IOCAS-IR  > 海洋环流与波动重点实验室
The IOD-ENSO precursory teleconnection over the tropical Indo-Pacific Ocean: dynamics and long-term trends under global warming
Yuan Dongliang1,2,3,4,5; Hu Xiaoyue1,2,3,4; Xu Peng1,2,3,4; Zhao Xia1,2,3; Masumoto, Yukio6; Han Weiqing7
2018
Source PublicationJOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN2096-5508
Volume36Issue:1Pages:4-19
Corresponding AuthorYuan Dongliang(dyuan@qdio.ac.cn)
AbstractThe dynamics of the teleconnection between the Indian Ocean Dipole (IOD) in the tropical Indian Ocean and El Nio-Southern Oscillation (ENSO) in the tropical Pacific Ocean at the time lag of one year are investigated using lag correlations between the oceanic anomalies in the southeastern tropical Indian Ocean in fall and those in the tropical Indo-Pacific Ocean in the following winter-fall seasons in the observations and in high-resolution global ocean model simulations. The lag correlations suggest that the IOD-forced interannual transport anomalies of the Indonesian Throughflow generate thermocline anomalies in the western equatorial Pacific Ocean, which propagate to the east to induce ocean-atmosphere coupled evolution leading to ENSO. In comparison, lag correlations between the surface zonal wind anomalies over the western equatorial Pacific in fall and the Indo-Pacific oceanic anomalies at time lags longer than a season are all insignificant, suggesting the short memory of the atmospheric bridge. A linear continuously stratified model is used to investigate the dynamics of the oceanic connection between the tropical Indian and Pacific Oceans. The experiments suggest that interannual equatorial Kelvin waves from the Indian Ocean propagate into the equatorial Pacific Ocean through the Makassar Strait and the eastern Indonesian seas with a penetration rate of about 10%-15% depending on the baroclinic modes. The IOD-ENSO teleconnection is found to get stronger in the past century or so. Diagnoses of the CMIP5 model simulations suggest that the increased teleconnection is associated with decreased Indonesian Throughflow transports in the recent century, which is found sensitive to the global warming forcing.
KeywordIndian Ocean Dipole (IOD) El Nino-Southern Oscillation (ENSO) oceanic channel Indonesian Throughflow ENSO predictability
DOI10.1007/s00343-018-6252-4
Indexed BySCI
Language英语
Funding ProjectNational Basic Research Program of China (973 Program)[2012CB956001] ; CMA[GYHY201306018] ; State Oceanic Administration (SOA)[GASI-03-01-01-05] ; National Natural Science Foundation of China (NSFC)[41421005] ; National Natural Science Foundation of China (NSFC)[41176019] ; National Natural Science Foundation of China (NSFC)[U1406401] ; Shandong Provincial Project[2014GJJS0101] ; Strategic Priority Project of CAS[XDA11010301] ; Strategic Priority Project of CAS[XDA11010102] ; Strategic Priority Project of CAS[XDA11010205] ; QNLM Project[2016ASKJ04]
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS IDWOS:000428050400002
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/158699
Collection海洋环流与波动重点实验室
Corresponding AuthorYuan Dongliang
Affiliation1.Chinese Acad Sci, KLOCW, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266071, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Qingdao Collaborat Innovat Ctr Marine Sci & Techn, Qingdao 266071, Peoples R China
6.Univ Tokyo, Tokyo, Japan
7.Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Yuan Dongliang,Hu Xiaoyue,Xu Peng,et al. The IOD-ENSO precursory teleconnection over the tropical Indo-Pacific Ocean: dynamics and long-term trends under global warming[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2018,36(1):4-19.
APA Yuan Dongliang,Hu Xiaoyue,Xu Peng,Zhao Xia,Masumoto, Yukio,&Han Weiqing.(2018).The IOD-ENSO precursory teleconnection over the tropical Indo-Pacific Ocean: dynamics and long-term trends under global warming.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,36(1),4-19.
MLA Yuan Dongliang,et al."The IOD-ENSO precursory teleconnection over the tropical Indo-Pacific Ocean: dynamics and long-term trends under global warming".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 36.1(2018):4-19.
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