Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
| 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
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| 2018 | |
| Source Publication | JOURNAL OF OCEANOLOGY AND LIMNOLOGY
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| ISSN | 2096-5508 |
| Volume | 36Issue:1Pages:4-19 |
| Corresponding Author | Yuan Dongliang(dyuan@qdio.ac.cn) |
| Abstract | The 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. |
| Keyword | Indian Ocean Dipole (IOD) El Nino-Southern Oscillation (ENSO) oceanic channel Indonesian Throughflow ENSO predictability |
| DOI | 10.1007/s00343-018-6252-4 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National 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] ; National 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 Area | Marine & Freshwater Biology ; Oceanography |
| WOS Subject | Limnology ; Oceanography |
| WOS ID | WOS:000428050400002 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/158699 |
| Collection | 海洋环流与波动重点实验室 |
| Corresponding Author | Yuan Dongliang |
| Affiliation | 1.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 Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute 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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| The IOD-ENSO precurs（4518KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View | |
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