IOCAS-IR  > 海洋环流与波动重点实验室
Ocean salinity indices of interannual modes in the tropical Pacific
Chi, Jianwei1,2,3,4; Qu, Tangdong4; Du, Yan1,2,3; Qi, Jifeng5; Shi, Ping1,3
2021-08-07
Source PublicationCLIMATE DYNAMICS
ISSN0930-7575
Pages19
Corresponding AuthorDu, Yan(duyan@scsio.ac.cn)
AbstractThis study investigates the interannual modes of the tropical Pacific using salinity from observations, ocean reanalysis output and CMIP6 products. Here we propose two indices of sea surface salinity (SSS), a monopole mode and a dipole mode, to identify the El Nino-South Oscillation (ENSO) and its diversity, respectively. The monopole mode is primarily controlled by atmospheric forcing, namely, the enhanced precipitation that induces negative SSS anomalies across nearly the entire tropical Pacific. The dipole mode is mainly forced by oceanic dynamics, with zonal current transporting fresh water from the western fresh pool into the western-central and salty water from the subtropics into the eastern tropical Pacific. Under a global warming condition, an increase in the monopole and dipole mode variance indicates an increase in both the central and eastern Pacific El Nino variability. The increase in central Pacific El Nino variability is largely due to enhanced vertical stratification during global warming in the upper layer, with intensified zonal advection. An eastern Pacific El Nino-like warming pattern contributes to the increase in eastern Pacific El Nino, with enhanced precipitation over the central-eastern tropical Pacific.
KeywordSea surface salinity El Nino-South Oscillation (ENSO) Central and eastern Pacific El Nino Climate change CMIP6
DOI10.1007/s00382-021-05911-9
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[42,006,028] ; National Natural Science Foundation of China[41,830,538] ; National Natural Science Foundation of China[42,090,042] ; Chinese Academy of Sciences[XDB42010305] ; Chinese Academy of Sciences[XDA15020901] ; Chinese Academy of Sciences[133244KYSB20190031] ; National Basic Research Program of China[2018YFA0605704] ; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML2019ZD0303] ; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[2019BT02H594] ; Open Fund of the Key Laboratory of Ocean Circulation and Waves[KLOCW2004] ; State Key Laboratory of Tropical Oceanography (South China Sea Institute of Oceanology Chinese Academy of Sciences)[LTOZZ2101] ; China Scholarship Council
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000682633800002
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/175963
Collection海洋环流与波动重点实验室
Corresponding AuthorDu, Yan
Affiliation1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, 164 West Xingang Rd, Guangzhou 510301, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 511458, Peoples R China
4.Univ Calif Los Angeles, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA 90095 USA
5.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Chi, Jianwei,Qu, Tangdong,Du, Yan,et al. Ocean salinity indices of interannual modes in the tropical Pacific[J]. CLIMATE DYNAMICS,2021:19.
APA Chi, Jianwei,Qu, Tangdong,Du, Yan,Qi, Jifeng,&Shi, Ping.(2021).Ocean salinity indices of interannual modes in the tropical Pacific.CLIMATE DYNAMICS,19.
MLA Chi, Jianwei,et al."Ocean salinity indices of interannual modes in the tropical Pacific".CLIMATE DYNAMICS (2021):19.
Files in This Item:
File Name/Size DocType Version Access License
Chi2021_Article_Ocea(9134KB)期刊论文出版稿延迟开放CC BY-NC-SAView 2023-7-1后可获取
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chi, Jianwei]'s Articles
[Qu, Tangdong]'s Articles
[Du, Yan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chi, Jianwei]'s Articles
[Qu, Tangdong]'s Articles
[Du, Yan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chi, Jianwei]'s Articles
[Qu, Tangdong]'s Articles
[Du, Yan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Chi2021_Article_OceanSalinityIndicesOfInterann.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.