Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-016-3087-6 |
Interbasin coupling between the tropical Indian and Pacific Ocean on interannual timescale: observation and CMIP5 reproduction | |
Ha, Kyung-Ja1,2; Chu, Jung-Eun2; Lee, June-Yi1; Yun, Kyung-Sook1 | |
2017 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 48 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea |
英文摘要 | The interaction of El Nio-Southern Oscillation (ENSO) with tropical Indian Ocean's two major modes, i.e. Indian Ocean Dipole (IOD) and Indian Ocean basinwide mode (IOBM), is of great importance to understanding global climate variability. Using observational data for the last 50 years and the phase five of Coupled Model Intercomparison Project (CMIP5) historical simulation for the last 100 years, this study investigates the role of interbasin coupling between the Indian and Pacific Ocean on El Nio evolution. Analyses suggest that the combined effect of the IOD during the developing El Nio phase and the IOBM during the decaying phase plays a critical role in leading a fast transition from El Nio to La Nia. In particular, a faster IOD termination and predominant IOBM in the El Nio winter result in prevailing easterly wind anomalies through the eastern Indian Ocean to the western Pacific, countervailing the IOD-related westerly wind anomalies over the western Pacific. The significant easterly wind anomalies then contribute to the maintenance of the western North Pacific subtropical high anomalies until the El Nio decaying summer, consequently facilitating rapid termination of El Nio and transition to La Nia. Meanwhile, the sole effect of either IOD or IOBM causes a slow decay of El Nio. The 20 CMIP5 models generally capture the role of interbasin coupling on the El Nio evolution, in spite of models' common deficiencies in simulating the easterly wind anomalies after decay of IOD. The late IOD demise might cause weaker El Nio phase transition in models due to the longer-lasting destructive interference between IOD- and IOBM-related western Pacific wind anomalies. This study indicates that challenges still remain in better simulations of the various aspects of interbasin Indo-Pacific coupling and then a diversity of the ENSO life cycle. |
英文关键词 | Indo-Pacific interbasin coupling El Nino-Southern Oscillation Indian Ocean basin-wide mode Indian Ocean Dipole CMIP5 ENSO transition |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000392307300026 |
WOS关键词 | ASYMMETRIC ENSO TRANSITION ; SEA-SURFACE TEMPERATURE ; WESTERN NORTH PACIFIC ; EL-NINO ; DIPOLE MODE ; MULTIMODEL ENSEMBLE ; ATMOSPHERIC BRIDGE ; SST ANOMALIES ; ZONAL MODE ; LA-NINA |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/35494 |
专题 | 气候变化 |
作者单位 | 1.Pusan Natl Univ, Res Ctr Climate Sci, Busan 46241, South Korea; 2.Pusan Natl Univ, Div Earth Environm Syst, Coll Nat Sci, Busan, South Korea |
推荐引用方式 GB/T 7714 | Ha, Kyung-Ja,Chu, Jung-Eun,Lee, June-Yi,et al. Interbasin coupling between the tropical Indian and Pacific Ocean on interannual timescale: observation and CMIP5 reproduction[J]. CLIMATE DYNAMICS,2017,48. |
APA | Ha, Kyung-Ja,Chu, Jung-Eun,Lee, June-Yi,&Yun, Kyung-Sook.(2017).Interbasin coupling between the tropical Indian and Pacific Ocean on interannual timescale: observation and CMIP5 reproduction.CLIMATE DYNAMICS,48. |
MLA | Ha, Kyung-Ja,et al."Interbasin coupling between the tropical Indian and Pacific Ocean on interannual timescale: observation and CMIP5 reproduction".CLIMATE DYNAMICS 48(2017). |
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