Impact of the subtropical South Pacific on the decadal change in El Ni?o zonal propagation
文献类型：期刊论文
| 作者 | Zheng, Jian1,2,3 ; Yang, Yuxing1,2; Wang, Faming1,2,3
|
| 刊名 | CLIMATE DYNAMICS
 |
| 出版日期 | 2024-02-27 |
| 页码 | 13 |
| 关键词 | El Nino Zonal propagation Decadal change Subtropical South Pacific |
| ISSN号 | 0930-7575 |
| DOI | 10.1007/s00382-024-07131-3 |
| 通讯作者 | Zheng, Jian(zhengjian@qdio.ac.cn) |
| 英文摘要 | The propagation of sea surface temperature (SST) anomalies along the equatorial Pacific Ocean during El Nino shifted around the late 1970s, previously propagating westward from the eastern Pacific and shifting to eastward propagation from the central Pacific. This shift has been attributed to decadal changes in the mean state of the equatorial Pacific. This study examined the influence of the subtropical South Pacific on the decadal variation in El Nino zonal propagation through the utilization of observational data and extensive simulations with coupled climate models. We showed that El Nino induced by the positive South Pacific Subtropical Dipole mode (pSPSD) started in the eastern Pacific and developed westward. The mean trade winds in the southeastern Pacific were stronger before the late 1970s, leading to a stronger pSPSD through enhanced wind-evaporation-SST feedback. Then, the pSPSD could trigger westward propagating El Nino. Contrarily, weaker pSPSD did not induce El Nino events after the late 1970s. El Nino initiated from other processes and propagated eastward. Our study reveals the modulation of the subtropical South Pacific on the decadal shift of El Nino propagation. |
| WOS关键词 | SEASONAL FOOTPRINTING MECHANISM ; SEA-SURFACE TEMPERATURE ; ATMOSPHERIC VARIABILITY ; MERIDIONAL MODES ; COLD-TONGUE ; NINO ONSET ; CIRCULATION ; WARM ; ITCZ ; ANOMALIES |
| 资助项目 | Natural Science Foundation of Shandong Province |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001172747900001 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/185585]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Zheng, Jian |
| 作者单位 | 1.Laoshan Lab, Qingdao, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Jian,Yang, Yuxing,Wang, Faming. Impact of the subtropical South Pacific on the decadal change in El Ni?o zonal propagation[J]. CLIMATE DYNAMICS,2024:13. |
| APA | Zheng, Jian,Yang, Yuxing,&Wang, Faming.(2024).Impact of the subtropical South Pacific on the decadal change in El Ni?o zonal propagation.CLIMATE DYNAMICS,13. |
| MLA | Zheng, Jian,et al."Impact of the subtropical South Pacific on the decadal change in El Ni?o zonal propagation".CLIMATE DYNAMICS (2024):13. |
入库方式： OAI收割
来源：海洋研究所
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