Wind-forced equatorial wave dynamics of the Pacific Ocean during 2014/2015 and 2015/2016 El Nino events

doi:10.1007/s00343-020-9329-9

CORC > 海洋研究所 > 中国科学院海洋研究所 > 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 Jing 1,2,3; Yuan Dongliang 1,2,3; Xu Tengfei 4; Zhao Xia 1,2,3
刊名	JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2020-07-10
页码	15
关键词	Pacific Ocean equatorial waves western boundary reflection El Nino
ISSN号	2096-5508
DOI	10.1007/s00343-020-9329-9
英文摘要	The 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.
资助项目	National 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研究方向	Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000547232100002
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/167825]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Wang Jing
作者单位	1.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
推荐引用方式 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.