Salinity variability in the tropical Pacific during the Central-Pacific and Eastern-Pacific El Nino events

doi:10.1016/j.jmarsys.2019.103225

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

	Salinity variability in the tropical Pacific during the Central-Pacific and Eastern-Pacific El Nino events
	Qi, Jifeng 3,4,5,6; Zhang, Linlin 3,5,6; Qu, Tangdong 4; Yin, Baoshu 2,3,5,6; Xu, Zhenhua 3,5,6; Yang, Dezhou 3,5,6; Li, Delei 3,5,6; Qin, Yinghao 1
刊名	JOURNAL OF MARINE SYSTEMS
	2019-11-01
卷号	199 页码:14
关键词	Sea surface salinity El Nino Tropical Pacific ORAS4 reanalysis
ISSN号	0924-7963
DOI	10.1016/j.jmarsys.2019.103225
通讯作者	Yin, Baoshu(bsyin@qdio.ac.cn)
英文摘要	In this study, sea surface salinity (SSS) variability associated with two types of El Nino in the tropical Pacific is investigated using observational data and reanalysis products for the period from 1979 to 2017. The results show that the central (CP) and eastern (EP) Pacific El Nino events have distinct SSS signatures. During a CP El Nino event, negative SSS anomalies appear in the western equatorial Pacific, and positive SSS anomalies in the east. During an EP El Nino event, large negative SSS anomalies occur in the central equatorial Pacific and positive SSS anomalies in the west, with the core of negative SSS anomalies being shifted by about 25 degrees longitude eastward compared with a CP El Nino event. A composite analysis indicates that large differences in SSS anomalies between the two types of El Nino are confined to the fresh pool and Nino 3.4 regions. Surface freshwater flux and horizontal advection are two major factors modulating the SSS there, but their relative importance in the two regions is different. In the fresh pool region, the positive SSS anomalies during an EP El Nino are much larger than those during a CP El Nino event. Their differences are mainly caused by surface freshwater flux anomalies, and horizontal advection anomalies play a secondary role. In the Nino 3.4 region, SSS anomalies are positive during a CP El Nino but negative during an EP El Nino. These differences are mainly caused by horizontal advection anomalies rather than freshwater flux anomalies associated with El Nino.
资助项目	National Key Research and Development Plan Sino-Australian Center for Healthy Coasts[2016YFE0101500] ; National Natural Science Foundation of China[41506020] ; National Natural Science Foundation of China[41776021] ; Foundation for Innovative Research Groups of NSFC[41421005] ; Strategic Pioneering Research Program of CAS[XDA19060202] ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1406401] ; Aoshan Sci-Tec Innovative Project of Qingdao National Laboratory for Marine Science and Technology[2016ASKJ02] ; Natural Science Foundation of Shan Dong[ZR2016DQ04]
WOS研究方向	Geology ; Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000486133400015
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/162744]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Yin, Baoshu
作者单位	1.Natl Marine Environm Forecasting Ctr, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Shandong, Peoples R China 4.Univ Calif Los Angeles, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA USA 5.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao, Shandong, Peoples R China 6.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Qi, Jifeng,Zhang, Linlin,Qu, Tangdong,et al. Salinity variability in the tropical Pacific during the Central-Pacific and Eastern-Pacific El Nino events[J]. JOURNAL OF MARINE SYSTEMS,2019,199:14.
APA	Qi, Jifeng.,Zhang, Linlin.,Qu, Tangdong.,Yin, Baoshu.,Xu, Zhenhua.,...&Qin, Yinghao.(2019).Salinity variability in the tropical Pacific during the Central-Pacific and Eastern-Pacific El Nino events.JOURNAL OF MARINE SYSTEMS,199,14.
MLA	Qi, Jifeng,et al."Salinity variability in the tropical Pacific during the Central-Pacific and Eastern-Pacific El Nino events".JOURNAL OF MARINE SYSTEMS 199(2019):14.