IOCAS-IR  > 海洋环流与波动重点实验室
Intraseasonal variability of the equatorial Pacific Ocean and its relationship with ENSO based on Self-Organizing Maps analysis
Feng, Junqiao1,2,3,4; Wang, Fujun1,2,3,4; Wang, Qingye1,2,3,4; Hu, Dunxin1,2,3,4
2020-06-07
Source PublicationJOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN2096-5508
Pages15
Corresponding AuthorFeng, Junqiao(fengjunqiao@qdio.ac.cn)
AbstractWe investigated the intraseasonal variability of equatorial Pacific subsurface temperature and its relationship with El Nino-Southern Oscillation (ENSO) using Self-Organizing Maps (SOM) analysis. Variation in intraseasonal subsurface temperature is mainly found along the thermocline. The SOM patterns concentrate in basin-wide seesaw or sandwich structures along an east-west axis. Both the seesaw and sandwich SOM patterns oscillate with periods of 55 to 90 days, with the sequence of them showing features of equatorial intraseasonal Kelvin wave, and have marked interannual variations in their occurrence frequencies. Further examination shows that the interannual variability of the SOM patterns is closely related to ENSO; and maxima in composite interannual variability of the SOM patterns are located in the central Pacific during CP El Nino and in the eastern Pacific during EP El Nino. These results imply that some of the ENSO forcing is manifested through changes in the occurrence frequency of intraseasonal patterns, in which the change of the intraseasonal Kelvin wave plays an important role.
Keywordintraseasonal variability equatorial Pacific El Nino-Southern Oscillation (ENSO) Self-Organizing Maps (SOM)
DOI10.1007/s00343-020-9328-x
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[41976027] ; National Natural Science Foundation of China (NSFC)[41976011] ; National Natural Science Foundation of China (NSFC)[41730534] ; National Natural Science Foundation of China (NSFC)[41476017] ; National Natural Science Foundation of China (NSFC)[41576014] ; Bureau of International Cooperation Chinese Academy of Sciences[132B61KYSB20170005]
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS IDWOS:000539179000001
PublisherSCIENCE PRESS
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Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167721
Collection海洋环流与波动重点实验室
Corresponding AuthorFeng, Junqiao
Affiliation1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao 266237, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Feng, Junqiao,Wang, Fujun,Wang, Qingye,et al. Intraseasonal variability of the equatorial Pacific Ocean and its relationship with ENSO based on Self-Organizing Maps analysis[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2020:15.
APA Feng, Junqiao,Wang, Fujun,Wang, Qingye,&Hu, Dunxin.(2020).Intraseasonal variability of the equatorial Pacific Ocean and its relationship with ENSO based on Self-Organizing Maps analysis.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,15.
MLA Feng, Junqiao,et al."Intraseasonal variability of the equatorial Pacific Ocean and its relationship with ENSO based on Self-Organizing Maps analysis".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2020):15.
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