weakened SLA in the eastern Pacific Ocean. However, no upwelling equatorial Kelvin waves from the western boundary of the Pacific Ocean could reach the eastern boundary during the 2015/2016 El Nino event. Linear wave model results also demonstrate that upwelling equatorial Kelvin waves in both 2014/2015 and 2015/2016 from the western boundary can reach the eastern boundary. However, the contribution from stronger westerly anomalies forced downwelling equatorial Kelvin waves overwhelmed that from the upwelling equatorial Kelvin waves from the western boundary in 2015. Therefore, the western boundary reflection and weak westerly wind burst inhibited the growth of the 2014/2015 El Nino event. The disclosed equatorial wave dynamics are important to the simulation and prediction of ENSO events in future studies.
KeywordPacific Ocean equatorial waves western boundary reflection El Nino
DOI10.1007/s00343-020-9329-9
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2019YFA0606702] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB42000000] ; National Natural Science Foundation of China[41776011] ; National Natural Science Foundation of China[41421005] ; National Natural Science Foundation of China[41720104008] ; Chinese Academy of Sciences[XDA11010203] ; Chinese Academy of Sciences[XDA11010301] ; Shandong Provincial Projects[U1606402]
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS IDWOS:000547232100002
PublisherSCIENCE PRESS
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Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/167826
Collection海洋环流与波动重点实验室
Corresponding AuthorWang Jing
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao 266071, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
4.Minist Nat Resources, Inst Oceanog 1, Qingdao 266061, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang Jing,Yuan Dongliang,Xu Tengfei,et al. Wind-forced equatorial wave dynamics of the Pacific Ocean during 2014/2015 and 2015/2016 El Nino events[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2020:15.
APA Wang Jing,Yuan Dongliang,Xu Tengfei,&Zhao Xia.(2020).Wind-forced equatorial wave dynamics of the Pacific Ocean during 2014/2015 and 2015/2016 El Nino events.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,15.
MLA Wang Jing,et al."Wind-forced equatorial wave dynamics of the Pacific Ocean during 2014/2015 and 2015/2016 El Nino events".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2020):15.
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