Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
| 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 | |
| 发表期刊 | JOURNAL OF OCEANOLOGY AND LIMNOLOGY
 |
| ISSN | 2096-5508 |
| 页码 | 15 |
| 通讯作者 | Feng, Junqiao(fengjunqiao@qdio.ac.cn) |
| 摘要 | We 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. |
| 关键词 | intraseasonal variability equatorial Pacific El Nino-Southern Oscillation (ENSO) Self-Organizing Maps (SOM) |
| DOI | 10.1007/s00343-020-9328-x |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National 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研究方向 | Marine & Freshwater Biology ; Oceanography |
| WOS类目 | Limnology ; Oceanography |
| WOS记录号 | WOS:000539179000001 |
| 出版者 | SCIENCE PRESS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/167721 |
| 专题 | 海洋环流与波动重点实验室 |
| 通讯作者 | Feng, Junqiao |
| 作者单位 | 1.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 |
| 第一作者单位 | 中国科学院海洋研究所; 海洋环流与波动重点实验室 |
| 通讯作者单位 | 中国科学院海洋研究所; 海洋环流与波动重点实验室 |
| 推荐引用方式 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. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Intraseasonal variab（3119KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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